TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela Ž.
AU  - Miladinović, Jelena
AU  - Miladinović, Zoran
AU  - Pastor, Ferenc
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2323
AB  - : Zero-current cell potential measurements were used
to determine the solution activity coefficient in a ternary system
{yKCl + (1 − y) KH2PO4}(aq) at temperature T = 298.15 K. The
cell of the type K−ISE|KCl(mKCl), KH2PO4(mKH2PO4
)|Ag|AgCl was
used in the total ionic strength range, Im = 0.0886−1.0046 mol
kg−1
. In order to generate a set of parameters that can be applied in
a wide range of mixed solution ionic strengths, the Pitzer,
Scatchard, and Clegg−Pitzer−Brimblecombe models were used to
fit all available experimental data, including cell potential and
isopiestic measurements from the literature. The experimental and
calculated values of thermodynamic properties for the studied
system are in excellent agreement. Potential interactions and solution structure were discussed by means of the excess free energy of
mixing via potential pairs, triplets, or quads for the investigated solution using the Scatchard model mixing parameters
PB  - ACS Publications
T2  - ACS Publications
T1  - Activity Coefficients of the System {yKCl + (1 − y)KH2PO4}(aq) at T = 298.15 K Determined by Cell Potential Measurements
VL  - 68
DO  - 10.1021/acs.jced.2c00704
ER  - 

@article{
author = "Ivanović, Tijana and Popović, Daniela Ž. and Miladinović, Jelena and Miladinović, Zoran and Pastor, Ferenc",
year = "2023",
abstract = ": Zero-current cell potential measurements were used
to determine the solution activity coefficient in a ternary system
{yKCl + (1 − y) KH2PO4}(aq) at temperature T = 298.15 K. The
cell of the type K−ISE|KCl(mKCl), KH2PO4(mKH2PO4
)|Ag|AgCl was
used in the total ionic strength range, Im = 0.0886−1.0046 mol
kg−1
. In order to generate a set of parameters that can be applied in
a wide range of mixed solution ionic strengths, the Pitzer,
Scatchard, and Clegg−Pitzer−Brimblecombe models were used to
fit all available experimental data, including cell potential and
isopiestic measurements from the literature. The experimental and
calculated values of thermodynamic properties for the studied
system are in excellent agreement. Potential interactions and solution structure were discussed by means of the excess free energy of
mixing via potential pairs, triplets, or quads for the investigated solution using the Scatchard model mixing parameters",
publisher = "ACS Publications",
journal = "ACS Publications",
title = "Activity Coefficients of the System {yKCl + (1 − y)KH2PO4}(aq) at T = 298.15 K Determined by Cell Potential Measurements",
volume = "68",
doi = "10.1021/acs.jced.2c00704"
}

Ivanović, T., Popović, D. Ž., Miladinović, J., Miladinović, Z.,& Pastor, F.. (2023). Activity Coefficients of the System {yKCl + (1 − y)KH2PO4}(aq) at T = 298.15 K Determined by Cell Potential Measurements. in ACS Publications
ACS Publications., 68.
https://doi.org/10.1021/acs.jced.2c00704

Ivanović T, Popović DŽ, Miladinović J, Miladinović Z, Pastor F. Activity Coefficients of the System {yKCl + (1 − y)KH2PO4}(aq) at T = 298.15 K Determined by Cell Potential Measurements. in ACS Publications. 2023;68.
doi:10.1021/acs.jced.2c00704 .

Ivanović, Tijana, Popović, Daniela Ž., Miladinović, Jelena, Miladinović, Zoran, Pastor, Ferenc, "Activity Coefficients of the System {yKCl + (1 − y)KH2PO4}(aq) at T = 298.15 K Determined by Cell Potential Measurements" in ACS Publications, 68 (2023),
https://doi.org/10.1021/acs.jced.2c00704 . .

TY  - JOUR
AU  - Popović, Daniela Ž.
AU  - Ivanović, Tijana
AU  - Miladinović, Jelena
AU  - Miladinović, Zoran
AU  - Pastor, Ferenc
AU  - Zlatić, Aleksandra
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3091
AB  - The mean ionic activity coefficients of NaCl in a ternary system {yNaCl + (1 – y)Na2HPO4}(aq)
were determined from measurements of the electromotive force (EMF) where the NaCl ionic strength
fraction was y = (0.3012; 0.4015; 0.5011; 0.5988; 0.7706; 0.8997) in the range of total ionic strength of the
solution Im = 0.0701–1.0161 mol kg–1 at temperature T = 298.15 K. A cell of the Na–ISE| ,Na2HPO4|AgCl|Ag, type was employed for the EMF measurements. The experimental results
from this work and the model of Pitzer’s were used to determine the mixing parameters. Good agreement
was found between the experimental and calculated values of the mean ionic activity coefficients of NaCl
with a standard deviation of fit 1.5 × 10–3. The values of the osmotic coefficients of the system {yNaCl +
(1 – y)Na2HPO4}(aq) were estimated on the basis of the determined parameters and compared with liter ature data. The differences in the osmotic coefficients between the estimated and experimental values were
negligible
PB  - Pleiades Publishing
T2  - Russian Journal of Physical Chemistry A
T1  - Activity Coefficients of the System {yNaCl + (1 – y)Na2HPO4}(aq)  at T = 298.15 K Determined by Electromotive Force Measurements
EP  - 2702
SP  - 2693
DO  - 10.1134/S0036024423120063
ER  - 

@article{
author = "Popović, Daniela Ž. and Ivanović, Tijana and Miladinović, Jelena and Miladinović, Zoran and Pastor, Ferenc and Zlatić, Aleksandra",
year = "2023",
abstract = "The mean ionic activity coefficients of NaCl in a ternary system {yNaCl + (1 – y)Na2HPO4}(aq)
were determined from measurements of the electromotive force (EMF) where the NaCl ionic strength
fraction was y = (0.3012; 0.4015; 0.5011; 0.5988; 0.7706; 0.8997) in the range of total ionic strength of the
solution Im = 0.0701–1.0161 mol kg–1 at temperature T = 298.15 K. A cell of the Na–ISE| ,Na2HPO4|AgCl|Ag, type was employed for the EMF measurements. The experimental results
from this work and the model of Pitzer’s were used to determine the mixing parameters. Good agreement
was found between the experimental and calculated values of the mean ionic activity coefficients of NaCl
with a standard deviation of fit 1.5 × 10–3. The values of the osmotic coefficients of the system {yNaCl +
(1 – y)Na2HPO4}(aq) were estimated on the basis of the determined parameters and compared with liter ature data. The differences in the osmotic coefficients between the estimated and experimental values were
negligible",
publisher = "Pleiades Publishing",
journal = "Russian Journal of Physical Chemistry A",
title = "Activity Coefficients of the System {yNaCl + (1 – y)Na2HPO4}(aq)  at T = 298.15 K Determined by Electromotive Force Measurements",
pages = "2702-2693",
doi = "10.1134/S0036024423120063"
}

Popović, D. Ž., Ivanović, T., Miladinović, J., Miladinović, Z., Pastor, F.,& Zlatić, A.. (2023). Activity Coefficients of the System {yNaCl + (1 – y)Na2HPO4}(aq)  at T = 298.15 K Determined by Electromotive Force Measurements. in Russian Journal of Physical Chemistry A
Pleiades Publishing., 2693-2702.
https://doi.org/10.1134/S0036024423120063

Popović DŽ, Ivanović T, Miladinović J, Miladinović Z, Pastor F, Zlatić A. Activity Coefficients of the System {yNaCl + (1 – y)Na2HPO4}(aq)  at T = 298.15 K Determined by Electromotive Force Measurements. in Russian Journal of Physical Chemistry A. 2023;:2693-2702.
doi:10.1134/S0036024423120063 .

Popović, Daniela Ž., Ivanović, Tijana, Miladinović, Jelena, Miladinović, Zoran, Pastor, Ferenc, Zlatić, Aleksandra, "Activity Coefficients of the System {yNaCl + (1 – y)Na2HPO4}(aq)  at T = 298.15 K Determined by Electromotive Force Measurements" in Russian Journal of Physical Chemistry A (2023):2693-2702,
https://doi.org/10.1134/S0036024423120063 . .

TY  - CONF
AU  - Ivanović, Tijana
AU  - Popović, Daniela Ž.
AU  - Miladinović, Jelena
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3067
AB  - Zero-current cell-potential measurements were used to determine the solution activity coefficient in a ternary system {yNaCl + (1-y)NaH2PO4}(aq) at a temperature T = 298.15 K, in the total ionic strength range I =  (0.1-1.0) molkg-1. The Na–ISENaCl(mNaCl), Na2HPO4 ( )AgAgCl, cell was used where m_NaCl and m_(NaH_2 PO_4 ) are the stoichiometric molalities of the NaCl and NaH2PO4 electrolytes in the mixture.  The ionic strength fraction of NaCl in the total ionic strength of the mixed solution was y = (0.199;0.310; 0.4101; 0.5051; 0.6090; 0.7776; 0.9037). The standard electrode potential of the electrode pair is Eo = 23.22737 mV. The values of the mean ionic coefficients of NaCl in the mixed electrolyte solution, γ_(±NaCl) , were estimated using Nerst equation (1):   (1)
where E_m is the electrode potential of the cell, γ_(〖±NaH〗_2 PO_4 ) is mean ionic activity coefficient of NaH2PO4 in the mixture and Kpot is selectivity coefficient having values less than  K^pot<10^(-4)  and therefore, was neglected.
The ionic strength of the solution is I =〖 m〗_NaCl+m_(NaH_2 PO_4 ) whereas the ionic strength fraction of NaCl is: y=〖 m〗_NaCl/I. To generate a set of parameters for the system {yNaCl + (1-y)NaH2PO4}(aq) that can be applied in the investigated range of mixed solution ionic strengths, Pitzer models[1] were used to fit the experimental data, represented in Figure 1. Parameter values for the pure electrolyte solutions of the second and third virial coefficients, B_NaCl 〖,B〗_(NaH_2 PO_4 ),〖 C〗_NaCl^T,〖 C〗_(NaH_2 PO_4)^T, respectively, that are mixture components, were taken from literature[2,3]. The treatment of experimental data using Pitzer’s model yielded the following values of the mixing parameters θ_(Cl,〖H_2 PO〗_4 ) = - 0.710 and Ψ_(Na,Cl,〖H_2 PO〗_4 ) = 0.1269.The experimental and calculated values of the thermodynamic properties of the studied system were in excellent agreement, with standard deviation s.d. (NaCl)= 0.0041
C3  - 38th International Conference on Solution Chemistry, 9–14 July, 2023, Belgrade, Serbia
T1  - Activity Coefficients of the System {yNaCl+(1–y)NaH2PO4}(aq) at T = 298.15 K
SP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3067
ER  - 

@conference{
author = "Ivanović, Tijana and Popović, Daniela Ž. and Miladinović, Jelena",
year = "2023",
abstract = "Zero-current cell-potential measurements were used to determine the solution activity coefficient in a ternary system {yNaCl + (1-y)NaH2PO4}(aq) at a temperature T = 298.15 K, in the total ionic strength range I =  (0.1-1.0) molkg-1. The Na–ISENaCl(mNaCl), Na2HPO4 ( )AgAgCl, cell was used where m_NaCl and m_(NaH_2 PO_4 ) are the stoichiometric molalities of the NaCl and NaH2PO4 electrolytes in the mixture.  The ionic strength fraction of NaCl in the total ionic strength of the mixed solution was y = (0.199;0.310; 0.4101; 0.5051; 0.6090; 0.7776; 0.9037). The standard electrode potential of the electrode pair is Eo = 23.22737 mV. The values of the mean ionic coefficients of NaCl in the mixed electrolyte solution, γ_(±NaCl) , were estimated using Nerst equation (1):   (1)
where E_m is the electrode potential of the cell, γ_(〖±NaH〗_2 PO_4 ) is mean ionic activity coefficient of NaH2PO4 in the mixture and Kpot is selectivity coefficient having values less than  K^pot<10^(-4)  and therefore, was neglected.
The ionic strength of the solution is I =〖 m〗_NaCl+m_(NaH_2 PO_4 ) whereas the ionic strength fraction of NaCl is: y=〖 m〗_NaCl/I. To generate a set of parameters for the system {yNaCl + (1-y)NaH2PO4}(aq) that can be applied in the investigated range of mixed solution ionic strengths, Pitzer models[1] were used to fit the experimental data, represented in Figure 1. Parameter values for the pure electrolyte solutions of the second and third virial coefficients, B_NaCl 〖,B〗_(NaH_2 PO_4 ),〖 C〗_NaCl^T,〖 C〗_(NaH_2 PO_4)^T, respectively, that are mixture components, were taken from literature[2,3]. The treatment of experimental data using Pitzer’s model yielded the following values of the mixing parameters θ_(Cl,〖H_2 PO〗_4 ) = - 0.710 and Ψ_(Na,Cl,〖H_2 PO〗_4 ) = 0.1269.The experimental and calculated values of the thermodynamic properties of the studied system were in excellent agreement, with standard deviation s.d. (NaCl)= 0.0041",
journal = "38th International Conference on Solution Chemistry, 9–14 July, 2023, Belgrade, Serbia",
title = "Activity Coefficients of the System {yNaCl+(1–y)NaH2PO4}(aq) at T = 298.15 K",
pages = "101",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3067"
}

Ivanović, T., Popović, D. Ž.,& Miladinović, J.. (2023). Activity Coefficients of the System {yNaCl+(1–y)NaH2PO4}(aq) at T = 298.15 K. in 38th International Conference on Solution Chemistry, 9–14 July, 2023, Belgrade, Serbia, 101.
https://hdl.handle.net/21.15107/rcub_rimsi_3067

Ivanović T, Popović DŽ, Miladinović J. Activity Coefficients of the System {yNaCl+(1–y)NaH2PO4}(aq) at T = 298.15 K. in 38th International Conference on Solution Chemistry, 9–14 July, 2023, Belgrade, Serbia. 2023;:101.
https://hdl.handle.net/21.15107/rcub_rimsi_3067 .

Ivanović, Tijana, Popović, Daniela Ž., Miladinović, Jelena, "Activity Coefficients of the System {yNaCl+(1–y)NaH2PO4}(aq) at T = 298.15 K" in 38th International Conference on Solution Chemistry, 9–14 July, 2023, Belgrade, Serbia (2023):101,
https://hdl.handle.net/21.15107/rcub_rimsi_3067 .

TY  - JOUR
AU  - Vojisavljević, Katarina
AU  - Savić, Slavica M.
AU  - Počuča-Nešić, Milica
AU  - Hodžić, Aden
AU  - Kriechbaum, Manfred
AU  - Ribić, Vesna
AU  - Rečnik, Aleksander
AU  - Mitrović, Jelena
AU  - Branković, Goran
AU  - Djokic, Veljko
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1860
AB  - Developing highly efficient semiconductor metal oxide (SMOX) sensors capable of accurate and fast responses to environmental humidity is still a challenging task. In addition to a not so pronounced sensitivity to relative humidity change, most of the SMOXs cannot meet the criteria of real-time humidity sensing due to their long response/recovery time. The way to tackle this problem is to control adsorption/desorption processes, i.e., water-vapor molecular dynamics, over the sensor’s active layer through the powder and pore morphology design. With this in mind, a KIT-5-mediated synthesis was used to achieve mesoporous tin (IV) oxide replica (SnO2-R) with controlled pore size and ordering through template inversion and compared with a sol-gel synthesized powder (SnO2-SG). Unlike SnO2-SG, SnO2-R possessed a high specific surface area and quite an open pore structure, similar to the KIT-5, as observed by TEM, BET and SWAXS analyses. According to TEM, SnO2-R consisted of fine-grained globular particles and some percent of exaggerated, grown twinned crystals. The distinctive morphology of the SnO2-R-based sensor, with its specific pore structure and an increased number of oxygen-related defects associated with the powder preparation process and detected at the sensor surface by XPS analysis, contributed to excellent humidity sensing performances at room temperature, comprised of a low hysteresis error (3.7%), sensitivity of 406.8 kΩ/RH% and swift response/recovery speed (4 s/6 s).
PB  - MDPI
T2  - Molecules
T1  - KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed
IS  - 4
SP  - 1754
VL  - 28
DO  - 10.3390/molecules28041754
ER  - 

@article{
author = "Vojisavljević, Katarina and Savić, Slavica M. and Počuča-Nešić, Milica and Hodžić, Aden and Kriechbaum, Manfred and Ribić, Vesna and Rečnik, Aleksander and Mitrović, Jelena and Branković, Goran and Djokic, Veljko",
year = "2023",
abstract = "Developing highly efficient semiconductor metal oxide (SMOX) sensors capable of accurate and fast responses to environmental humidity is still a challenging task. In addition to a not so pronounced sensitivity to relative humidity change, most of the SMOXs cannot meet the criteria of real-time humidity sensing due to their long response/recovery time. The way to tackle this problem is to control adsorption/desorption processes, i.e., water-vapor molecular dynamics, over the sensor’s active layer through the powder and pore morphology design. With this in mind, a KIT-5-mediated synthesis was used to achieve mesoporous tin (IV) oxide replica (SnO2-R) with controlled pore size and ordering through template inversion and compared with a sol-gel synthesized powder (SnO2-SG). Unlike SnO2-SG, SnO2-R possessed a high specific surface area and quite an open pore structure, similar to the KIT-5, as observed by TEM, BET and SWAXS analyses. According to TEM, SnO2-R consisted of fine-grained globular particles and some percent of exaggerated, grown twinned crystals. The distinctive morphology of the SnO2-R-based sensor, with its specific pore structure and an increased number of oxygen-related defects associated with the powder preparation process and detected at the sensor surface by XPS analysis, contributed to excellent humidity sensing performances at room temperature, comprised of a low hysteresis error (3.7%), sensitivity of 406.8 kΩ/RH% and swift response/recovery speed (4 s/6 s).",
publisher = "MDPI",
journal = "Molecules",
title = "KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed",
number = "4",
pages = "1754",
volume = "28",
doi = "10.3390/molecules28041754"
}

Vojisavljević, K., Savić, S. M., Počuča-Nešić, M., Hodžić, A., Kriechbaum, M., Ribić, V., Rečnik, A., Mitrović, J., Branković, G.,& Djokic, V.. (2023). KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed. in Molecules
MDPI., 28(4), 1754.
https://doi.org/10.3390/molecules28041754

Vojisavljević K, Savić SM, Počuča-Nešić M, Hodžić A, Kriechbaum M, Ribić V, Rečnik A, Mitrović J, Branković G, Djokic V. KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed. in Molecules. 2023;28(4):1754.
doi:10.3390/molecules28041754 .

Vojisavljević, Katarina, Savić, Slavica M., Počuča-Nešić, Milica, Hodžić, Aden, Kriechbaum, Manfred, Ribić, Vesna, Rečnik, Aleksander, Mitrović, Jelena, Branković, Goran, Djokic, Veljko, "KIT-5-Assisted Synthesis of Mesoporous SnO2 for High-Performance Humidity Sensors with a Swift Response/Recovery Speed" in Molecules, 28, no. 4 (2023):1754,
https://doi.org/10.3390/molecules28041754 . .

TY  - CONF
AU  - Milojković, Natalija
AU  - Simović, Bojana
AU  - Žunić, Milan
AU  - Dapčević, Aleksandra
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2196
AB  - Titanium dioxide exists in three different crystalline forms: anatase, rutile, and brookite.
It is well known that on heating, anatase and brookite can be easily transformed to rutile
which is considered as the most stable phase [1]. The aim of this study was to investigate
the influence of different dopants on anatase-rutile phase transition. Doped TiO2 samples
(TiO2-M, M = V, Mn, and Cu) containing 5 at% of the dopant were prepared by mixing
anatase and appropriate oxide (V2O5, MnO2, and CuO) in agate mortar for 30 min. In
order to determine the heat treatment conditions, TG/DTA analysis of the samples was
performed. Finally, mixed powders as well as the pure anatase phase (TiO2) were heat
treated at 700 °C for 3 h. XRD analysis was performed to estimate the phase composition,
unit cell parameters, and crystallite sizes. Rutile was formed in all samples: 2.8 wt% in
TiO2, 25.5 wt% in TiO2-Mn, 75.8 wt% in TiO2-V, and 95.2 wt% in TiO2-Cu. In TiO2-
Mn, TiO2-V, and TiO2, anatase was present beside rutile, while in the case of TiO2-Cu
4.8 wt% of the unreacted CuO was found. Obtained results revealed that all the dopants
accelerated anatase-rutile phase transition in the following order: Cu2+ > V5+ > Mn4+. It
is well known that defects are the driving force for the anatase-rutile phase transition and
since Ti4+ and Mn4+ are isovalent, no new defects were formed by incorporating Mn4+
ions into TiO2 lattice. This resulted in the least amount of rutile in TiO2-Mn comparing
to TiO2-V and TiO2-Cu where new defects were probably formed. As no initial oxides
were found in TiO2-Mn and TiO2-V, it can be concluded that Mn4+ and V5+ ions were
incorporated into the anatase lattice. On the other hand, in the case of TiO2-Cu, even 4.8
wt% of initial CuO was found. The detected residue of CuO can be explained by the fact
that the ionic radius of Cu2+ for an octahedral environment (0.870 Å) is much larger than
that of Ti4+ (0.745 Å), unlike those for Mn4+ (0.670 Å) and V5+ (0.680 Å). Although
almost all introduced quantity of CuO, i.e. 96 %, was found in TiO2-Cu, a small amount
was surely necessary to cause the anatase-rutile phase transition. According to calculated
crystallite sizes which were in the range of 55 – 90 nm, nanocrystalline samples were
prepared.
1. P. I. Gouma, M. J. Mills J. Am. Ceram. Soc. 2001, 84 (3) 619–622.
PB  - Serbian Chemical Society and Serbian Young Chemists’ Club, Belgrade, Serbia
C3  - 9th Conference of Young Chemists of Serbia, Novi Sad, Serbia
T1  - The influence of dopants on anatase-rutile phase transition
SP  - 164
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2196
ER  - 

@conference{
author = "Milojković, Natalija and Simović, Bojana and Žunić, Milan and Dapčević, Aleksandra",
year = "2023",
abstract = "Titanium dioxide exists in three different crystalline forms: anatase, rutile, and brookite.
It is well known that on heating, anatase and brookite can be easily transformed to rutile
which is considered as the most stable phase [1]. The aim of this study was to investigate
the influence of different dopants on anatase-rutile phase transition. Doped TiO2 samples
(TiO2-M, M = V, Mn, and Cu) containing 5 at% of the dopant were prepared by mixing
anatase and appropriate oxide (V2O5, MnO2, and CuO) in agate mortar for 30 min. In
order to determine the heat treatment conditions, TG/DTA analysis of the samples was
performed. Finally, mixed powders as well as the pure anatase phase (TiO2) were heat
treated at 700 °C for 3 h. XRD analysis was performed to estimate the phase composition,
unit cell parameters, and crystallite sizes. Rutile was formed in all samples: 2.8 wt% in
TiO2, 25.5 wt% in TiO2-Mn, 75.8 wt% in TiO2-V, and 95.2 wt% in TiO2-Cu. In TiO2-
Mn, TiO2-V, and TiO2, anatase was present beside rutile, while in the case of TiO2-Cu
4.8 wt% of the unreacted CuO was found. Obtained results revealed that all the dopants
accelerated anatase-rutile phase transition in the following order: Cu2+ > V5+ > Mn4+. It
is well known that defects are the driving force for the anatase-rutile phase transition and
since Ti4+ and Mn4+ are isovalent, no new defects were formed by incorporating Mn4+
ions into TiO2 lattice. This resulted in the least amount of rutile in TiO2-Mn comparing
to TiO2-V and TiO2-Cu where new defects were probably formed. As no initial oxides
were found in TiO2-Mn and TiO2-V, it can be concluded that Mn4+ and V5+ ions were
incorporated into the anatase lattice. On the other hand, in the case of TiO2-Cu, even 4.8
wt% of initial CuO was found. The detected residue of CuO can be explained by the fact
that the ionic radius of Cu2+ for an octahedral environment (0.870 Å) is much larger than
that of Ti4+ (0.745 Å), unlike those for Mn4+ (0.670 Å) and V5+ (0.680 Å). Although
almost all introduced quantity of CuO, i.e. 96 %, was found in TiO2-Cu, a small amount
was surely necessary to cause the anatase-rutile phase transition. According to calculated
crystallite sizes which were in the range of 55 – 90 nm, nanocrystalline samples were
prepared.
1. P. I. Gouma, M. J. Mills J. Am. Ceram. Soc. 2001, 84 (3) 619–622.",
publisher = "Serbian Chemical Society and Serbian Young Chemists’ Club, Belgrade, Serbia",
journal = "9th Conference of Young Chemists of Serbia, Novi Sad, Serbia",
title = "The influence of dopants on anatase-rutile phase transition",
pages = "164",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2196"
}

Milojković, N., Simović, B., Žunić, M.,& Dapčević, A.. (2023). The influence of dopants on anatase-rutile phase transition. in 9th Conference of Young Chemists of Serbia, Novi Sad, Serbia
Serbian Chemical Society and Serbian Young Chemists’ Club, Belgrade, Serbia., 164.
https://hdl.handle.net/21.15107/rcub_rimsi_2196

Milojković N, Simović B, Žunić M, Dapčević A. The influence of dopants on anatase-rutile phase transition. in 9th Conference of Young Chemists of Serbia, Novi Sad, Serbia. 2023;:164.
https://hdl.handle.net/21.15107/rcub_rimsi_2196 .

Milojković, Natalija, Simović, Bojana, Žunić, Milan, Dapčević, Aleksandra, "The influence of dopants on anatase-rutile phase transition" in 9th Conference of Young Chemists of Serbia, Novi Sad, Serbia (2023):164,
https://hdl.handle.net/21.15107/rcub_rimsi_2196 .

TY  - CONF
AU  - Milojković, Natalija
AU  - Simović, Bojana
AU  - Žunić, Milan
AU  - Radovanovic, Lidija
AU  - Dapčević, Aleksandra
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2146
AB  - It is well known that titanium dioxide is usually used as a photocatalyst due to its
nontoxicity, low cost, and stability. Conductive polymer, polypyrrole (PPy) is also
appropriate for photocatalytic application being stable and easy to synthesize. The aim of
this study was to obtain TiO2/PPy composites reaching higher photocatalytic efficiency
compared to pure TiO2. Therefore, TiO2 was synthesized by the hydrothermal route,
while PPy was obtained by the chemical oxidative polymerization method. TiO2/x% PPy
nanocomposites (x = 0, 0.5, 1, 1.5, 3, 5 wt.%) were prepared by hand-mixing of powders
in agate mortar for 30 min in order to find the optimal PPy content. Obtained materials
were characterized by XRD, FTIR, TG/DSC, FESEM, and UV-Vis methods while their
photocatalytic activity was estimated towards degradation of Reactive Orange 16 dye
(RO16). A kinetic study was performed and a detailed mechanism of RO16
photocatalytic degradation in the presence of TiO2/PPy composites was proposed based
on scavenger tests. The results showed that, despite PPy addition, TiO2 was present in
anatase form in all samples with sufficiently small crystallites (around 26 nm) and
preserved structure with no significant deviations in unit cell parameters. The band gap
energy decreased with increasing of PPy content, from 3.14 eV for pure TiO2 to 2.94 eV
for TiO2/5% PPy. All the obtained nanocomposites demonstrated higher photocatalytic
activity than pure TiO2, whereby TiO2/1% PPy nanocomposite was the most efficient by
degrading 99.6% of the dye for 105 min under simulated solar light. Therefore, the
amount of 1 wt.% should be consider as optimal amount of PPy in a composite. It is
established that the photodegradation of RO16 using TiO2/PPy nanocomposites follows
pseudo-first kinetic order. RO16 photocatalytic degradation mechanism in the presence
of TiO2/PPy nanocomposites can be well described by direct Z-scheme heterojunction
which has never been reported for TiO2/PPy system.
PB  - Faculty of Technology, University of Novi Sad, Serbia
C3  - 15th ECerS Conference for Young Scientists in Ceramics, Novi Sad, Serbia
T1  - Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light
SP  - 87
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2146
ER  - 

@conference{
author = "Milojković, Natalija and Simović, Bojana and Žunić, Milan and Radovanovic, Lidija and Dapčević, Aleksandra",
year = "2023",
abstract = "It is well known that titanium dioxide is usually used as a photocatalyst due to its
nontoxicity, low cost, and stability. Conductive polymer, polypyrrole (PPy) is also
appropriate for photocatalytic application being stable and easy to synthesize. The aim of
this study was to obtain TiO2/PPy composites reaching higher photocatalytic efficiency
compared to pure TiO2. Therefore, TiO2 was synthesized by the hydrothermal route,
while PPy was obtained by the chemical oxidative polymerization method. TiO2/x% PPy
nanocomposites (x = 0, 0.5, 1, 1.5, 3, 5 wt.%) were prepared by hand-mixing of powders
in agate mortar for 30 min in order to find the optimal PPy content. Obtained materials
were characterized by XRD, FTIR, TG/DSC, FESEM, and UV-Vis methods while their
photocatalytic activity was estimated towards degradation of Reactive Orange 16 dye
(RO16). A kinetic study was performed and a detailed mechanism of RO16
photocatalytic degradation in the presence of TiO2/PPy composites was proposed based
on scavenger tests. The results showed that, despite PPy addition, TiO2 was present in
anatase form in all samples with sufficiently small crystallites (around 26 nm) and
preserved structure with no significant deviations in unit cell parameters. The band gap
energy decreased with increasing of PPy content, from 3.14 eV for pure TiO2 to 2.94 eV
for TiO2/5% PPy. All the obtained nanocomposites demonstrated higher photocatalytic
activity than pure TiO2, whereby TiO2/1% PPy nanocomposite was the most efficient by
degrading 99.6% of the dye for 105 min under simulated solar light. Therefore, the
amount of 1 wt.% should be consider as optimal amount of PPy in a composite. It is
established that the photodegradation of RO16 using TiO2/PPy nanocomposites follows
pseudo-first kinetic order. RO16 photocatalytic degradation mechanism in the presence
of TiO2/PPy nanocomposites can be well described by direct Z-scheme heterojunction
which has never been reported for TiO2/PPy system.",
publisher = "Faculty of Technology, University of Novi Sad, Serbia",
journal = "15th ECerS Conference for Young Scientists in Ceramics, Novi Sad, Serbia",
title = "Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light",
pages = "87",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2146"
}

Milojković, N., Simović, B., Žunić, M., Radovanovic, L.,& Dapčević, A.. (2023). Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light. in 15th ECerS Conference for Young Scientists in Ceramics, Novi Sad, Serbia
Faculty of Technology, University of Novi Sad, Serbia., 87.
https://hdl.handle.net/21.15107/rcub_rimsi_2146

Milojković N, Simović B, Žunić M, Radovanovic L, Dapčević A. Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light. in 15th ECerS Conference for Young Scientists in Ceramics, Novi Sad, Serbia. 2023;:87.
https://hdl.handle.net/21.15107/rcub_rimsi_2146 .

Milojković, Natalija, Simović, Bojana, Žunić, Milan, Radovanovic, Lidija, Dapčević, Aleksandra, "Photocatalytic degradation of Reactive Orange 16 dye using TiO2/PPy nanocomposites under simulated solar light" in 15th ECerS Conference for Young Scientists in Ceramics, Novi Sad, Serbia (2023):87,
https://hdl.handle.net/21.15107/rcub_rimsi_2146 .

TY  - CONF
AU  - Milojković, Natalija
AU  - Simović, Bojana
AU  - Žunić, Milan
AU  - Dapčević, Aleksandra
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2001
AB  - It is well known that TiO2-based Degussa P-25 is the mostly used comer-cial photocatalyst and that TiO2 exists in three crystalline modifications: tetragonal anatase (I41/amd) and rutile (P42/mnm) and orthorhombic brookite (Pbca). On heating, anatase and brookite, as metastable phases, can be transformed to rutile. The aim of this work was to investigate the effect of different dopants on anatase-rutile phase transition and thus on their photocatalytic behavior. For that matter, samples TiO2 M (M = Cu, Mn and V) having 5 at.% of dopants were prepared by 30 minutes hand-mixing of anatase and corresponding oxide (CuO, MnO2 and V2O5) powders in an agate mortar following by heat treatment at 700 °C for 3 h. The powder of pure anatase phase was also treated at same conditions. TG/DTA was used to define thermal treatment, and the obtained samples were characterized by powder XRD method in order to reach phase compositions, unit cell parameters and crystallite sizes. Since in the case of undoped anatase only 3 wt.% of rutile was formed, the presence of dopants accelerated phase transition: 26 and 76 wt.% of rutile was obtained beside anatase in TiO2 Mn and TiO2 V, respectively, while complete anatase to rutile phase transition occured in TiO2-Cu. The least rutile quantity in TiO2-Mn is related to the isovalency of Ti4+ and Мn4+ meaning that the incorporation of Мn4+ in TiO2 is not followed by the formation of new defects, which are driving force for phase transition, as in the case of TiO2 Cu. About 5 wt.% of the unreacted CuO was found in TiO2 Cu, which is almost all introduced quantity of CuO. This can be related to the fact that the ionic radius of Cu2+ for octahedral environment (0.870 Å) is larger than that of Ti4+ (0.745 Å). As a result, Cu2+ ions can hardly be incorporated in TiO2 comparing to smaller Мn4+ (0.670 Å) and V5+ (0.680 Å) although a small amount of Cu2+ surely was necessary to cause phase transition. Since no residues of initial oxides were found in TiO2 Mn and TiO2 V, it can be concluded that these metal ions were incorporated into anatase lattice. By comparing the calculated unit cell parameters of anatase mutually, the shrinkage along c-axis was revealed meaning the shortening of bond distances between М–Оapical. The photocatalytic activity of all synthesized samples will be tested since nanocrystalline samples were obtained according to determined crystallite sizes (55–90 nm).
AB  - Degussa P-25 је фотокатализатор на бази титан(IV)-оксида, који се најчешће користи у индустрији. TiO2 се јавља у три полиморфне модификације: тетрагоналним анатасу (I41/amd) и рутилу (P42/mnm) и ромбичном брукиту (Pbca). Анатас и брукит, као метастабилне фазе, приликом загревања прелазе у рутил. Циљ овог истраживања је испитивање утицаја различитих допаната на фазни прелаз анатаса у рутил као и на фотокаталитичка својства. Узорци TiO2-M (M = Cu, Mn и V), који садрже 5 at.% допанта, припремљени су термохемијском реакцијом на 700 °C током 3 h између хомогенизованих прахова анатаса и одговарајућих оксида (CuO, MnO2 и V2O5). Ради поређења, прах чистог анатаса је термички третиран под истим условима. Помоћу ТГ/ДТ анализе дефинисани су услови термичког третмана, док су добијени узорци окарактерисани рендгенском дифракцијом на поликристалном материјалу да би се одредио фазни састав, параметри јединичних ћелија и величина кристалита. У случају недопираног анатаса настало је свега 3 mas.% рутила, 26 и 76 mas.% рутила добијено је у TiO2 Mn и TiO2 V, редом, док се потпуни фазни прелаз анатас–рутил одиграо у TiO2 Cu. Ово значи да присуство допанта убрзава фазну трансформацију. Најмања количина рутила у TiO2 Mn може се објаснити изовалентним Ti4+ и Мn4+, тј. да уградња Мn4+ у TiO2 није праћена настанком нових дефеката који представљају вучну силу за одигравање фазног прелаза, као што је то случај код TiO2 Cu. Око 5 mas.% непрореаговалог CuO (готово почетна количина) заостало је у TiO2 Cu, зато што се Cu2+-јони теже уграђују у решетку TiO2 због већег радијуса Cu2+ у октаедарском окружењу (0,870 Å) од радијуса Ti4+ (0,745 Å), за разлику од мањих Мn4+ (0,670 Å) и V5+ (0,680 Å). Ипак, сигурно је мала количина Cu2+-јона била неопходна како би иницирала фазни прелаз. Како у TiO2 Mn и TiO2 V нису присутни остаци полазних оксида, може се закључити да су се ови јони метала уградили у решетку анатаса. Међусобним поређењем параметара јединичне ћелије анатаса, уочено је скраћење дуж c-осе, што указује на скраћење дужина веза М–Оапикални. Израчуната величина кристалита (55–90 nm) показала је да су сви добијени узорци нанокристални, па ће њихова фотокаталитичка својства бити испитана.
PB  - Serbian Crystallographic Society, Belgrade, Serbia
C3  - 28th Conference of the Serbian Crystallographic Society, Čačak, Serbia
T1  - Effect of dopants on anatase structure
SP  - 24
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2001
ER  - 

@conference{
author = "Milojković, Natalija and Simović, Bojana and Žunić, Milan and Dapčević, Aleksandra",
year = "2023",
abstract = "It is well known that TiO2-based Degussa P-25 is the mostly used comer-cial photocatalyst and that TiO2 exists in three crystalline modifications: tetragonal anatase (I41/amd) and rutile (P42/mnm) and orthorhombic brookite (Pbca). On heating, anatase and brookite, as metastable phases, can be transformed to rutile. The aim of this work was to investigate the effect of different dopants on anatase-rutile phase transition and thus on their photocatalytic behavior. For that matter, samples TiO2 M (M = Cu, Mn and V) having 5 at.% of dopants were prepared by 30 minutes hand-mixing of anatase and corresponding oxide (CuO, MnO2 and V2O5) powders in an agate mortar following by heat treatment at 700 °C for 3 h. The powder of pure anatase phase was also treated at same conditions. TG/DTA was used to define thermal treatment, and the obtained samples were characterized by powder XRD method in order to reach phase compositions, unit cell parameters and crystallite sizes. Since in the case of undoped anatase only 3 wt.% of rutile was formed, the presence of dopants accelerated phase transition: 26 and 76 wt.% of rutile was obtained beside anatase in TiO2 Mn and TiO2 V, respectively, while complete anatase to rutile phase transition occured in TiO2-Cu. The least rutile quantity in TiO2-Mn is related to the isovalency of Ti4+ and Мn4+ meaning that the incorporation of Мn4+ in TiO2 is not followed by the formation of new defects, which are driving force for phase transition, as in the case of TiO2 Cu. About 5 wt.% of the unreacted CuO was found in TiO2 Cu, which is almost all introduced quantity of CuO. This can be related to the fact that the ionic radius of Cu2+ for octahedral environment (0.870 Å) is larger than that of Ti4+ (0.745 Å). As a result, Cu2+ ions can hardly be incorporated in TiO2 comparing to smaller Мn4+ (0.670 Å) and V5+ (0.680 Å) although a small amount of Cu2+ surely was necessary to cause phase transition. Since no residues of initial oxides were found in TiO2 Mn and TiO2 V, it can be concluded that these metal ions were incorporated into anatase lattice. By comparing the calculated unit cell parameters of anatase mutually, the shrinkage along c-axis was revealed meaning the shortening of bond distances between М–Оapical. The photocatalytic activity of all synthesized samples will be tested since nanocrystalline samples were obtained according to determined crystallite sizes (55–90 nm)., Degussa P-25 је фотокатализатор на бази титан(IV)-оксида, који се најчешће користи у индустрији. TiO2 се јавља у три полиморфне модификације: тетрагоналним анатасу (I41/amd) и рутилу (P42/mnm) и ромбичном брукиту (Pbca). Анатас и брукит, као метастабилне фазе, приликом загревања прелазе у рутил. Циљ овог истраживања је испитивање утицаја различитих допаната на фазни прелаз анатаса у рутил као и на фотокаталитичка својства. Узорци TiO2-M (M = Cu, Mn и V), који садрже 5 at.% допанта, припремљени су термохемијском реакцијом на 700 °C током 3 h између хомогенизованих прахова анатаса и одговарајућих оксида (CuO, MnO2 и V2O5). Ради поређења, прах чистог анатаса је термички третиран под истим условима. Помоћу ТГ/ДТ анализе дефинисани су услови термичког третмана, док су добијени узорци окарактерисани рендгенском дифракцијом на поликристалном материјалу да би се одредио фазни састав, параметри јединичних ћелија и величина кристалита. У случају недопираног анатаса настало је свега 3 mas.% рутила, 26 и 76 mas.% рутила добијено је у TiO2 Mn и TiO2 V, редом, док се потпуни фазни прелаз анатас–рутил одиграо у TiO2 Cu. Ово значи да присуство допанта убрзава фазну трансформацију. Најмања количина рутила у TiO2 Mn може се објаснити изовалентним Ti4+ и Мn4+, тј. да уградња Мn4+ у TiO2 није праћена настанком нових дефеката који представљају вучну силу за одигравање фазног прелаза, као што је то случај код TiO2 Cu. Око 5 mas.% непрореаговалог CuO (готово почетна количина) заостало је у TiO2 Cu, зато што се Cu2+-јони теже уграђују у решетку TiO2 због већег радијуса Cu2+ у октаедарском окружењу (0,870 Å) од радијуса Ti4+ (0,745 Å), за разлику од мањих Мn4+ (0,670 Å) и V5+ (0,680 Å). Ипак, сигурно је мала количина Cu2+-јона била неопходна како би иницирала фазни прелаз. Како у TiO2 Mn и TiO2 V нису присутни остаци полазних оксида, може се закључити да су се ови јони метала уградили у решетку анатаса. Међусобним поређењем параметара јединичне ћелије анатаса, уочено је скраћење дуж c-осе, што указује на скраћење дужина веза М–Оапикални. Израчуната величина кристалита (55–90 nm) показала је да су сви добијени узорци нанокристални, па ће њихова фотокаталитичка својства бити испитана.",
publisher = "Serbian Crystallographic Society, Belgrade, Serbia",
journal = "28th Conference of the Serbian Crystallographic Society, Čačak, Serbia",
title = "Effect of dopants on anatase structure",
pages = "24",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2001"
}

Milojković, N., Simović, B., Žunić, M.,& Dapčević, A.. (2023). Effect of dopants on anatase structure. in 28th Conference of the Serbian Crystallographic Society, Čačak, Serbia
Serbian Crystallographic Society, Belgrade, Serbia., 24.
https://hdl.handle.net/21.15107/rcub_rimsi_2001

Milojković N, Simović B, Žunić M, Dapčević A. Effect of dopants on anatase structure. in 28th Conference of the Serbian Crystallographic Society, Čačak, Serbia. 2023;:24.
https://hdl.handle.net/21.15107/rcub_rimsi_2001 .

Milojković, Natalija, Simović, Bojana, Žunić, Milan, Dapčević, Aleksandra, "Effect of dopants on anatase structure" in 28th Conference of the Serbian Crystallographic Society, Čačak, Serbia (2023):24,
https://hdl.handle.net/21.15107/rcub_rimsi_2001 .

TY  - CONF
AU  - Simović, Bojana
AU  - Radovanovic, Zeljko
AU  - Branković, Goran
AU  - Dapčević, Aleksandra
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1991
AB  - In this work, the decoration of noble metal nanoparticles on a semiconductor
surface was used as a strategy to reach strong visible light absorption and efficient
electron-hole separation to enhance the photocatalytic activity of ZnO.
The Ag-modified ZnO nanopowders were obtained by the green synthesis. Zinc
acetate dihydrate with different silver nitrate content (0, 0.75, 1.5 and 3 mol%) was
dissolved in ethylene glycol in the presence of chitosan. The obtained mixtures in
the form of gel were heated at 150 °C for 2 h and subsequently calcined at 400 °C
for 1 h. The obtained samples were characterized by XRPD, FESEM, HRTEM, and
UV-vis techniques while the photocatalytic efficiency was tested by monitoring the
degradation of textile dyes Reactive Orange 16 (RO16), Acid Green 25 (AG25),
Mordant Blue 9 (MB9), and Ethyl Violet (EV) then compared with the commercial
ZnO nanopowder.
The results showed that the Ag/ZnO samples consisted of ZnO nanoparticles
with an average crystallite size of about 25 nm and Ag (20–30 nm) distributed on
the surface of ZnO. The uniformity in size and nearly spherical shape of ZnO
nanoparticles, forming various forms of agglomerates, were observed. Compared to
both, the unmodified and commercial ZnO, all the prepared Ag/ZnO composites
showed a broad band in the visible region at 500 nm, resulting in a narrowing of the
band gap. This band confirms the surface plasmon resonance of the metallic Ag
nanoparticles, since they can absorb visible light and activate the photocatalyst in
the visible spectrum.
All the obtained nanopowders showed higher adsorption power and
photocatalytic activity in the degradation of RO16 dye than the commercial ZnO.
The powder with 1.5 mol% of Ag had the highest photocatalytic efficiency as a
consequence of smaller Ag particles and their good distribution, as well as the
narrowest band gap. This means that the photocatalytic activity does not depend on
the Ag content only and that the size and distribution of the metal particles play an
important role. Since the ZnO with 1.5 mol% of Ag demonstrated the best
photocatalytic activity, the same sample was tested for diverse dyes and the high
photocatalytic efficiency was also confirmed by testing on AG25, MB9 and EV
dyes.
PB  - Institut za multidisciplinarna istraživanja, Belgrade, Serbia
C3  - 7th Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia
T1  - Ag/ZnO NANOCOMPOSITES FOR PHOTOCATALYTIC APPLICATION
SP  - 106
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1991
ER  - 

@conference{
author = "Simović, Bojana and Radovanovic, Zeljko and Branković, Goran and Dapčević, Aleksandra",
year = "2023",
abstract = "In this work, the decoration of noble metal nanoparticles on a semiconductor
surface was used as a strategy to reach strong visible light absorption and efficient
electron-hole separation to enhance the photocatalytic activity of ZnO.
The Ag-modified ZnO nanopowders were obtained by the green synthesis. Zinc
acetate dihydrate with different silver nitrate content (0, 0.75, 1.5 and 3 mol%) was
dissolved in ethylene glycol in the presence of chitosan. The obtained mixtures in
the form of gel were heated at 150 °C for 2 h and subsequently calcined at 400 °C
for 1 h. The obtained samples were characterized by XRPD, FESEM, HRTEM, and
UV-vis techniques while the photocatalytic efficiency was tested by monitoring the
degradation of textile dyes Reactive Orange 16 (RO16), Acid Green 25 (AG25),
Mordant Blue 9 (MB9), and Ethyl Violet (EV) then compared with the commercial
ZnO nanopowder.
The results showed that the Ag/ZnO samples consisted of ZnO nanoparticles
with an average crystallite size of about 25 nm and Ag (20–30 nm) distributed on
the surface of ZnO. The uniformity in size and nearly spherical shape of ZnO
nanoparticles, forming various forms of agglomerates, were observed. Compared to
both, the unmodified and commercial ZnO, all the prepared Ag/ZnO composites
showed a broad band in the visible region at 500 nm, resulting in a narrowing of the
band gap. This band confirms the surface plasmon resonance of the metallic Ag
nanoparticles, since they can absorb visible light and activate the photocatalyst in
the visible spectrum.
All the obtained nanopowders showed higher adsorption power and
photocatalytic activity in the degradation of RO16 dye than the commercial ZnO.
The powder with 1.5 mol% of Ag had the highest photocatalytic efficiency as a
consequence of smaller Ag particles and their good distribution, as well as the
narrowest band gap. This means that the photocatalytic activity does not depend on
the Ag content only and that the size and distribution of the metal particles play an
important role. Since the ZnO with 1.5 mol% of Ag demonstrated the best
photocatalytic activity, the same sample was tested for diverse dyes and the high
photocatalytic efficiency was also confirmed by testing on AG25, MB9 and EV
dyes.",
publisher = "Institut za multidisciplinarna istraživanja, Belgrade, Serbia",
journal = "7th Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia",
title = "Ag/ZnO NANOCOMPOSITES FOR PHOTOCATALYTIC APPLICATION",
pages = "106",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1991"
}

Simović, B., Radovanovic, Z., Branković, G.,& Dapčević, A.. (2023). Ag/ZnO NANOCOMPOSITES FOR PHOTOCATALYTIC APPLICATION. in 7th Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia
Institut za multidisciplinarna istraživanja, Belgrade, Serbia., 106.
https://hdl.handle.net/21.15107/rcub_rimsi_1991

Simović B, Radovanovic Z, Branković G, Dapčević A. Ag/ZnO NANOCOMPOSITES FOR PHOTOCATALYTIC APPLICATION. in 7th Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia. 2023;:106.
https://hdl.handle.net/21.15107/rcub_rimsi_1991 .

Simović, Bojana, Radovanovic, Zeljko, Branković, Goran, Dapčević, Aleksandra, "Ag/ZnO NANOCOMPOSITES FOR PHOTOCATALYTIC APPLICATION" in 7th Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia (2023):106,
https://hdl.handle.net/21.15107/rcub_rimsi_1991 .

TY  - CONF
AU  - Milojković, Natalija
AU  - Simović, Bojana
AU  - Žunić, Milan
AU  - Radovanovic, Lidija
AU  - Dapčević, Aleksandra
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1988
AB  - Titan(IV)-oksid je jedan od najčešće korišćenih fotokatalizatora, dok za polipirol (PPy)
postoje potvrde da je pogodan za ovu primenu. Cilj ovog rada bio je dobijanje kompozita
TiO2/PPy sa boljom fotokatalitičkom aktivnosti u odnosu na TiO2. Kako bi se optimizovao
sadržaj PPy u kompozitu, sintetisani su uzorci TiO2/x%PPy (x = 0, 0,5, 1, 1,5, 3, 5 mas.%),
koji su okarakterisani TG/DTA, XRD, FTIR, FESEM i UV-Vis metodama, dok su njihova
fotokatalitička svojstva ispitana kroz razgradnju tekstilne boje RO16. Nanokristalni TiO2 je
dobijen u obliku anatasa veličine kristalita oko 2 nm, dok su izračunati parametri
jedinične ćelije potvrdili da je kristalna struktura anatasa ostala nepromenjena nakon
dodatka PPy. Gotovo svi uzorci (izuzev TiO2/3%PPy) su fotokatalitički aktivniji od TiO2,
dok je TiO2/1%PPy pokazao najizraženiju fotokatalitičku aktivnost razgradivši 9 % boje
nakon 75 min.
AB  - Titanium(IV) oxide is one of the most used photocatalysts while polypyrrole (PPy) is a
promising material for photocatalytic application. The aim of this work was to obtain
TiO2/PPy composites exhibiting higher photocatalytic activity than TiO2. In order to
determine the optimal PPy content in a composite, TiO2/x%PPy (x = 0, 0.5, 1, 1.5, 3, 5
wt.%) samples were synthesized and characterized by TG/DTA, XRD, FTIR, FESEM and
UV-Vis methods, while the photocatalytic behavior was examined towards the degradation
of the textile dye RO16. Nanocrystalline TiO2 was obtained in anatase form with crystallite
size around 26 nm and preserved anatase crystal structure despite the addition of PPy
according to the calculated unit cell parameters. Almost all samples (except TiO2/3%PPy)
showed better photocatalytic activity than TiO2 while the best photocatalytic activity was
demonstrated by TiO2/1%PPy which degraded 98 % of the dye after 75 min.
PB  - Srpsko hemijsko društvo, Beograd
C3  - 59th Meeting of the Serbian Chemical Society, Novi Sad, Serbia, Book of Abstracts
T1  - TiO2/PPy nanocomposites for photocatalytic application
SP  - 144
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1988
ER  - 

@conference{
author = "Milojković, Natalija and Simović, Bojana and Žunić, Milan and Radovanovic, Lidija and Dapčević, Aleksandra",
year = "2023",
abstract = "Titan(IV)-oksid je jedan od najčešće korišćenih fotokatalizatora, dok za polipirol (PPy)
postoje potvrde da je pogodan za ovu primenu. Cilj ovog rada bio je dobijanje kompozita
TiO2/PPy sa boljom fotokatalitičkom aktivnosti u odnosu na TiO2. Kako bi se optimizovao
sadržaj PPy u kompozitu, sintetisani su uzorci TiO2/x%PPy (x = 0, 0,5, 1, 1,5, 3, 5 mas.%),
koji su okarakterisani TG/DTA, XRD, FTIR, FESEM i UV-Vis metodama, dok su njihova
fotokatalitička svojstva ispitana kroz razgradnju tekstilne boje RO16. Nanokristalni TiO2 je
dobijen u obliku anatasa veličine kristalita oko 2 nm, dok su izračunati parametri
jedinične ćelije potvrdili da je kristalna struktura anatasa ostala nepromenjena nakon
dodatka PPy. Gotovo svi uzorci (izuzev TiO2/3%PPy) su fotokatalitički aktivniji od TiO2,
dok je TiO2/1%PPy pokazao najizraženiju fotokatalitičku aktivnost razgradivši 9 % boje
nakon 75 min., Titanium(IV) oxide is one of the most used photocatalysts while polypyrrole (PPy) is a
promising material for photocatalytic application. The aim of this work was to obtain
TiO2/PPy composites exhibiting higher photocatalytic activity than TiO2. In order to
determine the optimal PPy content in a composite, TiO2/x%PPy (x = 0, 0.5, 1, 1.5, 3, 5
wt.%) samples were synthesized and characterized by TG/DTA, XRD, FTIR, FESEM and
UV-Vis methods, while the photocatalytic behavior was examined towards the degradation
of the textile dye RO16. Nanocrystalline TiO2 was obtained in anatase form with crystallite
size around 26 nm and preserved anatase crystal structure despite the addition of PPy
according to the calculated unit cell parameters. Almost all samples (except TiO2/3%PPy)
showed better photocatalytic activity than TiO2 while the best photocatalytic activity was
demonstrated by TiO2/1%PPy which degraded 98 % of the dye after 75 min.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "59th Meeting of the Serbian Chemical Society, Novi Sad, Serbia, Book of Abstracts",
title = "TiO2/PPy nanocomposites for photocatalytic application",
pages = "144",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1988"
}

Milojković, N., Simović, B., Žunić, M., Radovanovic, L.,& Dapčević, A.. (2023). TiO2/PPy nanocomposites for photocatalytic application. in 59th Meeting of the Serbian Chemical Society, Novi Sad, Serbia, Book of Abstracts
Srpsko hemijsko društvo, Beograd., 144.
https://hdl.handle.net/21.15107/rcub_rimsi_1988

Milojković N, Simović B, Žunić M, Radovanovic L, Dapčević A. TiO2/PPy nanocomposites for photocatalytic application. in 59th Meeting of the Serbian Chemical Society, Novi Sad, Serbia, Book of Abstracts. 2023;:144.
https://hdl.handle.net/21.15107/rcub_rimsi_1988 .

Milojković, Natalija, Simović, Bojana, Žunić, Milan, Radovanovic, Lidija, Dapčević, Aleksandra, "TiO2/PPy nanocomposites for photocatalytic application" in 59th Meeting of the Serbian Chemical Society, Novi Sad, Serbia, Book of Abstracts (2023):144,
https://hdl.handle.net/21.15107/rcub_rimsi_1988 .

TY  - JOUR
AU  - Simović, Bojana
AU  - Radovanovic, Zeljko
AU  - Branković, Goran
AU  - Dapčević, Aleksandra
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1981
AB  - In this work, in order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%. The structural, microstructural, optical, textural, and photocatalytic properties of the hydrothermally obtained ZnO and CeO2/ZnO nanocomposites have been investigated by using the XRPD, FESEM, HRTEM/SAED, BET, and UV–Vis techniques. Detailed characterization revealed that CeO2, having spherical nanodots of about 5 nm with a large surface area, was distributed onto the ZnO surface, whose crystallites displayed a bimodal distribution, from nano-to micro-crystals. The morphology of ZnO is a combination of nanograins and microrods that further makes a 3-D tie-like morphology. The nanocomposite containing 5 mol% of CeO2 showed about 30% better photocatalytic efficiency in the degradation of Reactive Orange 16 dye compared to other samples under simulated solar radiation. In addition, the kinetics and mechanism of photocatalytic degradation were also proposed based on the photocatalytic activity and scavenger tests.
PB  - Elsevier Ltd
T2  - Materials Science in Semiconductor Processing
T1  - Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye
SP  - 107542
VL  - 162
DO  - 10.1016/j.mssp.2023.107542
ER  - 

@article{
author = "Simović, Bojana and Radovanovic, Zeljko and Branković, Goran and Dapčević, Aleksandra",
year = "2023",
abstract = "In this work, in order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%. The structural, microstructural, optical, textural, and photocatalytic properties of the hydrothermally obtained ZnO and CeO2/ZnO nanocomposites have been investigated by using the XRPD, FESEM, HRTEM/SAED, BET, and UV–Vis techniques. Detailed characterization revealed that CeO2, having spherical nanodots of about 5 nm with a large surface area, was distributed onto the ZnO surface, whose crystallites displayed a bimodal distribution, from nano-to micro-crystals. The morphology of ZnO is a combination of nanograins and microrods that further makes a 3-D tie-like morphology. The nanocomposite containing 5 mol% of CeO2 showed about 30% better photocatalytic efficiency in the degradation of Reactive Orange 16 dye compared to other samples under simulated solar radiation. In addition, the kinetics and mechanism of photocatalytic degradation were also proposed based on the photocatalytic activity and scavenger tests.",
publisher = "Elsevier Ltd",
journal = "Materials Science in Semiconductor Processing",
title = "Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye",
pages = "107542",
volume = "162",
doi = "10.1016/j.mssp.2023.107542"
}

Simović, B., Radovanovic, Z., Branković, G.,& Dapčević, A.. (2023). Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye. in Materials Science in Semiconductor Processing
Elsevier Ltd., 162, 107542.
https://doi.org/10.1016/j.mssp.2023.107542

Simović B, Radovanovic Z, Branković G, Dapčević A. Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye. in Materials Science in Semiconductor Processing. 2023;162:107542.
doi:10.1016/j.mssp.2023.107542 .

Simović, Bojana, Radovanovic, Zeljko, Branković, Goran, Dapčević, Aleksandra, "Hydrothermally synthesized CeO2/ZnO nanocomposite photocatalysts for the enhanced degradation of Reactive Orange 16 dye" in Materials Science in Semiconductor Processing, 162 (2023):107542,
https://doi.org/10.1016/j.mssp.2023.107542 . .

TY  - JOUR
AU  - Radovanović, Lidija
AU  - Radovanović, Zeljko
AU  - Simović, Bojana
AU  - Vasić (prev. Arsenović), Milica
AU  - Balanč, Bojana
AU  - Dapčević, Aleksandra
AU  - Dramićanin, Miroslav
AU  - Rogan, Jelena
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1891
AB  - A biphasic [Mn(dipya)(H2O)4](tpht)/{[Zn(dipya)(tpht)]•H2O}n complex material, I, (dipya = 2,2’-dipyridylamine, tpht2- = dianion of terephthalatic acid) was synthesized by ligand exchange reaction and characterized by XRPD and FTIR spectroscopy. A ZnO/ZnMn2O4 composite, II, has been prepared via thermal decomposition of precursor I in an air atmosphere at 450°C. XRPD, FTIR and FESEM analyses of II revealed the simultaneous presence of spherical nanoparticles of wurtzite ZnO and elongated nanoparticles of spinel ZnMn2O4. The specific surface area of II was determined by the BET method, whereas the volume and average size of the mesopores were calculated in accordance with the BJH method. The measurements of the mean size, polydispersity index and zeta potential showed colloidal instability of II. Two band gap values of 2.4 and 3.3 eV were determined using UV-Vis diffuse reflectance spectroscopy, while the measurements of photoluminescence revealed that II is active in the blue region of the visible spectrum. Testing of composite II as a pigmentary material showed that it can be used for the colouring of a ceramic glaze.
AB  - Двофазни [Mn(dipya)(H2O)4](tpht)/{[Zn(dipya)(tpht)]·H2O}n комплексни материјал, I,
(dipya = 2,2’-дипиридиламин, tpht2– = дианјон 1,4-бензендикарбоксилне киселине) синтетисан је реакцијом измене лиганада и окарактерисан XRPD мeтoдом и FTIR спектроскопијом. Композит ZnO/ZnMn2O4, II, добијен је термичком разградњом прекурcopa I у атмосфери ваздуха на 450 °C. XRPD мeтoдом, FTIR спектроскопијом и FESEM микроскопијом композита II утврђено је истовремено присуство сферних наночестица ZnO
вирцитне структуре и издужених наночестица ZnMn2O4 са структуром спинела. Специфична површина II одређена је BET методом, док су запремина и просечна величина мезопора израчунати у складу са BJH методом. Средња величина, индекс полидисперзије и цета потенцијал измерени су фотонском корелационом спектроскопијом и електрофоретским расејањем светлости и показали су нестабилност композита II. Вредности
ширине забрањене зоне 2,4 и 3,3 eV одређене су UV-Vis дифузно-рефлексионом спектроскопијом, док су мерења фотолуминесценције показала да је II активан у плавој области видљивог дела спектра. Испитивање композита II као пигментног материјала показало је да се може користити за бојење керамичке глазуре.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor
EP  - 325
IS  - 3
SP  - 313
VL  - 88
DO  - 10.2298/JSC221102090R
ER  - 

@article{
author = "Radovanović, Lidija and Radovanović, Zeljko and Simović, Bojana and Vasić (prev. Arsenović), Milica and Balanč, Bojana and Dapčević, Aleksandra and Dramićanin, Miroslav and Rogan, Jelena",
year = "2023",
abstract = "A biphasic [Mn(dipya)(H2O)4](tpht)/{[Zn(dipya)(tpht)]•H2O}n complex material, I, (dipya = 2,2’-dipyridylamine, tpht2- = dianion of terephthalatic acid) was synthesized by ligand exchange reaction and characterized by XRPD and FTIR spectroscopy. A ZnO/ZnMn2O4 composite, II, has been prepared via thermal decomposition of precursor I in an air atmosphere at 450°C. XRPD, FTIR and FESEM analyses of II revealed the simultaneous presence of spherical nanoparticles of wurtzite ZnO and elongated nanoparticles of spinel ZnMn2O4. The specific surface area of II was determined by the BET method, whereas the volume and average size of the mesopores were calculated in accordance with the BJH method. The measurements of the mean size, polydispersity index and zeta potential showed colloidal instability of II. Two band gap values of 2.4 and 3.3 eV were determined using UV-Vis diffuse reflectance spectroscopy, while the measurements of photoluminescence revealed that II is active in the blue region of the visible spectrum. Testing of composite II as a pigmentary material showed that it can be used for the colouring of a ceramic glaze., Двофазни [Mn(dipya)(H2O)4](tpht)/{[Zn(dipya)(tpht)]·H2O}n комплексни материјал, I,
(dipya = 2,2’-дипиридиламин, tpht2– = дианјон 1,4-бензендикарбоксилне киселине) синтетисан је реакцијом измене лиганада и окарактерисан XRPD мeтoдом и FTIR спектроскопијом. Композит ZnO/ZnMn2O4, II, добијен је термичком разградњом прекурcopa I у атмосфери ваздуха на 450 °C. XRPD мeтoдом, FTIR спектроскопијом и FESEM микроскопијом композита II утврђено је истовремено присуство сферних наночестица ZnO
вирцитне структуре и издужених наночестица ZnMn2O4 са структуром спинела. Специфична површина II одређена је BET методом, док су запремина и просечна величина мезопора израчунати у складу са BJH методом. Средња величина, индекс полидисперзије и цета потенцијал измерени су фотонском корелационом спектроскопијом и електрофоретским расејањем светлости и показали су нестабилност композита II. Вредности
ширине забрањене зоне 2,4 и 3,3 eV одређене су UV-Vis дифузно-рефлексионом спектроскопијом, док су мерења фотолуминесценције показала да је II активан у плавој области видљивог дела спектра. Испитивање композита II као пигментног материјала показало је да се може користити за бојење керамичке глазуре.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor",
pages = "325-313",
number = "3",
volume = "88",
doi = "10.2298/JSC221102090R"
}

Radovanović, L., Radovanović, Z., Simović, B., Vasić (prev. Arsenović), M., Balanč, B., Dapčević, A., Dramićanin, M.,& Rogan, J.. (2023). Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 88(3), 313-325.
https://doi.org/10.2298/JSC221102090R

Radovanović L, Radovanović Z, Simović B, Vasić (prev. Arsenović) M, Balanč B, Dapčević A, Dramićanin M, Rogan J. Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor. in Journal of the Serbian Chemical Society. 2023;88(3):313-325.
doi:10.2298/JSC221102090R .

Radovanović, Lidija, Radovanović, Zeljko, Simović, Bojana, Vasić (prev. Arsenović), Milica, Balanč, Bojana, Dapčević, Aleksandra, Dramićanin, Miroslav, Rogan, Jelena, "Structure and properties of ZnO/ZnMn2O4 composite obtained by thermal decomposition of terephthalate precursor" in Journal of the Serbian Chemical Society, 88, no. 3 (2023):313-325,
https://doi.org/10.2298/JSC221102090R . .

TY  - JOUR
AU  - Vujancevic, Jelena
AU  - Andričević, Pavao
AU  - Djokic, Veljko
AU  - Blagojevic, Vladimir
AU  - Pavlović, Vera
AU  - Ćirković, Jovana
AU  - Horvath, Endre
AU  - Forro, Laszlo
AU  - Karoui, Abdennaceur
AU  - Pavlović, Vladimir
AU  - Janackovic, Djordje
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2863
AB  - In this study, we report the influence of vanadium oxide (VO), as a photosensitive component, on the photoactivity of TiO2 nanotubes (TNTs). A series of TNTs of varying tube diameter were synthesized by the anodization of titanium foils at different voltages, while vanadium oxide was deposited on TNTs by wet chemical deposition. An improvement in the optical properties of nanotubes was observed after the deposition of vanadium oxide. An improvement in the optical properties (redshift in UV-Vis spectra) of TNTs and TNT/VO was noted. The photocatalytic activity was improved with increasing tube diameter, while it was weakened after the deposition of VO. Furthermore, photoactivity was investigated in photodiodes based on TNTs or TNT/VO and single crystals of CH3NH3PbI3. The photoelectric measurement revealed that different TNT diameters did not influence the I-V characteristic of the photodiodes, while the deposition of VO improved the photocurrent for smaller TNTs
PB  - MDPI
T2  - Catalysts
T1  - Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal
VL  - 13
DO  - 10.3390/catal13020352
ER  - 

@article{
author = "Vujancevic, Jelena and Andričević, Pavao and Djokic, Veljko and Blagojevic, Vladimir and Pavlović, Vera and Ćirković, Jovana and Horvath, Endre and Forro, Laszlo and Karoui, Abdennaceur and Pavlović, Vladimir and Janackovic, Djordje",
year = "2023",
abstract = "In this study, we report the influence of vanadium oxide (VO), as a photosensitive component, on the photoactivity of TiO2 nanotubes (TNTs). A series of TNTs of varying tube diameter were synthesized by the anodization of titanium foils at different voltages, while vanadium oxide was deposited on TNTs by wet chemical deposition. An improvement in the optical properties of nanotubes was observed after the deposition of vanadium oxide. An improvement in the optical properties (redshift in UV-Vis spectra) of TNTs and TNT/VO was noted. The photocatalytic activity was improved with increasing tube diameter, while it was weakened after the deposition of VO. Furthermore, photoactivity was investigated in photodiodes based on TNTs or TNT/VO and single crystals of CH3NH3PbI3. The photoelectric measurement revealed that different TNT diameters did not influence the I-V characteristic of the photodiodes, while the deposition of VO improved the photocurrent for smaller TNTs",
publisher = "MDPI",
journal = "Catalysts",
title = "Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal",
volume = "13",
doi = "10.3390/catal13020352"
}

Vujancevic, J., Andričević, P., Djokic, V., Blagojevic, V., Pavlović, V., Ćirković, J., Horvath, E., Forro, L., Karoui, A., Pavlović, V.,& Janackovic, D.. (2023). Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal. in Catalysts
MDPI., 13.
https://doi.org/10.3390/catal13020352

Vujancevic J, Andričević P, Djokic V, Blagojevic V, Pavlović V, Ćirković J, Horvath E, Forro L, Karoui A, Pavlović V, Janackovic D. Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal. in Catalysts. 2023;13.
doi:10.3390/catal13020352 .

Vujancevic, Jelena, Andričević, Pavao, Djokic, Veljko, Blagojevic, Vladimir, Pavlović, Vera, Ćirković, Jovana, Horvath, Endre, Forro, Laszlo, Karoui, Abdennaceur, Pavlović, Vladimir, Janackovic, Djordje, "Effect of the Deposition of Vanadium-Oxide on the Photocatalytic Activity of TiO2 Nanotubes and Its Photodiode Performance Interfaced with CH3NH3PbI3 Single Crystal" in Catalysts, 13 (2023),
https://doi.org/10.3390/catal13020352 . .

TY  - JOUR
AU  - Obradović, Maja
AU  - Lačnjevac, Uroš
AU  - Radmilovic, Vuk
AU  - Gavrilović-Wohlmuther, Aleksandra
AU  - Kovač, Janez
AU  - Rogan, Jelena R.
AU  - Radmilović, Velimir R.
AU  - Gojković, Snežana Lj.
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2782
AB  - Two types of Cu-modified Pd catalysts supported on high area carbon were prepared: Pd nanoparticles modified
with a sub-monolayer of underpotentially deposited Cu (Cu@Pd/C) and Pd-Cu alloy nanoparticles (Pd-Cu/C),
and examined for the ethanol oxidation reaction (EOR) in alkaline solution. The catalysts were characterized by
energy-dispersive X-ray spectroscopy, X-ray diffraction, transmission electron microscopy and X-ray photoelectron
spectroscopy, as well as cyclic voltammetry. As reference catalysts, Pd/C and Pt/C were used. The electrochemically
active surface area of all samples was determined from COads and Cuupd desorption and Pd oxide
reduction, and used to assess their intrinsic activity for EOR. Intimate contact of Pd with Cu atoms enhanced its
activity, regardless of the type of bimetal catalyst. The atomic Pd:Cu ratio between 2:1 and 4:1 appears to be
optimal for high activity. The most active catalyst under the potentiodynamic conditions was Cu@Pd/C with
θ(Cu) = 0.21,although Pd-Cu/C was superior during the potentiostatic test. All bimetallic catalysts surpassed
Pd/C in mass activity. The EOR activity of Pt/C was higher compared to Pd-based catalysts at low potentials,
both in terms of specific and mass activity, but with a significant decline over a 30-min potentiostatic stability
test.
PB  - Elsevier B.V.
T2  - Journal of Electroanalytical Chemistry
T1  - Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium
SP  - 117673
VL  - 944
DO  - 10.1016/j.jelechem.2023.117673
ER  - 

@article{
author = "Obradović, Maja and Lačnjevac, Uroš and Radmilovic, Vuk and Gavrilović-Wohlmuther, Aleksandra and Kovač, Janez and Rogan, Jelena R. and Radmilović, Velimir R. and Gojković, Snežana Lj.",
year = "2023",
abstract = "Two types of Cu-modified Pd catalysts supported on high area carbon were prepared: Pd nanoparticles modified
with a sub-monolayer of underpotentially deposited Cu (Cu@Pd/C) and Pd-Cu alloy nanoparticles (Pd-Cu/C),
and examined for the ethanol oxidation reaction (EOR) in alkaline solution. The catalysts were characterized by
energy-dispersive X-ray spectroscopy, X-ray diffraction, transmission electron microscopy and X-ray photoelectron
spectroscopy, as well as cyclic voltammetry. As reference catalysts, Pd/C and Pt/C were used. The electrochemically
active surface area of all samples was determined from COads and Cuupd desorption and Pd oxide
reduction, and used to assess their intrinsic activity for EOR. Intimate contact of Pd with Cu atoms enhanced its
activity, regardless of the type of bimetal catalyst. The atomic Pd:Cu ratio between 2:1 and 4:1 appears to be
optimal for high activity. The most active catalyst under the potentiodynamic conditions was Cu@Pd/C with
θ(Cu) = 0.21,although Pd-Cu/C was superior during the potentiostatic test. All bimetallic catalysts surpassed
Pd/C in mass activity. The EOR activity of Pt/C was higher compared to Pd-based catalysts at low potentials,
both in terms of specific and mass activity, but with a significant decline over a 30-min potentiostatic stability
test.",
publisher = "Elsevier B.V.",
journal = "Journal of Electroanalytical Chemistry",
title = "Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium",
pages = "117673",
volume = "944",
doi = "10.1016/j.jelechem.2023.117673"
}

Obradović, M., Lačnjevac, U., Radmilovic, V., Gavrilović-Wohlmuther, A., Kovač, J., Rogan, J. R., Radmilović, V. R.,& Gojković, S. Lj.. (2023). Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium. in Journal of Electroanalytical Chemistry
Elsevier B.V.., 944, 117673.
https://doi.org/10.1016/j.jelechem.2023.117673

Obradović M, Lačnjevac U, Radmilovic V, Gavrilović-Wohlmuther A, Kovač J, Rogan JR, Radmilović VR, Gojković SL. Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium. in Journal of Electroanalytical Chemistry. 2023;944:117673.
doi:10.1016/j.jelechem.2023.117673 .

Obradović, Maja, Lačnjevac, Uroš, Radmilovic, Vuk, Gavrilović-Wohlmuther, Aleksandra, Kovač, Janez, Rogan, Jelena R., Radmilović, Velimir R., Gojković, Snežana Lj., "Palladium-copper bimetallic surfaces as electrocatalysts for the ethanol oxidation in an alkaline medium" in Journal of Electroanalytical Chemistry, 944 (2023):117673,
https://doi.org/10.1016/j.jelechem.2023.117673 . .

TY  - JOUR
AU  - Krstajić Pajić, Mila N.
AU  - Dobrota, Ana S.
AU  - Mazare, Anca
AU  - Đurđić, Slađana
AU  - Hwang, Imgon
AU  - Skorodumova, Natalia V.
AU  - Manojlović, Dragan
AU  - Vasilic, Rastko
AU  - Pašti, Igor A.
AU  - Schmuki, Patrik
AU  - Lačnjevac, Uroš
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2706
AB  - Efficient cathodes for the hydrogen evolution reaction (HER) in acidic
water electrolysis rely on the use of expensive platinum group metals (PGMs). However, to
achieve economically viable operation, both the content of PGMs must be reduced and
their intrinsically strong H adsorption mitigated. Herein, we show that the surface effects of
hydrogenated TiO2 nanotube (TNT) arrays can make osmium, a so far less-explored PGM,
a highly active HER electrocatalyst. These defect-rich TiO2 nanostructures provide an
interactive scaffold for the galvanic deposition of Os particles with modulated adsorption
properties. Through systematic investigations, we identify the synthesis conditions (OsCl3
concentration/temperature/reaction time) that yield a progressive improvement in Os
deposition rate and mass loading, thereby decreasing the HER overpotential. At the same
time, the Os particles deposited by this procedure remain mainly sub-nanometric and
entirely cover the inner tube walls. An optimally balanced Os@TNT composite prepared at
3 mM/55 °C/30 min exhibits a record low overpotential (η) of 61 mV at a current density
of 100 mA cm−2, a high mass activity of 20.8 A mgOs
−1 at 80 mV, and a stable performance in an acidic medium. Density functional
theory calculations indicate the existence of strong interactions between the hydrogenated TiO2 surface and small Os clusters, which
may weaken the Os−H* binding strength and thus boost the intrinsic HER activity of Os centers. The results presented in this study
offer new directions for the fabrication of cost-effective PGM-based catalysts and a better understanding of the synergistic electronic
interactions at the PGM|TiO2 interface.
PB  - American Chemical Society
T2  - ACS Applied Materials and Interfaces
T1  - Activation of Osmium by the Surface Effects of Hydrogenated TiO2 Nanotube Arrays for Enhanced Hydrogen Evolution Reaction Performance
EP  - 31469
IS  - 26
SP  - 31459
VL  - 15
DO  - 10.1021/acsami.3c04498
ER  - 

@article{
author = "Krstajić Pajić, Mila N. and Dobrota, Ana S. and Mazare, Anca and Đurđić, Slađana and Hwang, Imgon and Skorodumova, Natalia V. and Manojlović, Dragan and Vasilic, Rastko and Pašti, Igor A. and Schmuki, Patrik and Lačnjevac, Uroš",
year = "2023",
abstract = "Efficient cathodes for the hydrogen evolution reaction (HER) in acidic
water electrolysis rely on the use of expensive platinum group metals (PGMs). However, to
achieve economically viable operation, both the content of PGMs must be reduced and
their intrinsically strong H adsorption mitigated. Herein, we show that the surface effects of
hydrogenated TiO2 nanotube (TNT) arrays can make osmium, a so far less-explored PGM,
a highly active HER electrocatalyst. These defect-rich TiO2 nanostructures provide an
interactive scaffold for the galvanic deposition of Os particles with modulated adsorption
properties. Through systematic investigations, we identify the synthesis conditions (OsCl3
concentration/temperature/reaction time) that yield a progressive improvement in Os
deposition rate and mass loading, thereby decreasing the HER overpotential. At the same
time, the Os particles deposited by this procedure remain mainly sub-nanometric and
entirely cover the inner tube walls. An optimally balanced Os@TNT composite prepared at
3 mM/55 °C/30 min exhibits a record low overpotential (η) of 61 mV at a current density
of 100 mA cm−2, a high mass activity of 20.8 A mgOs
−1 at 80 mV, and a stable performance in an acidic medium. Density functional
theory calculations indicate the existence of strong interactions between the hydrogenated TiO2 surface and small Os clusters, which
may weaken the Os−H* binding strength and thus boost the intrinsic HER activity of Os centers. The results presented in this study
offer new directions for the fabrication of cost-effective PGM-based catalysts and a better understanding of the synergistic electronic
interactions at the PGM|TiO2 interface.",
publisher = "American Chemical Society",
journal = "ACS Applied Materials and Interfaces",
title = "Activation of Osmium by the Surface Effects of Hydrogenated TiO2 Nanotube Arrays for Enhanced Hydrogen Evolution Reaction Performance",
pages = "31469-31459",
number = "26",
volume = "15",
doi = "10.1021/acsami.3c04498"
}

Krstajić Pajić, M. N., Dobrota, A. S., Mazare, A., Đurđić, S., Hwang, I., Skorodumova, N. V., Manojlović, D., Vasilic, R., Pašti, I. A., Schmuki, P.,& Lačnjevac, U.. (2023). Activation of Osmium by the Surface Effects of Hydrogenated TiO2 Nanotube Arrays for Enhanced Hydrogen Evolution Reaction Performance. in ACS Applied Materials and Interfaces
American Chemical Society., 15(26), 31459-31469.
https://doi.org/10.1021/acsami.3c04498

Krstajić Pajić MN, Dobrota AS, Mazare A, Đurđić S, Hwang I, Skorodumova NV, Manojlović D, Vasilic R, Pašti IA, Schmuki P, Lačnjevac U. Activation of Osmium by the Surface Effects of Hydrogenated TiO2 Nanotube Arrays for Enhanced Hydrogen Evolution Reaction Performance. in ACS Applied Materials and Interfaces. 2023;15(26):31459-31469.
doi:10.1021/acsami.3c04498 .

Krstajić Pajić, Mila N., Dobrota, Ana S., Mazare, Anca, Đurđić, Slađana, Hwang, Imgon, Skorodumova, Natalia V., Manojlović, Dragan, Vasilic, Rastko, Pašti, Igor A., Schmuki, Patrik, Lačnjevac, Uroš, "Activation of Osmium by the Surface Effects of Hydrogenated TiO2 Nanotube Arrays for Enhanced Hydrogen Evolution Reaction Performance" in ACS Applied Materials and Interfaces, 15, no. 26 (2023):31459-31469,
https://doi.org/10.1021/acsami.3c04498 . .

TY  - GEN
AU  - Elezović, Nevenka R.
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2329
AB  - Electrodeposited Co-Ru alloys at Ti2AlC suport as the catalysts for hydrogen production by water electrolysis towards sustainable economic development
Nevenka Elezovic1*, D. Kutyla2, M. Krstajić Pajić3, U. Lačnjevac1, P. Zabinski2
1*University of Belgrade, Institute for Multidisciplinary Research, Kneza Viseslava 1, 11000 Belgrade, Serbia, *invited-presenting author – nelezovic@tmf.bg.ac.rs                                                       
2 Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland;
3 University of Belgrade, Faculty of Technology and Metallurgy, 11000 Belgrade, Serbia;
Abstract
Cobalt-ruthenium alloys were electrochemically deposited at Ti2AlC suport from hloride based acid electrolyte. Thin layers of Co-Ru were obtained by potentiostatic electrodeposition in the potential range of -0.6 V to -1.0 V vs SCE. The chemical composition and physical-chemical characterization have been performed by X-ray Fluorescence spectroscopy (XRF), X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM-EDS).  It was found that increasing of Co content in the alloy led to gradual shift of the crystalline structure from HCP to FCC Co-Ru solid solution. The electrochemical characterization of the catalysts was done by linear sweep voltammetry, cyclic voltammetry and electrochemical impedance spectroscopy in alkaline electrolyte. The optimal conditions for deposition of nanocrystalline Co-Ru alloys with superior activity for hydrogen evolution were discussed in terms of activity and stability, as well as commercial acceptable costs for the catalysts production. 
Acknowledgements: This work was supported by the Ministry of Science and Technological Development Republic of Serbia (Contract No. 451-03-68/2023-14/200053 and Contract No. 451-03-68/2023-14/200135). The authors would like to thank Prof. M. Barsoum, Drexel University–Philadelphia USA for Ti2AlC preparation.
Keywords: Electrodeposition; Co– Ru alloys; MAX phases; Hydrogen Renewable Energy; Water splitting; 
Biography
Dr Nevenka R. Elezovic completed her PhD in 2005, from University of Belgrade. She is currently Research Professor at the Institute for Multidisciplinary Research, University of Belgrade. Her research interests include: Nanostructured materials and alloys for low temperature fuel cells and water electrolysis application - green energy production. Since 2013 she has been serving as national representative of Serbia and member of the European board in European Academy of Surface Technology: 
http://www.east-site.net. 
She has published more than 40 papers in high impact peer reviewed journals of eminent Publishers such as Elsevier, Royal Society of Chemistry, Springer, The Electrochemical Society and more than 70 conference papers. She has been serving as a reviewer for: Energy and Environmental Science, Applied Materials and Interfaces, Journal of Materials Chemistry A, Electrochimica Acta, Applied Catalysis B: Environmental, Journal of the Electrochemical Society, International Journal of Hydrogen Energy, as well as adjudicative (senior) reviewer for Energy and Environmental Science. She has given numerous invited lectures at the International conferences, recently at International Summit on Conventional and Sustainable Energies, 2018 Orlando, Florida, USA; Global Experts Meeting in Green Energy, 2019, Rome, Italy; Materials, the Building Block for the Future 3rd AAAFM-UCLA, 2021 Los Angeles USA; Euro-Global Climate Change conference, 2022, Paris, France.
Web page: http://www.imsi.bg.ac.rs/en/researchers/nevenka-r-elezovic
PB  - International Science and Technology Conference Institute (ISTCI)
T2  - International Congress on Advanced Materials Sciences and Engineering (AMSE-2023)
T1  - Electrodeposited Co-Ru alloys at Ti2AlC suport as the catalysts for hydrogen production by water electrolysis towards sustainable economic development
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2329
ER  - 

@misc{
author = "Elezović, Nevenka R.",
year = "2023",
abstract = "Electrodeposited Co-Ru alloys at Ti2AlC suport as the catalysts for hydrogen production by water electrolysis towards sustainable economic development
Nevenka Elezovic1*, D. Kutyla2, M. Krstajić Pajić3, U. Lačnjevac1, P. Zabinski2
1*University of Belgrade, Institute for Multidisciplinary Research, Kneza Viseslava 1, 11000 Belgrade, Serbia, *invited-presenting author – nelezovic@tmf.bg.ac.rs                                                       
2 Faculty of Non-Ferrous Metals, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland;
3 University of Belgrade, Faculty of Technology and Metallurgy, 11000 Belgrade, Serbia;
Abstract
Cobalt-ruthenium alloys were electrochemically deposited at Ti2AlC suport from hloride based acid electrolyte. Thin layers of Co-Ru were obtained by potentiostatic electrodeposition in the potential range of -0.6 V to -1.0 V vs SCE. The chemical composition and physical-chemical characterization have been performed by X-ray Fluorescence spectroscopy (XRF), X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM-EDS).  It was found that increasing of Co content in the alloy led to gradual shift of the crystalline structure from HCP to FCC Co-Ru solid solution. The electrochemical characterization of the catalysts was done by linear sweep voltammetry, cyclic voltammetry and electrochemical impedance spectroscopy in alkaline electrolyte. The optimal conditions for deposition of nanocrystalline Co-Ru alloys with superior activity for hydrogen evolution were discussed in terms of activity and stability, as well as commercial acceptable costs for the catalysts production. 
Acknowledgements: This work was supported by the Ministry of Science and Technological Development Republic of Serbia (Contract No. 451-03-68/2023-14/200053 and Contract No. 451-03-68/2023-14/200135). The authors would like to thank Prof. M. Barsoum, Drexel University–Philadelphia USA for Ti2AlC preparation.
Keywords: Electrodeposition; Co– Ru alloys; MAX phases; Hydrogen Renewable Energy; Water splitting; 
Biography
Dr Nevenka R. Elezovic completed her PhD in 2005, from University of Belgrade. She is currently Research Professor at the Institute for Multidisciplinary Research, University of Belgrade. Her research interests include: Nanostructured materials and alloys for low temperature fuel cells and water electrolysis application - green energy production. Since 2013 she has been serving as national representative of Serbia and member of the European board in European Academy of Surface Technology: 
http://www.east-site.net. 
She has published more than 40 papers in high impact peer reviewed journals of eminent Publishers such as Elsevier, Royal Society of Chemistry, Springer, The Electrochemical Society and more than 70 conference papers. She has been serving as a reviewer for: Energy and Environmental Science, Applied Materials and Interfaces, Journal of Materials Chemistry A, Electrochimica Acta, Applied Catalysis B: Environmental, Journal of the Electrochemical Society, International Journal of Hydrogen Energy, as well as adjudicative (senior) reviewer for Energy and Environmental Science. She has given numerous invited lectures at the International conferences, recently at International Summit on Conventional and Sustainable Energies, 2018 Orlando, Florida, USA; Global Experts Meeting in Green Energy, 2019, Rome, Italy; Materials, the Building Block for the Future 3rd AAAFM-UCLA, 2021 Los Angeles USA; Euro-Global Climate Change conference, 2022, Paris, France.
Web page: http://www.imsi.bg.ac.rs/en/researchers/nevenka-r-elezovic",
publisher = "International Science and Technology Conference Institute (ISTCI)",
journal = "International Congress on Advanced Materials Sciences and Engineering (AMSE-2023)",
title = "Electrodeposited Co-Ru alloys at Ti2AlC suport as the catalysts for hydrogen production by water electrolysis towards sustainable economic development",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2329"
}

Elezović, N. R.. (2023). Electrodeposited Co-Ru alloys at Ti2AlC suport as the catalysts for hydrogen production by water electrolysis towards sustainable economic development. in International Congress on Advanced Materials Sciences and Engineering (AMSE-2023)
International Science and Technology Conference Institute (ISTCI)..
https://hdl.handle.net/21.15107/rcub_rimsi_2329

Elezović NR. Electrodeposited Co-Ru alloys at Ti2AlC suport as the catalysts for hydrogen production by water electrolysis towards sustainable economic development. in International Congress on Advanced Materials Sciences and Engineering (AMSE-2023). 2023;.
https://hdl.handle.net/21.15107/rcub_rimsi_2329 .

Elezović, Nevenka R., "Electrodeposited Co-Ru alloys at Ti2AlC suport as the catalysts for hydrogen production by water electrolysis towards sustainable economic development" in International Congress on Advanced Materials Sciences and Engineering (AMSE-2023) (2023),
https://hdl.handle.net/21.15107/rcub_rimsi_2329 .

TY  - JOUR
AU  - Petričević, Aleksandar
AU  - Jović, Vladimir D
AU  - Krstajic Pajic, Mila
AU  - Marzec, M.
AU  - Gajevska, M.
AU  - Zabinski, Piotr
AU  - Elezović, Nevenka R.
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2341
AB  - The oxygen reduction reaction was investigated at 10 monolayers (MLs) of Pt electrodeposited on (Nb–Ti)2AlC substrate. Following the discussion of detailed kinetics and electrodeposition optimisation in the authors’ previous paper, the focus of this research was on stability testing. Previously performed optimisation results showed the best activity shown by 10 monolayers of Pt. Catalyst characterisation was performed by scanning electron microscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. SEM, EDS and XPS analysis showed that the surface was covered with a homogeneous layer of Pt. TEM analysis of a cross-section confirmed the presence of Pt layer of thickness ∼3.5 nm, corresponding to the 10 MLs of Pt. Although the mass activity for the ORR at 0.8 V vs. RHE of 37.4 A g−1 was comparable with the best one for the Pt/C benchmark, US Department of Energy Protocols revealed excellent catalyst stability – the loss of electrochemically active surface area (EASA) was found to be only 9.3%.
PB  - Taylor and Francis
T2  - Transactions of the IMF
T1  - Ultra-low Pt loading catalyst on (Nb–Ti)2AlC support as advanced material for low-temperature fuel cell application
DO  - 10.1080/00202967.2023.2281806
ER  - 

@article{
author = "Petričević, Aleksandar and Jović, Vladimir D and Krstajic Pajic, Mila and Marzec, M. and Gajevska, M. and Zabinski, Piotr and Elezović, Nevenka R.",
year = "2023",
abstract = "The oxygen reduction reaction was investigated at 10 monolayers (MLs) of Pt electrodeposited on (Nb–Ti)2AlC substrate. Following the discussion of detailed kinetics and electrodeposition optimisation in the authors’ previous paper, the focus of this research was on stability testing. Previously performed optimisation results showed the best activity shown by 10 monolayers of Pt. Catalyst characterisation was performed by scanning electron microscopy, X-ray photoelectron spectroscopy and transmission electron microscopy. SEM, EDS and XPS analysis showed that the surface was covered with a homogeneous layer of Pt. TEM analysis of a cross-section confirmed the presence of Pt layer of thickness ∼3.5 nm, corresponding to the 10 MLs of Pt. Although the mass activity for the ORR at 0.8 V vs. RHE of 37.4 A g−1 was comparable with the best one for the Pt/C benchmark, US Department of Energy Protocols revealed excellent catalyst stability – the loss of electrochemically active surface area (EASA) was found to be only 9.3%.",
publisher = "Taylor and Francis",
journal = "Transactions of the IMF",
title = "Ultra-low Pt loading catalyst on (Nb–Ti)2AlC support as advanced material for low-temperature fuel cell application",
doi = "10.1080/00202967.2023.2281806"
}

Petričević, A., Jović, V. D., Krstajic Pajic, M., Marzec, M., Gajevska, M., Zabinski, P.,& Elezović, N. R.. (2023). Ultra-low Pt loading catalyst on (Nb–Ti)2AlC support as advanced material for low-temperature fuel cell application. in Transactions of the IMF
Taylor and Francis..
https://doi.org/10.1080/00202967.2023.2281806

Petričević A, Jović VD, Krstajic Pajic M, Marzec M, Gajevska M, Zabinski P, Elezović NR. Ultra-low Pt loading catalyst on (Nb–Ti)2AlC support as advanced material for low-temperature fuel cell application. in Transactions of the IMF. 2023;.
doi:10.1080/00202967.2023.2281806 .

Petričević, Aleksandar, Jović, Vladimir D, Krstajic Pajic, Mila, Marzec, M., Gajevska, M., Zabinski, Piotr, Elezović, Nevenka R., "Ultra-low Pt loading catalyst on (Nb–Ti)2AlC support as advanced material for low-temperature fuel cell application" in Transactions of the IMF (2023),
https://doi.org/10.1080/00202967.2023.2281806 . .

TY  - CONF
AU  - Popović, Daniela Ž.
AU  - Ivanović, Tijana G.
AU  - Miladinović, Jelena
AU  - Miladinović, Zoran
AU  - Pastor, Ferenc
AU  - Zlatić, Aleksandra
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3099
AB  - The mean ionic activity coefficients of NaCl in a ternary system {yNaCl+(1-y) Na_2 HPO_4 }(aq)were determined using electromotive force measurements (EMF) at T = 298.15 K. For EMF measurements, a cell of the type Na–ISE〖NaCl(m〗_NaCl), Na_2 HPO_4 〖(m〗_(KH_2 PO_4 ))AgAgCl  was employed with NaCl ionic strength fractions y = (0.3012; 0.5011; 0.7706) in the range of total ionic strength of the solution I = (0.0701 – 0.9315) mol·kg-1. The Extended Pitzer model was used to analyze experimental data for the mixed electrolyte solution, and good agreement between experimental and calculated values of thermodynamic properties was found with a standard deviation of the fit of 10-3 order.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings)
T1  - THERMODYNAMIC PROPERTIES OF THE SYSTEM  {yNaCl+(1–y)Na2HPO4}(aq) AT  T = 298.15 K BY ELECTROMOTIVE FORCE MEASUREMENTS
EP  - 248
SP  - 245
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3099
ER  - 

@conference{
author = "Popović, Daniela Ž. and Ivanović, Tijana G. and Miladinović, Jelena and Miladinović, Zoran and Pastor, Ferenc and Zlatić, Aleksandra",
year = "2022",
abstract = "The mean ionic activity coefficients of NaCl in a ternary system {yNaCl+(1-y) Na_2 HPO_4 }(aq)were determined using electromotive force measurements (EMF) at T = 298.15 K. For EMF measurements, a cell of the type Na–ISE〖NaCl(m〗_NaCl), Na_2 HPO_4 〖(m〗_(KH_2 PO_4 ))AgAgCl  was employed with NaCl ionic strength fractions y = (0.3012; 0.5011; 0.7706) in the range of total ionic strength of the solution I = (0.0701 – 0.9315) mol·kg-1. The Extended Pitzer model was used to analyze experimental data for the mixed electrolyte solution, and good agreement between experimental and calculated values of thermodynamic properties was found with a standard deviation of the fit of 10-3 order.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings)",
title = "THERMODYNAMIC PROPERTIES OF THE SYSTEM  {yNaCl+(1–y)Na2HPO4}(aq) AT  T = 298.15 K BY ELECTROMOTIVE FORCE MEASUREMENTS",
pages = "248-245",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3099"
}

Popović, D. Ž., Ivanović, T. G., Miladinović, J., Miladinović, Z., Pastor, F.,& Zlatić, A.. (2022). THERMODYNAMIC PROPERTIES OF THE SYSTEM  {yNaCl+(1–y)Na2HPO4}(aq) AT  T = 298.15 K BY ELECTROMOTIVE FORCE MEASUREMENTS. in Physical chemistry 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings)
Society of Physical Chemists of Serbia., 245-248.
https://hdl.handle.net/21.15107/rcub_rimsi_3099

Popović DŽ, Ivanović TG, Miladinović J, Miladinović Z, Pastor F, Zlatić A. THERMODYNAMIC PROPERTIES OF THE SYSTEM  {yNaCl+(1–y)Na2HPO4}(aq) AT  T = 298.15 K BY ELECTROMOTIVE FORCE MEASUREMENTS. in Physical chemistry 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings). 2022;:245-248.
https://hdl.handle.net/21.15107/rcub_rimsi_3099 .

Popović, Daniela Ž., Ivanović, Tijana G., Miladinović, Jelena, Miladinović, Zoran, Pastor, Ferenc, Zlatić, Aleksandra, "THERMODYNAMIC PROPERTIES OF THE SYSTEM  {yNaCl+(1–y)Na2HPO4}(aq) AT  T = 298.15 K BY ELECTROMOTIVE FORCE MEASUREMENTS" in Physical chemistry 2022, 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings) (2022):245-248,
https://hdl.handle.net/21.15107/rcub_rimsi_3099 .

TY  - CONF
AU  - Zemljak, Olivera
AU  - Luković Golić, Danijela
AU  - Počuča-Nešić, Milica
AU  - Dapčević, Aleksandra
AU  - Pajić, Damir
AU  - Šenjug, Pavla
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2211
AB  - Hexagonal (P63cm) yttrium manganite, YMnO3, is a multiferroic material with
ferroelectric transition at TC ≈ 900 K and antiferromagnetic transition at TN ≈ 70 K. Multiferroic behavior attracts a lot of attention because of its potential for
various applications. The application possibilities are limited by large
microcracking and microporosity of YMnO3 ceramics.
In this work, the influence of Ti-doping on structural, ferroelectric and magnetic
properties of YMnO3 ceramics was investigated. YMn1–xTixO3+δ (x = 0, 0.04, 0.08,
0.10, 0.15, 0.20) powders were prepared using sol-gel, polymerization complex
method from citrate precursors, which were then calcinated at 900 °C for 4 h. The
ceramic samples were obtained after sintering for 2 h at: 1400 °C for YMnO3,
YMn0.96Ti0.04O3+δ, YMn0.92Ti0.08O3+δ and YMn0.90Ti0.10O3+δ; 1450 C for
YMn0.85Ti0.15O3+δ; 1470 °C for YMn0.80Ti0.20O3+δ. X-ray diffraction (XRD),
transmission and scanning electron microscopy (TEM and SEM) were used for
structural and microstructural analysis of samples. Ferroelectric measurements of
P(E) loops and leakage currents, and magnetic measurements of zero field cooled
(ZFC) and field cooled (FC) M(T) curves, as well as M(H) curves, were enabled
multiferroic characterization of ceramic samples.
The samples x = 0 and 0.04 are crystallized in a single phased hexagonal
structure, (P63cm), the samples x = 0.08 and 0.10 exhibited the presence of both
hexagonal phase and rhombohedral phase (R3c), and the samples x = 0.15 and 0.20
are crystallized in rhombohedral 1×1×3 superstructure. Ti-doped YMnO3 ceramic
samples showed reduced density of microcracks, and inter- and intragranular pores,
and large increase in relative density (greater than 90 %) for YMn1–xTixO3+δ (x =
0.10, 0.15 and 0.20) samples. Leakage currents for most of doped samples were
lower than leakage current of undoped sample, but the ferroelectric response was not
significantly improved. Doping of YMnO3 with nonmagnetic Ti4+ led to suppression
of antiferromagnetic ordering visible through decrease of the Néel temperature and
Weiss parameter and the appearance of weak ferromagnetism.
PB  - Institut za multicisciplinarna istrživanja, Belgrade, Serbia
C3  - 6th Conference of The Serbian Society for Ceramic Materials June 28-29, 2022 Belgrade, Serbia 6CSCS-2022
T1  - The influence of Ti-doping on structural and multiferroic properties of yttrium manganite ceramics
SP  - 74
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2211
ER  - 

@conference{
author = "Zemljak, Olivera and Luković Golić, Danijela and Počuča-Nešić, Milica and Dapčević, Aleksandra and Pajić, Damir and Šenjug, Pavla and Branković, Goran and Branković, Zorica",
year = "2022",
abstract = "Hexagonal (P63cm) yttrium manganite, YMnO3, is a multiferroic material with
ferroelectric transition at TC ≈ 900 K and antiferromagnetic transition at TN ≈ 70 K. Multiferroic behavior attracts a lot of attention because of its potential for
various applications. The application possibilities are limited by large
microcracking and microporosity of YMnO3 ceramics.
In this work, the influence of Ti-doping on structural, ferroelectric and magnetic
properties of YMnO3 ceramics was investigated. YMn1–xTixO3+δ (x = 0, 0.04, 0.08,
0.10, 0.15, 0.20) powders were prepared using sol-gel, polymerization complex
method from citrate precursors, which were then calcinated at 900 °C for 4 h. The
ceramic samples were obtained after sintering for 2 h at: 1400 °C for YMnO3,
YMn0.96Ti0.04O3+δ, YMn0.92Ti0.08O3+δ and YMn0.90Ti0.10O3+δ; 1450 C for
YMn0.85Ti0.15O3+δ; 1470 °C for YMn0.80Ti0.20O3+δ. X-ray diffraction (XRD),
transmission and scanning electron microscopy (TEM and SEM) were used for
structural and microstructural analysis of samples. Ferroelectric measurements of
P(E) loops and leakage currents, and magnetic measurements of zero field cooled
(ZFC) and field cooled (FC) M(T) curves, as well as M(H) curves, were enabled
multiferroic characterization of ceramic samples.
The samples x = 0 and 0.04 are crystallized in a single phased hexagonal
structure, (P63cm), the samples x = 0.08 and 0.10 exhibited the presence of both
hexagonal phase and rhombohedral phase (R3c), and the samples x = 0.15 and 0.20
are crystallized in rhombohedral 1×1×3 superstructure. Ti-doped YMnO3 ceramic
samples showed reduced density of microcracks, and inter- and intragranular pores,
and large increase in relative density (greater than 90 %) for YMn1–xTixO3+δ (x =
0.10, 0.15 and 0.20) samples. Leakage currents for most of doped samples were
lower than leakage current of undoped sample, but the ferroelectric response was not
significantly improved. Doping of YMnO3 with nonmagnetic Ti4+ led to suppression
of antiferromagnetic ordering visible through decrease of the Néel temperature and
Weiss parameter and the appearance of weak ferromagnetism.",
publisher = "Institut za multicisciplinarna istrživanja, Belgrade, Serbia",
journal = "6th Conference of The Serbian Society for Ceramic Materials June 28-29, 2022 Belgrade, Serbia 6CSCS-2022",
title = "The influence of Ti-doping on structural and multiferroic properties of yttrium manganite ceramics",
pages = "74",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2211"
}

Zemljak, O., Luković Golić, D., Počuča-Nešić, M., Dapčević, A., Pajić, D., Šenjug, P., Branković, G.,& Branković, Z.. (2022). The influence of Ti-doping on structural and multiferroic properties of yttrium manganite ceramics. in 6th Conference of The Serbian Society for Ceramic Materials June 28-29, 2022 Belgrade, Serbia 6CSCS-2022
Institut za multicisciplinarna istrživanja, Belgrade, Serbia., 74.
https://hdl.handle.net/21.15107/rcub_rimsi_2211

Zemljak O, Luković Golić D, Počuča-Nešić M, Dapčević A, Pajić D, Šenjug P, Branković G, Branković Z. The influence of Ti-doping on structural and multiferroic properties of yttrium manganite ceramics. in 6th Conference of The Serbian Society for Ceramic Materials June 28-29, 2022 Belgrade, Serbia 6CSCS-2022. 2022;:74.
https://hdl.handle.net/21.15107/rcub_rimsi_2211 .

Zemljak, Olivera, Luković Golić, Danijela, Počuča-Nešić, Milica, Dapčević, Aleksandra, Pajić, Damir, Šenjug, Pavla, Branković, Goran, Branković, Zorica, "The influence of Ti-doping on structural and multiferroic properties of yttrium manganite ceramics" in 6th Conference of The Serbian Society for Ceramic Materials June 28-29, 2022 Belgrade, Serbia 6CSCS-2022 (2022):74,
https://hdl.handle.net/21.15107/rcub_rimsi_2211 .

TY  - JOUR
AU  - Milošević, Olivera
AU  - Luković Golić, Danijela
AU  - Počuča-Nešić, Milica
AU  - Dapčević, Aleksandra
AU  - Šenjug, Pavla
AU  - Pajić, Damir
AU  - Radošević, Tina
AU  - Branković, Goran
AU  - Branković, Zorica
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1750
AB  - Yttrium manganite, YMnO3, was doped with different concentrations of titanium (x = 0, 0.04, 0.08, 0.10, 0.15, 0.20) in order to improve the microstructural and multiferroic properties. The powders were prepared using sol-gel polymerization complex method from citrate precursors. Depending on the titanium concentration, the hexagonal structure and/or the rhombohedral superstructure are present in the sintered samples. The YMn1–xTixO3+δ (x = 0.10, 0.15, 0.20) ceramic samples showed significantly reduced density of microcracks, and of inter- and intragranular pores, and relative densities greater than 90 %. The structural parameters for YMn1–xTixO3+δ (x = 0, 0.10, 0.15) were correlated with the results of magnetic and ferroelectric measurements. The most of titanium-doped samples showed a reduction of the leakage current density in comparison with undoped YMnO3, and their ferroelectric responses were slightly improved. The modifications in structural arrangement resulted in partial suppression of ideal antiferromagnetic ordering visible through decrease of the Néel temperature and Weiss parameter, as well as the appearance of weak ferromagnetism and increase of magnetization (especially, in samples x = 0.08, 0.10, 0.15). These changes in physical quantities most likely originated from incorporation of the uncompensated magnetic moments and possible spin canting induced by enhanced symmetry break of the superexchange bridges.
PB  - Springer
T2  - Journal of Sol-Gel Science and Technology
T1  - Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties
EP  - 819
IS  - 3
SP  - 807
VL  - 103
DO  - 10.1007/s10971-022-05872-3
ER  - 

@article{
author = "Milošević, Olivera and Luković Golić, Danijela and Počuča-Nešić, Milica and Dapčević, Aleksandra and Šenjug, Pavla and Pajić, Damir and Radošević, Tina and Branković, Goran and Branković, Zorica",
year = "2022",
abstract = "Yttrium manganite, YMnO3, was doped with different concentrations of titanium (x = 0, 0.04, 0.08, 0.10, 0.15, 0.20) in order to improve the microstructural and multiferroic properties. The powders were prepared using sol-gel polymerization complex method from citrate precursors. Depending on the titanium concentration, the hexagonal structure and/or the rhombohedral superstructure are present in the sintered samples. The YMn1–xTixO3+δ (x = 0.10, 0.15, 0.20) ceramic samples showed significantly reduced density of microcracks, and of inter- and intragranular pores, and relative densities greater than 90 %. The structural parameters for YMn1–xTixO3+δ (x = 0, 0.10, 0.15) were correlated with the results of magnetic and ferroelectric measurements. The most of titanium-doped samples showed a reduction of the leakage current density in comparison with undoped YMnO3, and their ferroelectric responses were slightly improved. The modifications in structural arrangement resulted in partial suppression of ideal antiferromagnetic ordering visible through decrease of the Néel temperature and Weiss parameter, as well as the appearance of weak ferromagnetism and increase of magnetization (especially, in samples x = 0.08, 0.10, 0.15). These changes in physical quantities most likely originated from incorporation of the uncompensated magnetic moments and possible spin canting induced by enhanced symmetry break of the superexchange bridges.",
publisher = "Springer",
journal = "Journal of Sol-Gel Science and Technology",
title = "Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties",
pages = "819-807",
number = "3",
volume = "103",
doi = "10.1007/s10971-022-05872-3"
}

Milošević, O., Luković Golić, D., Počuča-Nešić, M., Dapčević, A., Šenjug, P., Pajić, D., Radošević, T., Branković, G.,& Branković, Z.. (2022). Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties. in Journal of Sol-Gel Science and Technology
Springer., 103(3), 807-819.
https://doi.org/10.1007/s10971-022-05872-3

Milošević O, Luković Golić D, Počuča-Nešić M, Dapčević A, Šenjug P, Pajić D, Radošević T, Branković G, Branković Z. Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties. in Journal of Sol-Gel Science and Technology. 2022;103(3):807-819.
doi:10.1007/s10971-022-05872-3 .

Milošević, Olivera, Luković Golić, Danijela, Počuča-Nešić, Milica, Dapčević, Aleksandra, Šenjug, Pavla, Pajić, Damir, Radošević, Tina, Branković, Goran, Branković, Zorica, "Titanium doped yttrium manganite: improvement of microstructural properties and peculiarities of multiferroic properties" in Journal of Sol-Gel Science and Technology, 103, no. 3 (2022):807-819,
https://doi.org/10.1007/s10971-022-05872-3 . .

TY  - JOUR
AU  - Malešević, Aleksandar
AU  - Radojković, Aleksandar
AU  - Žunić, Milan
AU  - Dapčević, Aleksandra
AU  - Perać, Sanja
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1545
AB  - The properties of BaCe1-xInxO3-delta (x = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, and 0.40) as proton conducting electrolyte are examined. The dense electrolyte is formed after sintering at 1300 degrees C for 5 h in air. The samples with In content > 25 mol% contain In2O3 as a secondary phase. The highest total conductivity is around 5x10(-3) S/cm for BaCe0.75In0.25O3-delta in the wet hydrogen atmosphere at 700 degrees C. After exposure to pure CO2 atmosphere at 700 degrees C for 5 h, the concentrations of at least 15 mol% In can completely suppress degradation of the electrolyte. The power density of Ni-BaCe0.75In0.25O3-delta/BaCe0.75In0.25O3-delta/LSCF-BaCe0.75In0.25O3-delta fuel cell tested in wet hydrogen atmosphere reaches 264 mW/cm(2) at 700 degrees C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment.
PB  - Springer, New York
T2  - Journal of Advanced Ceramics
T1  - Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration
EP  - 453
IS  - 3
SP  - 443
VL  - 11
DO  - 10.1007/s40145-021-0547-1
ER  - 

@article{
author = "Malešević, Aleksandar and Radojković, Aleksandar and Žunić, Milan and Dapčević, Aleksandra and Perać, Sanja and Branković, Zorica and Branković, Goran",
year = "2022",
abstract = "The properties of BaCe1-xInxO3-delta (x = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, and 0.40) as proton conducting electrolyte are examined. The dense electrolyte is formed after sintering at 1300 degrees C for 5 h in air. The samples with In content > 25 mol% contain In2O3 as a secondary phase. The highest total conductivity is around 5x10(-3) S/cm for BaCe0.75In0.25O3-delta in the wet hydrogen atmosphere at 700 degrees C. After exposure to pure CO2 atmosphere at 700 degrees C for 5 h, the concentrations of at least 15 mol% In can completely suppress degradation of the electrolyte. The power density of Ni-BaCe0.75In0.25O3-delta/BaCe0.75In0.25O3-delta/LSCF-BaCe0.75In0.25O3-delta fuel cell tested in wet hydrogen atmosphere reaches 264 mW/cm(2) at 700 degrees C. This result is an indication of stability and functionality of this electrolyte and its versatility in respect to type of fuel and performing environment.",
publisher = "Springer, New York",
journal = "Journal of Advanced Ceramics",
title = "Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration",
pages = "453-443",
number = "3",
volume = "11",
doi = "10.1007/s40145-021-0547-1"
}

Malešević, A., Radojković, A., Žunić, M., Dapčević, A., Perać, S., Branković, Z.,& Branković, G.. (2022). Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration. in Journal of Advanced Ceramics
Springer, New York., 11(3), 443-453.
https://doi.org/10.1007/s40145-021-0547-1

Malešević A, Radojković A, Žunić M, Dapčević A, Perać S, Branković Z, Branković G. Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration. in Journal of Advanced Ceramics. 2022;11(3):443-453.
doi:10.1007/s40145-021-0547-1 .

Malešević, Aleksandar, Radojković, Aleksandar, Žunić, Milan, Dapčević, Aleksandra, Perać, Sanja, Branković, Zorica, Branković, Goran, "Evaluation of stability and functionality of BaCe1-xInxO3-delta electrolyte in a wider range of indium concentration" in Journal of Advanced Ceramics, 11, no. 3 (2022):443-453,
https://doi.org/10.1007/s40145-021-0547-1 . .

TY  - CONF
AU  - Radovanovic, Lidija
AU  - Radovanovic, Zeljko
AU  - Kremenovic, Aleksandar
AU  - Simović, Bojana
AU  - Vasić (prev. Arsenović), Milica
AU  - Rogan, Jelena
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1998
AB  - In recent years, thermal decomposition studies of transition metal complexes with benzenepolycarboxylate ligands have become an area of a great importance due to the possibility of obtaining useful metal oxides with desirable electrical, magnetic and catalytic properties [1]. As a
contrast to conventional methods for the preparation of metal oxides, such as hydrothermal or sol–
gel treatment, thermolysis is faster, more efficient and environmentally friendly. Mn(II)–dipya
(dipya = 2,2’-dipyridylamine) complex with tetraanion of 1,2,4,5-benzenetetracarboxylic
(pyromellitic, H4pyr) acid, [Mn2(dipya)2(pyr)(H2O)2], has been prepared and characterized by
elemental, spectral and microscopy analyses. Direct thermolysis of the complex up to 1200 °C in an air atmosphere yielded spinel Mn3O4 oxide material. The obtained Mn3O4 has been characterized for its structural, spectroscopic, morphological and optical properties. The possibilities of using this oxide as photocatalyst or co-photocatalyst for removing textile organic dyes, as well as inorganic pigmentary material, were also investigated and discussed.
PB  - University in Banjaluka, Faculty of Technology
C3  - XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA, ACADEMY OF SCIENCES AND ARTS OF THE REPUBLIC OF SRPSKA, BANJA LUKA
T1  - MANGANESE-PYROMELLITATE COMPLEX AS A PRECURSOR FOR PREPARATION OF SPINEL Mn3O4
SP  - 192
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1998
ER  - 

@conference{
author = "Radovanovic, Lidija and Radovanovic, Zeljko and Kremenovic, Aleksandar and Simović, Bojana and Vasić (prev. Arsenović), Milica and Rogan, Jelena",
year = "2022",
abstract = "In recent years, thermal decomposition studies of transition metal complexes with benzenepolycarboxylate ligands have become an area of a great importance due to the possibility of obtaining useful metal oxides with desirable electrical, magnetic and catalytic properties [1]. As a
contrast to conventional methods for the preparation of metal oxides, such as hydrothermal or sol–
gel treatment, thermolysis is faster, more efficient and environmentally friendly. Mn(II)–dipya
(dipya = 2,2’-dipyridylamine) complex with tetraanion of 1,2,4,5-benzenetetracarboxylic
(pyromellitic, H4pyr) acid, [Mn2(dipya)2(pyr)(H2O)2], has been prepared and characterized by
elemental, spectral and microscopy analyses. Direct thermolysis of the complex up to 1200 °C in an air atmosphere yielded spinel Mn3O4 oxide material. The obtained Mn3O4 has been characterized for its structural, spectroscopic, morphological and optical properties. The possibilities of using this oxide as photocatalyst or co-photocatalyst for removing textile organic dyes, as well as inorganic pigmentary material, were also investigated and discussed.",
publisher = "University in Banjaluka, Faculty of Technology",
journal = "XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA, ACADEMY OF SCIENCES AND ARTS OF THE REPUBLIC OF SRPSKA, BANJA LUKA",
title = "MANGANESE-PYROMELLITATE COMPLEX AS A PRECURSOR FOR PREPARATION OF SPINEL Mn3O4",
pages = "192",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1998"
}

Radovanovic, L., Radovanovic, Z., Kremenovic, A., Simović, B., Vasić (prev. Arsenović), M.,& Rogan, J.. (2022). MANGANESE-PYROMELLITATE COMPLEX AS A PRECURSOR FOR PREPARATION OF SPINEL Mn3O4. in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA, ACADEMY OF SCIENCES AND ARTS OF THE REPUBLIC OF SRPSKA, BANJA LUKA
University in Banjaluka, Faculty of Technology., 192.
https://hdl.handle.net/21.15107/rcub_rimsi_1998

Radovanovic L, Radovanovic Z, Kremenovic A, Simović B, Vasić (prev. Arsenović) M, Rogan J. MANGANESE-PYROMELLITATE COMPLEX AS A PRECURSOR FOR PREPARATION OF SPINEL Mn3O4. in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA, ACADEMY OF SCIENCES AND ARTS OF THE REPUBLIC OF SRPSKA, BANJA LUKA. 2022;:192.
https://hdl.handle.net/21.15107/rcub_rimsi_1998 .

Radovanovic, Lidija, Radovanovic, Zeljko, Kremenovic, Aleksandar, Simović, Bojana, Vasić (prev. Arsenović), Milica, Rogan, Jelena, "MANGANESE-PYROMELLITATE COMPLEX AS A PRECURSOR FOR PREPARATION OF SPINEL Mn3O4" in XIV CONFERENCE OF CHEMISTS, TECHNOLOGISTS AND ENVIRONMENTALISTS OF REPUBLIC OF SRPSKA, ACADEMY OF SCIENCES AND ARTS OF THE REPUBLIC OF SRPSKA, BANJA LUKA (2022):192,
https://hdl.handle.net/21.15107/rcub_rimsi_1998 .

TY  - CONF
AU  - Simović, Bojana
AU  - Milojković, Natalija
AU  - Žunić, Milan
AU  - Branković, Goran
AU  - Dapčević, Aleksandra
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1990
AB  - The structural, microstructural, optical and photocatalytic properties of
hydrothermally obtained single-phase ZnO and CeO2@ZnO nanocomposites have
been investigated by the XRPD, FESEM, HRTEM/SAED and UV-vis techniques. In
order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in
ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%.
The results showed that CeO2 with spherical crystallites of about 5 nm was
distributed onto the ZnO surface, whose crystallites displayed a bimodal
distribution, from nano- to microcrystallites. The morphology of ZnO particles
varied from elongated nanograins to microrods that further formed a 3-D tie-like
morphology which was disrupted by CeO2 adding. By degrading 90% of RO16 dye
in 180 minutes, the composite containing 5 mol% of CeO2 showed approximately
for 30% better photocatalytic efficiency comparing to other samples, although all the
obtained powders have similar structural, microstructural and optical characteristics.
This is obviously the optimal ratio of these two phases, in which synergy of CeO2
adsorption and ZnO photocatalytic effect reaches its maximum due to reduced
recombination rate and improved adsorption. The kinetic of RO16 degradation could
be described by a pseudo-first order model.
PB  - Institut za multidisciplinarna istraživanja, Belgrade, Serbia
C3  - 6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,
T1  - Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite
SP  - 54
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1990
ER  - 

@conference{
author = "Simović, Bojana and Milojković, Natalija and Žunić, Milan and Branković, Goran and Dapčević, Aleksandra",
year = "2022",
abstract = "The structural, microstructural, optical and photocatalytic properties of
hydrothermally obtained single-phase ZnO and CeO2@ZnO nanocomposites have
been investigated by the XRPD, FESEM, HRTEM/SAED and UV-vis techniques. In
order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in
ZnO powders was determined by varying the quantity of CeO2 from 0 to 10 mol%.
The results showed that CeO2 with spherical crystallites of about 5 nm was
distributed onto the ZnO surface, whose crystallites displayed a bimodal
distribution, from nano- to microcrystallites. The morphology of ZnO particles
varied from elongated nanograins to microrods that further formed a 3-D tie-like
morphology which was disrupted by CeO2 adding. By degrading 90% of RO16 dye
in 180 minutes, the composite containing 5 mol% of CeO2 showed approximately
for 30% better photocatalytic efficiency comparing to other samples, although all the
obtained powders have similar structural, microstructural and optical characteristics.
This is obviously the optimal ratio of these two phases, in which synergy of CeO2
adsorption and ZnO photocatalytic effect reaches its maximum due to reduced
recombination rate and improved adsorption. The kinetic of RO16 degradation could
be described by a pseudo-first order model.",
publisher = "Institut za multidisciplinarna istraživanja, Belgrade, Serbia",
journal = "6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,",
title = "Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite",
pages = "54",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1990"
}

Simović, B., Milojković, N., Žunić, M., Branković, G.,& Dapčević, A.. (2022). Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite. in 6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,
Institut za multidisciplinarna istraživanja, Belgrade, Serbia., 54.
https://hdl.handle.net/21.15107/rcub_rimsi_1990

Simović B, Milojković N, Žunić M, Branković G, Dapčević A. Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite. in 6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia,. 2022;:54.
https://hdl.handle.net/21.15107/rcub_rimsi_1990 .

Simović, Bojana, Milojković, Natalija, Žunić, Milan, Branković, Goran, Dapčević, Aleksandra, "Improved photocatalytic degradation of RO16 dye using hydrothermally synthesized CeO2@ZnO nanocomposite" in 6rd Conference of the Serbian Society for Ceramic Materials, Belgrade, Serbia, (2022):54,
https://hdl.handle.net/21.15107/rcub_rimsi_1990 .

TY  - THES
AU  - Simović, Bojana
PY  - 2022
UR  - https://eteze.bg.ac.rs/application/showtheses?thesesId=9088
UR  - https://nardus.mpn.gov.rs/handle/123456789/21417
UR  - https://phaidrabg.bg.ac.rs/view/o:29328
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:29328/bdef:Content/download
UR  - https://plus.cobiss.net/cobiss/sr/sr/bib/115386633
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1986
AB  - У овој дисертацији представљено је добијање фотокаталитички активних материјала на бази цинк-оксида, титан-диоксида и церијум-диоксида у циљу уклањања штетних текстилних боја из отпадних вода. Главне методе синтезе биле су солво- и хидротермална, а у појединим случајевима је коришћена и преципитациона. Испитана су структурна, морфолошка, термичка, текстурална, оптичка и фотокаталитичка својства добијених наноматеријала: ZnO, ZnO модификованог сребром, TiO2, различитих титаната натријума, CeO2, као и нанокомпозита CeO2/ZnO и TiO2/ZnTiO3.
Између наночестица ZnO добијених солвотермалном синтезом и микроштапића ZnO добијених хидротермалним процесом нема значајне разлике у фотокаталитичкој активности. Нанопрахови Ag/ZnO синтетисани преципитационом методом су мање ефикасни у разградњи боје RO16 у односу на солвотермално добијене нанопрахове Аg/ZnО.
Девет производа на бази TiO2 је добијено при различитим условима хидротермалног третмана полазног наноанатаса у раствору NaOH. Једнофазни титанат Na0,4H1,6Ti2O5·H2O, који је неактиван за разградњу RО16, добијен је након најинтезивнијег третмана.
Испитан је утицај различитих прекурсора, коришћених при хидротермалној синтези, на добијање CeO2 и његова својства. Иако ниједан добијени нанопрах CeO2 није показао значајну фотокаталитичку активност за разградњу RО16, онај добијен из CeCl3·7H2O показао се као одличан адсорбент.
Код ZnO прахова са различитим садржајем CeO2 одређен је оптималан удео CeО2 у циљу побољшања фотокаталитичке ефикасности ZnО. Композит који садржи 5 mol.% CеО2 има бољу фотокаталитичку ефикасност приликом разградње RО16 у односу на немодификовани ZnО.
Приликом синтезе композита на бази ТiО2 и ZnО добијен је нанокомпозит са 42 mas.% TiO2 и 58 mas.% ZnTiO3 који има већу ефикасност него ТiО2 приликом уклањања боје АG25.
AB  - The synthesis of photocatalytic materials based on ZnO, TiO2 and CeO2 for textile wastewater treatment is presented in this dissertation. The main synthetic procedures were solvo- and hydrothermal but, the precipitation method was used as well. The structural, morphological, thermal, textural, optical and photocatalytic properties of the obtained nanomaterials: ZnO, Аg modified ZnO, TiO2, various Na titanates, CeO2, CeO2/ZnO and TiO2/ZnTiO3 nanocomposites, were examined.
There was no significant difference in photocatalytic activity between the solvothermally obtained ZnO nanoparticles and hydrothermally prepared ZnO microrods. Based on degradation of RO16, all the Ag/ZnO nanopowders obtained by the precipitation method were less efficient than ones synthesized by the solvothermal method.
TiO2-based products were obtained by the hydrothermal treatment of starting nanoanatase using NaOH solution under different conditions. The single Na0.4H1.6Ti2O5·H2O, which was inactive for degradation RO16, was obtained after the most intensive treatment.
The influence of different precursors used in the hydrothermal synthesis, on the properties of obtained CeO2 nanopowders was investigated. Although none of obtained CeO2 did not show any significant photocatalytic activity to RO16, one synthesized from the CeCl3·7H2O exhibited adsorption property.
In order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in ZnO powders was determined. The composite containing 5 mol% of CeO2 showed better photocatalytic efficiency in the degradation of RO16 compared to the unmodified ZnO.
The nanocrystalline composite containing 42 wt% of TiO2 and 58 wt% of ZnTiO3, was obtained within the try to synthesize TiO2/ZnO composites, was more efficient than the TiO2 in removal of AG25.
PB  - Univerzitet u Beogradu, Tehnološko-metalurški fakultet
T1  - СИНТЕЗА И КАРАКТЕРИЗАЦИЈА НАНОСТРУКТУРНИХ МАТЕРИЈАЛА НА БАЗИ ЦИНК-ОКСИДА, ТИТАН-ДИОКСИДА И ЦЕРИЈУМ-ДИОКСИДА ЗА ПРИМЕНУ У ФОТОКАТАЛИЗИ
T1  - SYNTHESIS AND CHARACTERIZATION OF NANOSTRUCTURAL MATERIALS BASED ON ZINC OXIDE, TITANIUM DIOXIDE AND CERIUM DIOXIDE FOR APPLICATION IN PHOTOCATALYSIS
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1986
ER  - 

@phdthesis{
author = "Simović, Bojana",
year = "2022",
abstract = "У овој дисертацији представљено је добијање фотокаталитички активних материјала на бази цинк-оксида, титан-диоксида и церијум-диоксида у циљу уклањања штетних текстилних боја из отпадних вода. Главне методе синтезе биле су солво- и хидротермална, а у појединим случајевима је коришћена и преципитациона. Испитана су структурна, морфолошка, термичка, текстурална, оптичка и фотокаталитичка својства добијених наноматеријала: ZnO, ZnO модификованог сребром, TiO2, различитих титаната натријума, CeO2, као и нанокомпозита CeO2/ZnO и TiO2/ZnTiO3.
Између наночестица ZnO добијених солвотермалном синтезом и микроштапића ZnO добијених хидротермалним процесом нема значајне разлике у фотокаталитичкој активности. Нанопрахови Ag/ZnO синтетисани преципитационом методом су мање ефикасни у разградњи боје RO16 у односу на солвотермално добијене нанопрахове Аg/ZnО.
Девет производа на бази TiO2 је добијено при различитим условима хидротермалног третмана полазног наноанатаса у раствору NaOH. Једнофазни титанат Na0,4H1,6Ti2O5·H2O, који је неактиван за разградњу RО16, добијен је након најинтезивнијег третмана.
Испитан је утицај различитих прекурсора, коришћених при хидротермалној синтези, на добијање CeO2 и његова својства. Иако ниједан добијени нанопрах CeO2 није показао значајну фотокаталитичку активност за разградњу RО16, онај добијен из CeCl3·7H2O показао се као одличан адсорбент.
Код ZnO прахова са различитим садржајем CeO2 одређен је оптималан удео CeО2 у циљу побољшања фотокаталитичке ефикасности ZnО. Композит који садржи 5 mol.% CеО2 има бољу фотокаталитичку ефикасност приликом разградње RО16 у односу на немодификовани ZnО.
Приликом синтезе композита на бази ТiО2 и ZnО добијен је нанокомпозит са 42 mas.% TiO2 и 58 mas.% ZnTiO3 који има већу ефикасност него ТiО2 приликом уклањања боје АG25., The synthesis of photocatalytic materials based on ZnO, TiO2 and CeO2 for textile wastewater treatment is presented in this dissertation. The main synthetic procedures were solvo- and hydrothermal but, the precipitation method was used as well. The structural, morphological, thermal, textural, optical and photocatalytic properties of the obtained nanomaterials: ZnO, Аg modified ZnO, TiO2, various Na titanates, CeO2, CeO2/ZnO and TiO2/ZnTiO3 nanocomposites, were examined.
There was no significant difference in photocatalytic activity between the solvothermally obtained ZnO nanoparticles and hydrothermally prepared ZnO microrods. Based on degradation of RO16, all the Ag/ZnO nanopowders obtained by the precipitation method were less efficient than ones synthesized by the solvothermal method.
TiO2-based products were obtained by the hydrothermal treatment of starting nanoanatase using NaOH solution under different conditions. The single Na0.4H1.6Ti2O5·H2O, which was inactive for degradation RO16, was obtained after the most intensive treatment.
The influence of different precursors used in the hydrothermal synthesis, on the properties of obtained CeO2 nanopowders was investigated. Although none of obtained CeO2 did not show any significant photocatalytic activity to RO16, one synthesized from the CeCl3·7H2O exhibited adsorption property.
In order to improve the photocatalytic efficiency of ZnO, the optimal CeO2 content in ZnO powders was determined. The composite containing 5 mol% of CeO2 showed better photocatalytic efficiency in the degradation of RO16 compared to the unmodified ZnO.
The nanocrystalline composite containing 42 wt% of TiO2 and 58 wt% of ZnTiO3, was obtained within the try to synthesize TiO2/ZnO composites, was more efficient than the TiO2 in removal of AG25.",
publisher = "Univerzitet u Beogradu, Tehnološko-metalurški fakultet",
title = "СИНТЕЗА И КАРАКТЕРИЗАЦИЈА НАНОСТРУКТУРНИХ МАТЕРИЈАЛА НА БАЗИ ЦИНК-ОКСИДА, ТИТАН-ДИОКСИДА И ЦЕРИЈУМ-ДИОКСИДА ЗА ПРИМЕНУ У ФОТОКАТАЛИЗИ, SYNTHESIS AND CHARACTERIZATION OF NANOSTRUCTURAL MATERIALS BASED ON ZINC OXIDE, TITANIUM DIOXIDE AND CERIUM DIOXIDE FOR APPLICATION IN PHOTOCATALYSIS",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1986"
}

Simović, B.. (2022). СИНТЕЗА И КАРАКТЕРИЗАЦИЈА НАНОСТРУКТУРНИХ МАТЕРИЈАЛА НА БАЗИ ЦИНК-ОКСИДА, ТИТАН-ДИОКСИДА И ЦЕРИЈУМ-ДИОКСИДА ЗА ПРИМЕНУ У ФОТОКАТАЛИЗИ. 
Univerzitet u Beogradu, Tehnološko-metalurški fakultet..
https://hdl.handle.net/21.15107/rcub_rimsi_1986

Simović B. СИНТЕЗА И КАРАКТЕРИЗАЦИЈА НАНОСТРУКТУРНИХ МАТЕРИЈАЛА НА БАЗИ ЦИНК-ОКСИДА, ТИТАН-ДИОКСИДА И ЦЕРИЈУМ-ДИОКСИДА ЗА ПРИМЕНУ У ФОТОКАТАЛИЗИ. 2022;.
https://hdl.handle.net/21.15107/rcub_rimsi_1986 .

Simović, Bojana, "СИНТЕЗА И КАРАКТЕРИЗАЦИЈА НАНОСТРУКТУРНИХ МАТЕРИЈАЛА НА БАЗИ ЦИНК-ОКСИДА, ТИТАН-ДИОКСИДА И ЦЕРИЈУМ-ДИОКСИДА ЗА ПРИМЕНУ У ФОТОКАТАЛИЗИ" (2022),
https://hdl.handle.net/21.15107/rcub_rimsi_1986 .

TY  - CONF
AU  - Milojković, Natalija
AU  - Simović, Bojana
AU  - Žunić, Milan
AU  - Dapčević, Aleksandra
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1989
AB  - Poznato je da je titan-dioksid, kao netoksičan, stabilan i ekonomičan materijal, jedan od
najčešće korišćenih fotokatalizatora. S druge strane, elektroprovodni polianilin (PANI) je
takođe pogodan kandidat za primenu u fotokatalizi. Cilj ovog rada bio je dobijanje
nanokompozita TiO2/PANI sa boljom fotokatalitičkom aktivnošću u odnosu na TiO2. U
cilju optimizacije sadržaja polimera sintetisano je 4 uzorka TiO2/x%PANI (x = 0, 1, 3 i
5 mas.%), koji su okarakterisani XRD i TG/DTA metodama, dok je fotokatalitička
aktivnost ispitana kroz razgradnju toksične tekstilne boje RO16. Pokazano je da su svi
kompoziti fotokatalitički aktivniji od TiO2, i da optimalan sadržaj polianilina iznosi
3 mas.%. Naime, uzorak TiO2/3%PANI je, nakon 60 minuta, razgradio 95 % boje, što je za
17 % više u odnosu na TiO2, dok je nakon 120 minuta fotorazgradnja boje potpuna. Pored
toga, ovaj uzorak je pokazao čak 14 puta izraženiju adsorpciju od TiO2. Efikasnost
TiO2/5%PANI je slična TiO2/3%PANI, ali sa slabije izraženim adsorpcionim svojstvima,
dok je efikasnost TiO2/1%PANI bliska TiO2.
AB  - It is well known that the non-toxic, stable and economical titanium dioxide is one of the
most commonly used photocatalysts. On the other hand, the conductive polyaniline (PANI)
is also suitable candidate for photocatalytic application. The aim of this work was to obtain
the TiO2/PANI nanocomposites with increased photocatalytic activity comparing to TiO2.
In order to determine the optimal PANI content, four TiO2/x%PANI samples (x = 0, 1, 3
and 5 wt.%) were synthesized and characterized by XRD and TG/DTA analysis. The
photocatalytic activity was tested on the toxic textile RO16 dye. It is shown that all the
composites exhibited better photocatalytic performances than TiO2 and that the optimal
PANI content amounted 3 wt.%. Namely, the TiO2/3%PANI degraded 95 % of the dye
within 60 minutes, which is for 17 % better comparing to TiO2. The full photodegradation
was reached in 120 min. This sample showed even 14 times better adsorption than TiO2.
The efficiency of TiO2/5%PANI was similar to TiO2/3%PANI, but with poorer adsorption,
while the efficiency of TiO2/1%PANI was close to TiO2.
PB  - Srpsko hemijsko društvo/Serbian Chemical Society
C3  - 58th Meeting of the Serbian Chemical Society, Belgrade, Book of Abstracts
T1  - TiO2/PANI nanocomposites for photocatalytic application
T1  - Nanokompoziti TiO2/PANI za primenu u fotokatalizi
SP  - 105
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1989
ER  - 

@conference{
author = "Milojković, Natalija and Simović, Bojana and Žunić, Milan and Dapčević, Aleksandra",
year = "2022",
abstract = "Poznato je da je titan-dioksid, kao netoksičan, stabilan i ekonomičan materijal, jedan od
najčešće korišćenih fotokatalizatora. S druge strane, elektroprovodni polianilin (PANI) je
takođe pogodan kandidat za primenu u fotokatalizi. Cilj ovog rada bio je dobijanje
nanokompozita TiO2/PANI sa boljom fotokatalitičkom aktivnošću u odnosu na TiO2. U
cilju optimizacije sadržaja polimera sintetisano je 4 uzorka TiO2/x%PANI (x = 0, 1, 3 i
5 mas.%), koji su okarakterisani XRD i TG/DTA metodama, dok je fotokatalitička
aktivnost ispitana kroz razgradnju toksične tekstilne boje RO16. Pokazano je da su svi
kompoziti fotokatalitički aktivniji od TiO2, i da optimalan sadržaj polianilina iznosi
3 mas.%. Naime, uzorak TiO2/3%PANI je, nakon 60 minuta, razgradio 95 % boje, što je za
17 % više u odnosu na TiO2, dok je nakon 120 minuta fotorazgradnja boje potpuna. Pored
toga, ovaj uzorak je pokazao čak 14 puta izraženiju adsorpciju od TiO2. Efikasnost
TiO2/5%PANI je slična TiO2/3%PANI, ali sa slabije izraženim adsorpcionim svojstvima,
dok je efikasnost TiO2/1%PANI bliska TiO2., It is well known that the non-toxic, stable and economical titanium dioxide is one of the
most commonly used photocatalysts. On the other hand, the conductive polyaniline (PANI)
is also suitable candidate for photocatalytic application. The aim of this work was to obtain
the TiO2/PANI nanocomposites with increased photocatalytic activity comparing to TiO2.
In order to determine the optimal PANI content, four TiO2/x%PANI samples (x = 0, 1, 3
and 5 wt.%) were synthesized and characterized by XRD and TG/DTA analysis. The
photocatalytic activity was tested on the toxic textile RO16 dye. It is shown that all the
composites exhibited better photocatalytic performances than TiO2 and that the optimal
PANI content amounted 3 wt.%. Namely, the TiO2/3%PANI degraded 95 % of the dye
within 60 minutes, which is for 17 % better comparing to TiO2. The full photodegradation
was reached in 120 min. This sample showed even 14 times better adsorption than TiO2.
The efficiency of TiO2/5%PANI was similar to TiO2/3%PANI, but with poorer adsorption,
while the efficiency of TiO2/1%PANI was close to TiO2.",
publisher = "Srpsko hemijsko društvo/Serbian Chemical Society",
journal = "58th Meeting of the Serbian Chemical Society, Belgrade, Book of Abstracts",
title = "TiO2/PANI nanocomposites for photocatalytic application, Nanokompoziti TiO2/PANI za primenu u fotokatalizi",
pages = "105",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1989"
}

Milojković, N., Simović, B., Žunić, M.,& Dapčević, A.. (2022). TiO2/PANI nanocomposites for photocatalytic application. in 58th Meeting of the Serbian Chemical Society, Belgrade, Book of Abstracts
Srpsko hemijsko društvo/Serbian Chemical Society., 105.
https://hdl.handle.net/21.15107/rcub_rimsi_1989

Milojković N, Simović B, Žunić M, Dapčević A. TiO2/PANI nanocomposites for photocatalytic application. in 58th Meeting of the Serbian Chemical Society, Belgrade, Book of Abstracts. 2022;:105.
https://hdl.handle.net/21.15107/rcub_rimsi_1989 .

Milojković, Natalija, Simović, Bojana, Žunić, Milan, Dapčević, Aleksandra, "TiO2/PANI nanocomposites for photocatalytic application" in 58th Meeting of the Serbian Chemical Society, Belgrade, Book of Abstracts (2022):105,
https://hdl.handle.net/21.15107/rcub_rimsi_1989 .

TY  - CONF
AU  - Milojković, Natalija
AU  - Simović, Bojana
AU  - Žunić, Milan
AU  - Dapčević, Aleksandra
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1987
AB  - Titanium dioxide is the most suitable semiconductor for photocatalytic application due
to its high efficiency, increased stability, low-cost, and non-toxicity. However, it is
possible to enhance the photocatalytic activity of TiO2 by homogenizing it with
conductive polymers. One of the most attractive conductive polymers is polypyrrole
(PPy) owing to its stability, low-cost, and special redox properties. The aim of this work
was to obtain the TiO2/PPy nanocomposites with a higher photocatalytic activity
compared to TiO2. In order to determine the optimal content of PPy, four TiO2/x%PPy
samples (x = 0, 1, 3, and 5 wt.%) were synthesized and characterized by XRD and
TG/DSC analyses. The photocatalytic activity was examined towards the degradation of
toxic textile azo dye Reactive Orange 16. It was observed that an increase in PPy content
led to better adsorption capacity of the synthesized nanocomposites. Samples
TiO2/1%PPy and TiO2/5%PPy demonstrated better photocatalytic activity than TiO2,
while TiO2/3%PPy showed very similar photocatalytic activity to TiO2. Near complete
degradation of the dye (98 %) was reached in 75 min by using TiO2/1%PPy, comparing
to pure TiO2, which degraded the same amount of the dye in 120 min. Considering all
the obtained results, the optimal content of PPy in the composite for degradation of
Reactive Orange 16 is 1 wt.%.
PB  - Serbian Chemical Society
C3  - Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts
T1  - Highly efficient TiO2/Ppy photocatalysts
SP  - 93
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1987
ER  - 

@conference{
author = "Milojković, Natalija and Simović, Bojana and Žunić, Milan and Dapčević, Aleksandra",
year = "2022",
abstract = "Titanium dioxide is the most suitable semiconductor for photocatalytic application due
to its high efficiency, increased stability, low-cost, and non-toxicity. However, it is
possible to enhance the photocatalytic activity of TiO2 by homogenizing it with
conductive polymers. One of the most attractive conductive polymers is polypyrrole
(PPy) owing to its stability, low-cost, and special redox properties. The aim of this work
was to obtain the TiO2/PPy nanocomposites with a higher photocatalytic activity
compared to TiO2. In order to determine the optimal content of PPy, four TiO2/x%PPy
samples (x = 0, 1, 3, and 5 wt.%) were synthesized and characterized by XRD and
TG/DSC analyses. The photocatalytic activity was examined towards the degradation of
toxic textile azo dye Reactive Orange 16. It was observed that an increase in PPy content
led to better adsorption capacity of the synthesized nanocomposites. Samples
TiO2/1%PPy and TiO2/5%PPy demonstrated better photocatalytic activity than TiO2,
while TiO2/3%PPy showed very similar photocatalytic activity to TiO2. Near complete
degradation of the dye (98 %) was reached in 75 min by using TiO2/1%PPy, comparing
to pure TiO2, which degraded the same amount of the dye in 120 min. Considering all
the obtained results, the optimal content of PPy in the composite for degradation of
Reactive Orange 16 is 1 wt.%.",
publisher = "Serbian Chemical Society",
journal = "Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts",
title = "Highly efficient TiO2/Ppy photocatalysts",
pages = "93",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1987"
}

Milojković, N., Simović, B., Žunić, M.,& Dapčević, A.. (2022). Highly efficient TiO2/Ppy photocatalysts. in Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts
Serbian Chemical Society., 93.
https://hdl.handle.net/21.15107/rcub_rimsi_1987

Milojković N, Simović B, Žunić M, Dapčević A. Highly efficient TiO2/Ppy photocatalysts. in Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts. 2022;:93.
https://hdl.handle.net/21.15107/rcub_rimsi_1987 .

Milojković, Natalija, Simović, Bojana, Žunić, Milan, Dapčević, Aleksandra, "Highly efficient TiO2/Ppy photocatalysts" in Eight Conference of the Young Chemists of  Serbia, Belgrade, Book of Abstracts (2022):93,
https://hdl.handle.net/21.15107/rcub_rimsi_1987 .