TY  - JOUR
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Krstić, Jugoslav B.
AU  - Finšgar, Matjaž
AU  - Solonenko, Dmytro
AU  - Bartolić, Dragana
AU  - Tadić, Nenad B.
AU  - Mišković, Goran
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2024
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3204
AB  - In this paper, we have systematically studied the structural, morphological, and optical properties of Ni-doped TiO2, synthesized via a simple, cost-effective electrospinning method followed by calcination at 500 C. The nanofibers with a core-shell structure were relatively homogeneous, smooth and randomly oriented, and there were no significant differences in fiber diameters due to Ni2+ content. Core loss mapping using electron energy loss spectroscopy confirmed an even distribution of titanium and relatively uniform nickel in the fibers. It was found that doping with 0.5 mol.% Ni2+ decreased the rutile content, while doping with 1 mol.% Ni2+ resulted in a pure anatase phase with a significantly increased specific surface area (36.6 m2/g). Further increase in Ni2+ content (3-10 mol.%) not only prolonged the response of TiO2 nanofibers to visible light, but also increased the specific surface area (49.5 m2/g), decreased crystallite size (7 nm), and increased rutile content in TiO2 (33 wt.%). Photoluminescence analysis revealed that doping TiO2 with different amounts of Ni2+ leads to a gradual decrease of emission spectra intensity and red shift in the maxima positions. The XPS results confirmed that as the Ni2+ content enlarged, the Ti2+ and Ti3+ content increased significantly, effectively promoting the formation of oxygen vacancies. Raman analysis showed that an increase in nickel content (3-5 mol.%) led to a decrease and shift in peak intensity due to Ti3+ formation and also the possible presence of NiTiO3 phases. HRTEM analysis showed that Ni was doped into the substitution sites of both the anatase and rutile TiO2 lattice but had a stronger influence on the distortion of the anatase phase. The photocatalytic activity of Ni-doped TiO2 nanofibers was explored by analyzing the degradation of an antibiotic, oxytetracycline, monitored in laboratory conditions under visible light irradiation. After 60 minutes of irradiation, the degradation  of OTC with 1Ni-TiO2 reached 76.4% and with 10Ni-TiO2 70.5%.
PB  - Elsevier
T2  - Surfaces and Interfaces
T1  - Looking Into How Nickel Doping Affects the Structure, Morphology, and Optical Properties of TiO2 Nanofibers
SP  - 104434
VL  - 49
DO  - 10.1016/j.surfin.2024.104434
ER  - 

@article{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Krstić, Jugoslav B. and Finšgar, Matjaž and Solonenko, Dmytro and Bartolić, Dragana and Tadić, Nenad B. and Mišković, Goran and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2024",
abstract = "In this paper, we have systematically studied the structural, morphological, and optical properties of Ni-doped TiO2, synthesized via a simple, cost-effective electrospinning method followed by calcination at 500 C. The nanofibers with a core-shell structure were relatively homogeneous, smooth and randomly oriented, and there were no significant differences in fiber diameters due to Ni2+ content. Core loss mapping using electron energy loss spectroscopy confirmed an even distribution of titanium and relatively uniform nickel in the fibers. It was found that doping with 0.5 mol.% Ni2+ decreased the rutile content, while doping with 1 mol.% Ni2+ resulted in a pure anatase phase with a significantly increased specific surface area (36.6 m2/g). Further increase in Ni2+ content (3-10 mol.%) not only prolonged the response of TiO2 nanofibers to visible light, but also increased the specific surface area (49.5 m2/g), decreased crystallite size (7 nm), and increased rutile content in TiO2 (33 wt.%). Photoluminescence analysis revealed that doping TiO2 with different amounts of Ni2+ leads to a gradual decrease of emission spectra intensity and red shift in the maxima positions. The XPS results confirmed that as the Ni2+ content enlarged, the Ti2+ and Ti3+ content increased significantly, effectively promoting the formation of oxygen vacancies. Raman analysis showed that an increase in nickel content (3-5 mol.%) led to a decrease and shift in peak intensity due to Ti3+ formation and also the possible presence of NiTiO3 phases. HRTEM analysis showed that Ni was doped into the substitution sites of both the anatase and rutile TiO2 lattice but had a stronger influence on the distortion of the anatase phase. The photocatalytic activity of Ni-doped TiO2 nanofibers was explored by analyzing the degradation of an antibiotic, oxytetracycline, monitored in laboratory conditions under visible light irradiation. After 60 minutes of irradiation, the degradation  of OTC with 1Ni-TiO2 reached 76.4% and with 10Ni-TiO2 70.5%.",
publisher = "Elsevier",
journal = "Surfaces and Interfaces",
title = "Looking Into How Nickel Doping Affects the Structure, Morphology, and Optical Properties of TiO2 Nanofibers",
pages = "104434",
volume = "49",
doi = "10.1016/j.surfin.2024.104434"
}

Ahmetović, S., Vasiljević, Z. Z., Krstić, J. B., Finšgar, M., Solonenko, D., Bartolić, D., Tadić, N. B., Mišković, G., Cvjetićanin, N.,& Nikolić, M. V.. (2024). Looking Into How Nickel Doping Affects the Structure, Morphology, and Optical Properties of TiO2 Nanofibers. in Surfaces and Interfaces
Elsevier., 49, 104434.
https://doi.org/10.1016/j.surfin.2024.104434

Ahmetović S, Vasiljević ZZ, Krstić JB, Finšgar M, Solonenko D, Bartolić D, Tadić NB, Mišković G, Cvjetićanin N, Nikolić MV. Looking Into How Nickel Doping Affects the Structure, Morphology, and Optical Properties of TiO2 Nanofibers. in Surfaces and Interfaces. 2024;49:104434.
doi:10.1016/j.surfin.2024.104434 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Krstić, Jugoslav B., Finšgar, Matjaž, Solonenko, Dmytro, Bartolić, Dragana, Tadić, Nenad B., Mišković, Goran, Cvjetićanin, Nikola, Nikolić, Maria Vesna, "Looking Into How Nickel Doping Affects the Structure, Morphology, and Optical Properties of TiO2 Nanofibers" in Surfaces and Interfaces, 49 (2024):104434,
https://doi.org/10.1016/j.surfin.2024.104434 . .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Rajić, Vladimir
AU  - Bartolić, Dragana
AU  - Novaković, Mirjana
AU  - Tadić, Nenad B.
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2158
AB  - In this work, titanium dioxide (TiO2) nanofibers doped with 0.5–5 mol% 
zirconium ions (Zr4+) were synthesized by combining the sol-gel process and 
electrospinning method, and calcined at 500 °C. The morphological, structural and 
optical properties of pure and Zr-doped TiO2 nanofibers were investigated. According to 
the XRD and FTIR analyses, the addition of Zr as a dopant suppressed the 
transformation of anatase to rutile phase. Scanning electron microscopy showed that all 
fibers were smooth, fragile and randomly oriented after the calcination process. HRTEM 
analysis revealed that Zr4+ ions were incorporated at the substitutional sites in the anatase 
TiO2 crystalline lattice. The photocatalytic efficiency for degradation of methylene blue 
(MB) was examined for both pure and Zr-doped TiO2 samples. Nanofibers doped with 
1% of Zr4+ ions have shown the highest photocatalytic activity of 98%, wich can be 
explained by considering lower PL intensity in the PL spectrum of this sample, 
indicating suppressed electron-hole recombination.
PB  - Faculty of Technology, University of Novi Sad  Bul. cara Lazara 1, 21000 Novi Sad, Serbia
C3  - Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad
T1  - INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES
SP  - 134/OA-101
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2158
ER  - 

@conference{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Rajić, Vladimir and Bartolić, Dragana and Novaković, Mirjana and Tadić, Nenad B. and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2023",
abstract = "In this work, titanium dioxide (TiO2) nanofibers doped with 0.5–5 mol% 
zirconium ions (Zr4+) were synthesized by combining the sol-gel process and 
electrospinning method, and calcined at 500 °C. The morphological, structural and 
optical properties of pure and Zr-doped TiO2 nanofibers were investigated. According to 
the XRD and FTIR analyses, the addition of Zr as a dopant suppressed the 
transformation of anatase to rutile phase. Scanning electron microscopy showed that all 
fibers were smooth, fragile and randomly oriented after the calcination process. HRTEM 
analysis revealed that Zr4+ ions were incorporated at the substitutional sites in the anatase 
TiO2 crystalline lattice. The photocatalytic efficiency for degradation of methylene blue 
(MB) was examined for both pure and Zr-doped TiO2 samples. Nanofibers doped with 
1% of Zr4+ ions have shown the highest photocatalytic activity of 98%, wich can be 
explained by considering lower PL intensity in the PL spectrum of this sample, 
indicating suppressed electron-hole recombination.",
publisher = "Faculty of Technology, University of Novi Sad  Bul. cara Lazara 1, 21000 Novi Sad, Serbia",
journal = "Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad",
title = "INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES",
pages = "134/OA-101",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2158"
}

Ahmetović, S., Vasiljević, Z. Z., Rajić, V., Bartolić, D., Novaković, M., Tadić, N. B., Cvjetićanin, N.,& Nikolić, M. V.. (2023). INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES. in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad
Faculty of Technology, University of Novi Sad  Bul. cara Lazara 1, 21000 Novi Sad, Serbia., 134/OA-101.
https://hdl.handle.net/21.15107/rcub_rimsi_2158

Ahmetović S, Vasiljević ZZ, Rajić V, Bartolić D, Novaković M, Tadić NB, Cvjetićanin N, Nikolić MV. INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES. in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad. 2023;:134/OA-101.
https://hdl.handle.net/21.15107/rcub_rimsi_2158 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Rajić, Vladimir, Bartolić, Dragana, Novaković, Mirjana, Tadić, Nenad B., Cvjetićanin, Nikola, Nikolić, Maria Vesna, "INVESTIGATING THE EFFECTS OF Zr DOPING ON THE TITANIUM  DIOXIDE NANOFIBRES" in Programme and book of abstracts / 15th ECerS Conference for Young Scientists in Ceramics, October 11-14, 2023, Novi Sad (2023):134/OA-101,
https://hdl.handle.net/21.15107/rcub_rimsi_2158 .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Rajić, Vladmir
AU  - Bartolić, Dragana
AU  - Novaković, Mirjana
AU  - Tadić, Nenad B.
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2153
AB  - Pure, samarium (Sm3+) and zirconium (Zr4+) doped titanium dioxide (TiO2) 
nanofibers were synthesized using the electrospinning method followed by 
calcination at 500 °C for 1 h. The structure, morphology and optical properties of the 
obtained nanofibers were investigated as a function of different Sm3+ and Zr4+ 
contents (0.5–5 mol%). XRD and FTIR analysis showed that addition of Sm or Zr 
suppressed the transformation of anatase to rutile. After calcination all fibers were 
smooth, fragile and randomly oriented. HRTEM analysis revealed that doping with 
Sm didn’t affect the TiO2 crystal lattice whilst Zr4+ ions replaced the substitutional 
sites in the anatase crystalline lattice. The effects of Sm3+ and Zr4+-dopant content 
and different doses of photocatalyst on the photodegradation of methylene blue 
(MB) were monitored under UV-light illumination. TiO2:0.5%Sm3+ and 
TiO2:1.0%Zr4+ nanofibers have shown the highest photocatalytic activity of 97% 
and 98% due to red shifting of the band gap towards visible light in the case of Sm 
and suppressed electron-hole recombination shown in recorded PL spectra in the 
case of Zr.
PB  - Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
T1  - SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY
SP  - 61/O-1
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2153
ER  - 

@conference{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Rajić, Vladmir and Bartolić, Dragana and Novaković, Mirjana and Tadić, Nenad B. and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2023",
abstract = "Pure, samarium (Sm3+) and zirconium (Zr4+) doped titanium dioxide (TiO2) 
nanofibers were synthesized using the electrospinning method followed by 
calcination at 500 °C for 1 h. The structure, morphology and optical properties of the 
obtained nanofibers were investigated as a function of different Sm3+ and Zr4+ 
contents (0.5–5 mol%). XRD and FTIR analysis showed that addition of Sm or Zr 
suppressed the transformation of anatase to rutile. After calcination all fibers were 
smooth, fragile and randomly oriented. HRTEM analysis revealed that doping with 
Sm didn’t affect the TiO2 crystal lattice whilst Zr4+ ions replaced the substitutional 
sites in the anatase crystalline lattice. The effects of Sm3+ and Zr4+-dopant content 
and different doses of photocatalyst on the photodegradation of methylene blue 
(MB) were monitored under UV-light illumination. TiO2:0.5%Sm3+ and 
TiO2:1.0%Zr4+ nanofibers have shown the highest photocatalytic activity of 97% 
and 98% due to red shifting of the band gap towards visible light in the case of Sm 
and suppressed electron-hole recombination shown in recorded PL spectra in the 
case of Zr.",
publisher = "Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia",
title = "SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY",
pages = "61/O-1",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2153"
}

Ahmetović, S., Vasiljević, Z. Z., Rajić, V., Bartolić, D., Novaković, M., Tadić, N. B., Cvjetićanin, N.,& Nikolić, M. V.. (2023). SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia
Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia., 61/O-1.
https://hdl.handle.net/21.15107/rcub_rimsi_2153

Ahmetović S, Vasiljević ZZ, Rajić V, Bartolić D, Novaković M, Tadić NB, Cvjetićanin N, Nikolić MV. SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY. in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia. 2023;:61/O-1.
https://hdl.handle.net/21.15107/rcub_rimsi_2153 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Rajić, Vladmir, Bartolić, Dragana, Novaković, Mirjana, Tadić, Nenad B., Cvjetićanin, Nikola, Nikolić, Maria Vesna, "SYNTHESIS AND CHARACTERIZATION OF PURE AND  Sm-, Zr-DOPED TiO2 NANOFIBERS AND ITS  PHOTOCATALYTIC ACTIVITY" in Programme and the Book of Abstracts / 7th Conference of The Serbian Society for Ceramic Materials, 7CSCS-2023, June 14-16, 2023 Belgrade, Serbia (2023):61/O-1,
https://hdl.handle.net/21.15107/rcub_rimsi_2153 .

TY  - JOUR
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Rajić, Vladimir
AU  - Bartolić, Dragana
AU  - Novaković, Mirjana
AU  - Tadić, Nenad B.
AU  - Cvjetićanin, Nikola
AU  - Nikolić, Maria Vesna
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1578
AB  - Pure and samarium (Sm3+) - or zirconium (Zr4+)-doped TiO2 nanofibers were synthesized by  electro- 
spinning method followed by calcination at 500 °C for 1 h. As-spun fibers were smooth, straight and 
continuous, whilst EDS analysis confirmed the fiber composition and incorporation  of  dopants  in  
the  fibers. Doping with Sm3+ and Zr4+ greatly inhibited the phase transformation of anatase to 
rutile, by surrounding of Sm3+ ions through formation of Ti-O-Sm bonds  and  by  replacement  of  
Ti4+  ions  with  larger Zr4+ ions. This was confirmed by HRTEM and SAED analysis. The size of 
nanofibers was determined to be 133 nm, 175 nm and 155 nm for pure, (0.5%)Sm3+:TiO2 and 
(1%)Zr4+:TiO2, respectively. After  cal- cination, TiO2 crystal lattice with interplanar spacing of 
0.353 nm of (101) crystal  plane  was not  significantly disturbed by Sm doping whilst  crystal  
lattice  spacing  of  0.357  nm  of  (101)  planes  of anatase  phase  in  case  TiO2:1.0%Zr4+,  
significantly  differs  from  the  value  of  pure  TiO2   (0.352  nm),  thus implying that Zr was 
doped into substitutional  sites  of  the  TiO2  lattice.  The  indirect  band  gaps  were 
calculated to be in the range  3.07–3.24  eV.  TiO2:0.5%Sm3+ and  TiO2:1.0%Zr4+ exhibited  higher  
specific surface area, of 47.1  and 59.4 m2/g, respectively, than pure TiO2  fibers (19.7 m2/g). 
Effects of Sm3+ and Zr4+ dopant content on the photodegradation efficiency of methylene blue (MB) 
were studied. TiO2:0.5%Sm3+ and TiO2:1.0%Zr4+ nanofibers have shown  the  highest  photocatalytic  
activity  of  97%  and 98%  with  constant  rates  0.01768  min−1  and  0.01939  min−1,  
respectively,  within180  min irradiation under
visible light.
PB  - Elsevier
T2  - Journal of Alloys and Compounds
T1  - Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers
SP  - 167423
VL  - 930
DO  - 10.1016/j.jallcom.2022.167423
ER  - 

@article{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Rajić, Vladimir and Bartolić, Dragana and Novaković, Mirjana and Tadić, Nenad B. and Cvjetićanin, Nikola and Nikolić, Maria Vesna",
year = "2023",
abstract = "Pure and samarium (Sm3+) - or zirconium (Zr4+)-doped TiO2 nanofibers were synthesized by  electro- 
spinning method followed by calcination at 500 °C for 1 h. As-spun fibers were smooth, straight and 
continuous, whilst EDS analysis confirmed the fiber composition and incorporation  of  dopants  in  
the  fibers. Doping with Sm3+ and Zr4+ greatly inhibited the phase transformation of anatase to 
rutile, by surrounding of Sm3+ ions through formation of Ti-O-Sm bonds  and  by  replacement  of  
Ti4+  ions  with  larger Zr4+ ions. This was confirmed by HRTEM and SAED analysis. The size of 
nanofibers was determined to be 133 nm, 175 nm and 155 nm for pure, (0.5%)Sm3+:TiO2 and 
(1%)Zr4+:TiO2, respectively. After  cal- cination, TiO2 crystal lattice with interplanar spacing of 
0.353 nm of (101) crystal  plane  was not  significantly disturbed by Sm doping whilst  crystal  
lattice  spacing  of  0.357  nm  of  (101)  planes  of anatase  phase  in  case  TiO2:1.0%Zr4+,  
significantly  differs  from  the  value  of  pure  TiO2   (0.352  nm),  thus implying that Zr was 
doped into substitutional  sites  of  the  TiO2  lattice.  The  indirect  band  gaps  were 
calculated to be in the range  3.07–3.24  eV.  TiO2:0.5%Sm3+ and  TiO2:1.0%Zr4+ exhibited  higher  
specific surface area, of 47.1  and 59.4 m2/g, respectively, than pure TiO2  fibers (19.7 m2/g). 
Effects of Sm3+ and Zr4+ dopant content on the photodegradation efficiency of methylene blue (MB) 
were studied. TiO2:0.5%Sm3+ and TiO2:1.0%Zr4+ nanofibers have shown  the  highest  photocatalytic  
activity  of  97%  and 98%  with  constant  rates  0.01768  min−1  and  0.01939  min−1,  
respectively,  within180  min irradiation under
visible light.",
publisher = "Elsevier",
journal = "Journal of Alloys and Compounds",
title = "Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers",
pages = "167423",
volume = "930",
doi = "10.1016/j.jallcom.2022.167423"
}

Ahmetović, S., Vasiljević, Z. Z., Rajić, V., Bartolić, D., Novaković, M., Tadić, N. B., Cvjetićanin, N.,& Nikolić, M. V.. (2023). Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers. in Journal of Alloys and Compounds
Elsevier., 930, 167423.
https://doi.org/10.1016/j.jallcom.2022.167423

Ahmetović S, Vasiljević ZZ, Rajić V, Bartolić D, Novaković M, Tadić NB, Cvjetićanin N, Nikolić MV. Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers. in Journal of Alloys and Compounds. 2023;930:167423.
doi:10.1016/j.jallcom.2022.167423 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Rajić, Vladimir, Bartolić, Dragana, Novaković, Mirjana, Tadić, Nenad B., Cvjetićanin, Nikola, Nikolić, Maria Vesna, "Examination of the doping effects of samarium (Sm3+) and zirconium (Zr4+) on the photocatalytic  activity of TiO2  nanofibers" in Journal of Alloys and Compounds, 930 (2023):167423,
https://doi.org/10.1016/j.jallcom.2022.167423 . .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Vasiljević, Zorka Z
AU  - Cvjetićanin, Nikola
AU  - Vujančević, Jelena
AU  - Tadić, Nenad B.
AU  - Pavlović, Vladimir B.
AU  - Nikolić, Maria Vesna
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2154
AB  - Samarium and zirconium-doped TiO2 nanofibers (3 and 5 wt.%) were synthesised by a 
simple modified electrospinning method. The effects of calcination temperature on the size 
of the as-spun doped titania fibers was investigated. As-spun nanofibers were studied and 
characterized through thermal gravimetric analysis (TG-DTA), Fourier Transform Infrared 
Spectroscopy (FTIR) and Scanning electron microscopy (SEM), while the structure and 
morphology of calcined fibers was studied by X-Ray Diffraction (XRD), Field Emission 
Electron Microscopy (FESEM) and spectroscopic techniques (FT-IR and DRS UV-vis). The 
influence of dopant type and amount on the photocatalytic degradation of Methylene blue 
(MB) was investigated.
PB  - Institute of Technical Sciences of SASA  Knez Mihailova 35/IV, 11000 Belgrade, Serbia
C3  - Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia.
T1  - Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity
SP  - 24/5-2
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2154
ER  - 

@conference{
author = "Ahmetović, Sanita and Vasiljević, Zorka Z and Cvjetićanin, Nikola and Vujančević, Jelena and Tadić, Nenad B. and Pavlović, Vladimir B. and Nikolić, Maria Vesna",
year = "2021",
abstract = "Samarium and zirconium-doped TiO2 nanofibers (3 and 5 wt.%) were synthesised by a 
simple modified electrospinning method. The effects of calcination temperature on the size 
of the as-spun doped titania fibers was investigated. As-spun nanofibers were studied and 
characterized through thermal gravimetric analysis (TG-DTA), Fourier Transform Infrared 
Spectroscopy (FTIR) and Scanning electron microscopy (SEM), while the structure and 
morphology of calcined fibers was studied by X-Ray Diffraction (XRD), Field Emission 
Electron Microscopy (FESEM) and spectroscopic techniques (FT-IR and DRS UV-vis). The 
influence of dopant type and amount on the photocatalytic degradation of Methylene blue 
(MB) was investigated.",
publisher = "Institute of Technical Sciences of SASA  Knez Mihailova 35/IV, 11000 Belgrade, Serbia",
journal = "Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia.",
title = "Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity",
pages = "24/5-2",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2154"
}

Ahmetović, S., Vasiljević, Z. Z., Cvjetićanin, N., Vujančević, J., Tadić, N. B., Pavlović, V. B.,& Nikolić, M. V.. (2021). Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia.
Institute of Technical Sciences of SASA  Knez Mihailova 35/IV, 11000 Belgrade, Serbia., 24/5-2.
https://hdl.handle.net/21.15107/rcub_rimsi_2154

Ahmetović S, Vasiljević ZZ, Cvjetićanin N, Vujančević J, Tadić NB, Pavlović VB, Nikolić MV. Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity. in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia.. 2021;:24/5-2.
https://hdl.handle.net/21.15107/rcub_rimsi_2154 .

Ahmetović, Sanita, Vasiljević, Zorka Z, Cvjetićanin, Nikola, Vujančević, Jelena, Tadić, Nenad B., Pavlović, Vladimir B., Nikolić, Maria Vesna, "Synthesis of Samarium and Zirconium-doped TiO2 nanofibers with improved photocatalytic activity" in Program and the Book of abstracts / Nineteenth Young Researchers' Conference Materials Science and Engineering, December 1-3, 2021, Belgrade, Serbia. (2021):24/5-2,
https://hdl.handle.net/21.15107/rcub_rimsi_2154 .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Tasić, Nikola
AU  - Žunić, Milan
AU  - Dapčević, Aleksandra
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2474
AB  - In this work we present detailed optimization of the titania-based electrospun
nanofibers fabrication procedure. The starting solutions were prepared from
stabilized titanium (IV) isopropoxide and different polymers, such as PCL
(polycaprolactone) and PVP (polyvinylpyrrolidone). We report on the correlation
between the processing parameters and functional properties of as synthesized
fibers. Microstructural analyses performed on SEM and FE-SEM have revealed
branchy morphology of nanofibers uniform in shape and size. Anatase phase in as
prepared and calcined samples was disclosed by in-depth analysis of TEM images
and SAED spectra. The obtained fibers were used in UV/Vis photocatalytic reactor
for degradation of dye-contaminated water solutions. Promising results were
observed showing improved behavior compared to referent samples. Furthermore,
the influence of various dopants on the photocatalytic properties was investigated.
PB  - Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia
C3  - Programme and the Book of Abstracts 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - TITANIA-BASED ELECTROSPUN NANOFIBERS AND THEIR PHOTOCATALYTIC PERFORMANCE
SP  - 123/P-56
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2474
ER  - 

@conference{
author = "Ahmetović, Sanita and Tasić, Nikola and Žunić, Milan and Dapčević, Aleksandra and Branković, Zorica and Branković, Goran",
year = "2019",
abstract = "In this work we present detailed optimization of the titania-based electrospun
nanofibers fabrication procedure. The starting solutions were prepared from
stabilized titanium (IV) isopropoxide and different polymers, such as PCL
(polycaprolactone) and PVP (polyvinylpyrrolidone). We report on the correlation
between the processing parameters and functional properties of as synthesized
fibers. Microstructural analyses performed on SEM and FE-SEM have revealed
branchy morphology of nanofibers uniform in shape and size. Anatase phase in as
prepared and calcined samples was disclosed by in-depth analysis of TEM images
and SAED spectra. The obtained fibers were used in UV/Vis photocatalytic reactor
for degradation of dye-contaminated water solutions. Promising results were
observed showing improved behavior compared to referent samples. Furthermore,
the influence of various dopants on the photocatalytic properties was investigated.",
publisher = "Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia",
journal = "Programme and the Book of Abstracts 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "TITANIA-BASED ELECTROSPUN NANOFIBERS AND THEIR PHOTOCATALYTIC PERFORMANCE",
pages = "123/P-56",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2474"
}

Ahmetović, S., Tasić, N., Žunić, M., Dapčević, A., Branković, Z.,& Branković, G.. (2019). TITANIA-BASED ELECTROSPUN NANOFIBERS AND THEIR PHOTOCATALYTIC PERFORMANCE. in Programme and the Book of Abstracts 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia., 123/P-56.
https://hdl.handle.net/21.15107/rcub_rimsi_2474

Ahmetović S, Tasić N, Žunić M, Dapčević A, Branković Z, Branković G. TITANIA-BASED ELECTROSPUN NANOFIBERS AND THEIR PHOTOCATALYTIC PERFORMANCE. in Programme and the Book of Abstracts 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:123/P-56.
https://hdl.handle.net/21.15107/rcub_rimsi_2474 .

Ahmetović, Sanita, Tasić, Nikola, Žunić, Milan, Dapčević, Aleksandra, Branković, Zorica, Branković, Goran, "TITANIA-BASED ELECTROSPUN NANOFIBERS AND THEIR PHOTOCATALYTIC PERFORMANCE" in Programme and the Book of Abstracts 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):123/P-56,
https://hdl.handle.net/21.15107/rcub_rimsi_2474 .

TY  - JOUR
AU  - Marković, Smilja
AU  - Stojkovic-Simatović, Ivana
AU  - Ahmetović, Sanita
AU  - Veselinović, Ljiljana
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Skapin, Sreco Davor
AU  - Bajuk-Bogdanović, Danica
AU  - Jankovic-Castvan, Ivona
AU  - Uskoković, Dragan
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1234
AB  - ZnO nanopowders were produced using microwave processing of a precipitate and applied as a photoanode for photoelectrochemical water splitting. Two different surfactants, cetyltrimethylammonium bromide (CTAB) as the cationic and Pluronic F127 as the non-ionic one, were employed to in situ adjust the surface-to-bulk defect ratio in the ZnO crystal structure and further to modify the photo(electro)catalytic activity of the ZnO photoanode. The crystal structure, morphological, textural, optical and photo(electro)catalytic properties of ZnO particles were studied in detail to explain the profound effects of the surfactants on the photoanode activity. The ZnO/CTAB photoanode displayed the highest photocurrent density of 27 mA g(-1), compared to ZnO (10.4 mA g(-1)) and ZnO/F127 photoanodes (20 mA g(-1)) at 1.5 V vs. SCE in 0.1 M Na2SO4 under visible illumination of 90 mW cm(-2). A significant shift of the overpotential toward lower values was also observed when photoanodes were illuminated. The highest shift of the overpotential, from 1.296 to 0.248 V vs. SCE, was recorded when the ZnO/CTAB photanode was illuminated. The ZnO/CTAB photoanode provides efficient charge transfer across the electrode/electrolyte interface, with a longer lifetime of photogenerated electron-hole pairs and reduced possibility of charge recombination. The photoconversion efficiency was improved from 1.4% for ZnO and 0.9% for ZnO/F127 to 4.2% for ZnO/CTAB at 0.510 mV. A simple procedure for the synthesis of ZnO particles with improved photo(electro)catalytic properties was established and it was found that even a small amount of CTAB used during processing of ZnO increases the surface-to-bulk defect ratio. Optimization of the surface-to-bulk defect ratio in ZnO materials enables increase of the absorption capacity for visible light, rendering of the recombination rate of the photogenerated pair, as well as increase of both the photocurrent density and photoconversion efficiency.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties
EP  - 17178
IS  - 30
SP  - 17165
VL  - 9
DO  - 10.1039/c9ra02553g
ER  - 

@article{
author = "Marković, Smilja and Stojkovic-Simatović, Ivana and Ahmetović, Sanita and Veselinović, Ljiljana and Stojadinović, Stevan and Rac, Vladislav and Skapin, Sreco Davor and Bajuk-Bogdanović, Danica and Jankovic-Castvan, Ivona and Uskoković, Dragan",
year = "2019",
abstract = "ZnO nanopowders were produced using microwave processing of a precipitate and applied as a photoanode for photoelectrochemical water splitting. Two different surfactants, cetyltrimethylammonium bromide (CTAB) as the cationic and Pluronic F127 as the non-ionic one, were employed to in situ adjust the surface-to-bulk defect ratio in the ZnO crystal structure and further to modify the photo(electro)catalytic activity of the ZnO photoanode. The crystal structure, morphological, textural, optical and photo(electro)catalytic properties of ZnO particles were studied in detail to explain the profound effects of the surfactants on the photoanode activity. The ZnO/CTAB photoanode displayed the highest photocurrent density of 27 mA g(-1), compared to ZnO (10.4 mA g(-1)) and ZnO/F127 photoanodes (20 mA g(-1)) at 1.5 V vs. SCE in 0.1 M Na2SO4 under visible illumination of 90 mW cm(-2). A significant shift of the overpotential toward lower values was also observed when photoanodes were illuminated. The highest shift of the overpotential, from 1.296 to 0.248 V vs. SCE, was recorded when the ZnO/CTAB photanode was illuminated. The ZnO/CTAB photoanode provides efficient charge transfer across the electrode/electrolyte interface, with a longer lifetime of photogenerated electron-hole pairs and reduced possibility of charge recombination. The photoconversion efficiency was improved from 1.4% for ZnO and 0.9% for ZnO/F127 to 4.2% for ZnO/CTAB at 0.510 mV. A simple procedure for the synthesis of ZnO particles with improved photo(electro)catalytic properties was established and it was found that even a small amount of CTAB used during processing of ZnO increases the surface-to-bulk defect ratio. Optimization of the surface-to-bulk defect ratio in ZnO materials enables increase of the absorption capacity for visible light, rendering of the recombination rate of the photogenerated pair, as well as increase of both the photocurrent density and photoconversion efficiency.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties",
pages = "17178-17165",
number = "30",
volume = "9",
doi = "10.1039/c9ra02553g"
}

Marković, S., Stojkovic-Simatović, I., Ahmetović, S., Veselinović, L., Stojadinović, S., Rac, V., Skapin, S. D., Bajuk-Bogdanović, D., Jankovic-Castvan, I.,& Uskoković, D.. (2019). Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties. in RSC Advances
Royal Soc Chemistry, Cambridge., 9(30), 17165-17178.
https://doi.org/10.1039/c9ra02553g

Marković S, Stojkovic-Simatović I, Ahmetović S, Veselinović L, Stojadinović S, Rac V, Skapin SD, Bajuk-Bogdanović D, Jankovic-Castvan I, Uskoković D. Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties. in RSC Advances. 2019;9(30):17165-17178.
doi:10.1039/c9ra02553g .

Marković, Smilja, Stojkovic-Simatović, Ivana, Ahmetović, Sanita, Veselinović, Ljiljana, Stojadinović, Stevan, Rac, Vladislav, Skapin, Sreco Davor, Bajuk-Bogdanović, Danica, Jankovic-Castvan, Ivona, Uskoković, Dragan, "Surfactant-assisted microwave processing of ZnO particles: a simple way for designing the surface-to-bulk defect ratio and improving photo(electro)catalytic properties" in RSC Advances, 9, no. 30 (2019):17165-17178,
https://doi.org/10.1039/c9ra02553g . .

TY  - CONF
AU  - Marković, Smilja
AU  - Stojković Simatović, Ivana
AU  - Ahmetović, Sanita
AU  - Veselinović, Ljiljana
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Škapin, Srečo Davor
AU  - Uskoković, Dragan
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2970
AB  - Zinc oxide-based materials have a great potential to be applied as photocatalysts in the processes
of removal of organic and biological pollutants from drinking and wastewaters. A major
drawback of ZnO as visible-light absorber is a band energy gap of 3.37 eV, which restricts the
material to absorb UV light only. This drawback can be overcame by modifying the optical
absorption properties of zinc oxide particles. Different approaches have been applied to modify
the visible light photocatalytic activity of ZnO materials: (1) metal and nonmetal ion doping, (2)
hydrogenation, (3) the incorporation of crystalline defects in the form of vacancies and
interstitials, (4) the modification of particles morphology and surface topology, etc.
In this study we investigated the influence of different surfactants on the morphology, optical
properties and functionality of ZnO particles. Two different surfactants were employed during
microwave processing of ZnO particles, cetyltrimethylammonium bromide (CTAB) as cationic
and Pluronic F-127 as non-ionic one. The crystal structure and phase purity of the ZnO particles
were determined by X-ray diffraction and Raman spectroscopy. Effects of the surfactants on
particles morphology and texture properties were observed with field emission scanning electron
microscopy (FE–SEM) and nitrogen adsorption–desorption isotherm, respectively. The optical
properties were studied using UV–Vis diffuse reflectance and photoluminescence (PL)
spectroscopy. Functionality of ZnO particles was studied due to their photocatalytic and
electrochemical activities. Photocatalytic activity was examined via decolorization of methylene
blue under direct sunlight irradiation. Electrochemical behavior of the ZnO samples as anode
material was evaluated by linear sweep voltammetry in Na2SO4
 electrolyte; the oxygen evolution
kinetics were determined and compared.
PB  - Materials Research Society of Serbia Knez Mihailova 35/IV, P.O.Box 433, 11000 Belgrade, Serbia
C3  - Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018
T1  - CTAB- and pluronic F-127-assisted microwave processing of ZnO particles with modified morphology and optical properties
SP  - 70/O.S.II.9
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2970
ER  - 

@conference{
author = "Marković, Smilja and Stojković Simatović, Ivana and Ahmetović, Sanita and Veselinović, Ljiljana and Stojadinović, Stevan and Rac, Vladislav and Škapin, Srečo Davor and Uskoković, Dragan",
year = "2018",
abstract = "Zinc oxide-based materials have a great potential to be applied as photocatalysts in the processes
of removal of organic and biological pollutants from drinking and wastewaters. A major
drawback of ZnO as visible-light absorber is a band energy gap of 3.37 eV, which restricts the
material to absorb UV light only. This drawback can be overcame by modifying the optical
absorption properties of zinc oxide particles. Different approaches have been applied to modify
the visible light photocatalytic activity of ZnO materials: (1) metal and nonmetal ion doping, (2)
hydrogenation, (3) the incorporation of crystalline defects in the form of vacancies and
interstitials, (4) the modification of particles morphology and surface topology, etc.
In this study we investigated the influence of different surfactants on the morphology, optical
properties and functionality of ZnO particles. Two different surfactants were employed during
microwave processing of ZnO particles, cetyltrimethylammonium bromide (CTAB) as cationic
and Pluronic F-127 as non-ionic one. The crystal structure and phase purity of the ZnO particles
were determined by X-ray diffraction and Raman spectroscopy. Effects of the surfactants on
particles morphology and texture properties were observed with field emission scanning electron
microscopy (FE–SEM) and nitrogen adsorption–desorption isotherm, respectively. The optical
properties were studied using UV–Vis diffuse reflectance and photoluminescence (PL)
spectroscopy. Functionality of ZnO particles was studied due to their photocatalytic and
electrochemical activities. Photocatalytic activity was examined via decolorization of methylene
blue under direct sunlight irradiation. Electrochemical behavior of the ZnO samples as anode
material was evaluated by linear sweep voltammetry in Na2SO4
 electrolyte; the oxygen evolution
kinetics were determined and compared.",
publisher = "Materials Research Society of Serbia Knez Mihailova 35/IV, P.O.Box 433, 11000 Belgrade, Serbia",
journal = "Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018",
title = "CTAB- and pluronic F-127-assisted microwave processing of ZnO particles with modified morphology and optical properties",
pages = "70/O.S.II.9",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2970"
}

Marković, S., Stojković Simatović, I., Ahmetović, S., Veselinović, L., Stojadinović, S., Rac, V., Škapin, S. D.,& Uskoković, D.. (2018). CTAB- and pluronic F-127-assisted microwave processing of ZnO particles with modified morphology and optical properties. in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018
Materials Research Society of Serbia Knez Mihailova 35/IV, P.O.Box 433, 11000 Belgrade, Serbia., 70/O.S.II.9.
https://hdl.handle.net/21.15107/rcub_rimsi_2970

Marković S, Stojković Simatović I, Ahmetović S, Veselinović L, Stojadinović S, Rac V, Škapin SD, Uskoković D. CTAB- and pluronic F-127-assisted microwave processing of ZnO particles with modified morphology and optical properties. in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018. 2018;:70/O.S.II.9.
https://hdl.handle.net/21.15107/rcub_rimsi_2970 .

Marković, Smilja, Stojković Simatović, Ivana, Ahmetović, Sanita, Veselinović, Ljiljana, Stojadinović, Stevan, Rac, Vladislav, Škapin, Srečo Davor, Uskoković, Dragan, "CTAB- and pluronic F-127-assisted microwave processing of ZnO particles with modified morphology and optical properties" in Programme and The Book of Abstracts / Twentieth Annual Conference YUCOMAT 2018, Herceg Novi, September 3-7, 2018 (2018):70/O.S.II.9,
https://hdl.handle.net/21.15107/rcub_rimsi_2970 .

TY  - CONF
AU  - Ahmetović, Sanita
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Škapin, Srečo Davor
AU  - Stojković Simatović, Ivana
AU  - Marković, Smilja
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2871
AB  - Due to its optical and electrical properties, low toxicity, chemical and physical stability, as
well as inexpensiveness, zinc oxide (ZnO) based materials have a great potential to be used
as photoelectrode in photo(electro)catalysis. Photo(electro)catalytic activity of ZnO materials
can be improved by modification of particles morphology and surface topology.
In this work, the influence of two different surfactants: cetyltrimethylammonium bromide
(CTAB) and Pluronic F-127, on the crystal structure, morphology, optical and
photo(electro)catalytic properties of ZnO particles, were examined. ZnO powders were
synthesized by microwave processing of a precipitate which was previously prepared by
"drop by drop" method in the presence of the surfactants. The crystal structure and phase
purity of the ZnO particles were determined by X-ray diffraction and Raman spectroscopy.
The effects of the surfactants on ZnO particles morphology were examined by the field
emission scanning electron microscopy (FE-SEM). The optical properties were studied using
UV-Vis diffuse reflectance and photoluminescence spectroscopy. Photocatalytic activity was
examined via decolorization of methylene blue under direct sunlight irradiation. It was found
that synthesized ZnO powders have a significant photocatalytic activity. Electrochemical
properties were studied using linear sweep voltammetry and impedance spectroscopy in
Na2SO4 electrolyte. ZnO powder synthesized in the presence of CTAB (ZnO/CTAB) showed
the most significant reduction of potential and the fastest kinetic of oxygen evolution.
PB  - Institute of Technical Sciences of SASA Knez Mihailova 35/IV, 11000 Belgrade, Serbia
C3  - Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia, 2018, 66-66
T1  - Structural, morphological and optical characteristics of ZnO particles synthesized in the presence of surfactants CTAB and Pluronic F-127
SP  - 66/10-2
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2871
ER  - 

@conference{
author = "Ahmetović, Sanita and Stojadinović, Stevan and Rac, Vladislav and Škapin, Srečo Davor and Stojković Simatović, Ivana and Marković, Smilja",
year = "2018",
abstract = "Due to its optical and electrical properties, low toxicity, chemical and physical stability, as
well as inexpensiveness, zinc oxide (ZnO) based materials have a great potential to be used
as photoelectrode in photo(electro)catalysis. Photo(electro)catalytic activity of ZnO materials
can be improved by modification of particles morphology and surface topology.
In this work, the influence of two different surfactants: cetyltrimethylammonium bromide
(CTAB) and Pluronic F-127, on the crystal structure, morphology, optical and
photo(electro)catalytic properties of ZnO particles, were examined. ZnO powders were
synthesized by microwave processing of a precipitate which was previously prepared by
"drop by drop" method in the presence of the surfactants. The crystal structure and phase
purity of the ZnO particles were determined by X-ray diffraction and Raman spectroscopy.
The effects of the surfactants on ZnO particles morphology were examined by the field
emission scanning electron microscopy (FE-SEM). The optical properties were studied using
UV-Vis diffuse reflectance and photoluminescence spectroscopy. Photocatalytic activity was
examined via decolorization of methylene blue under direct sunlight irradiation. It was found
that synthesized ZnO powders have a significant photocatalytic activity. Electrochemical
properties were studied using linear sweep voltammetry and impedance spectroscopy in
Na2SO4 electrolyte. ZnO powder synthesized in the presence of CTAB (ZnO/CTAB) showed
the most significant reduction of potential and the fastest kinetic of oxygen evolution.",
publisher = "Institute of Technical Sciences of SASA Knez Mihailova 35/IV, 11000 Belgrade, Serbia",
journal = "Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia, 2018, 66-66",
title = "Structural, morphological and optical characteristics of ZnO particles synthesized in the presence of surfactants CTAB and Pluronic F-127",
pages = "66/10-2",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2871"
}

Ahmetović, S., Stojadinović, S., Rac, V., Škapin, S. D., Stojković Simatović, I.,& Marković, S.. (2018). Structural, morphological and optical characteristics of ZnO particles synthesized in the presence of surfactants CTAB and Pluronic F-127. in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia, 2018, 66-66
Institute of Technical Sciences of SASA Knez Mihailova 35/IV, 11000 Belgrade, Serbia., 66/10-2.
https://hdl.handle.net/21.15107/rcub_rimsi_2871

Ahmetović S, Stojadinović S, Rac V, Škapin SD, Stojković Simatović I, Marković S. Structural, morphological and optical characteristics of ZnO particles synthesized in the presence of surfactants CTAB and Pluronic F-127. in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia, 2018, 66-66. 2018;:66/10-2.
https://hdl.handle.net/21.15107/rcub_rimsi_2871 .

Ahmetović, Sanita, Stojadinović, Stevan, Rac, Vladislav, Škapin, Srečo Davor, Stojković Simatović, Ivana, Marković, Smilja, "Structural, morphological and optical characteristics of ZnO particles synthesized in the presence of surfactants CTAB and Pluronic F-127" in Program and the Book of Abstracts / Seventeenth Young Researchers' Conference Materials Sciences and Engineering, December 5-7, 2018, Belgrade, Serbia, 2018, 66-66 (2018):66/10-2,
https://hdl.handle.net/21.15107/rcub_rimsi_2871 .

TY  - CONF
AU  - Marković, Smilja
AU  - Stojković Simatović, Ivana
AU  - Ahmetović, Sanita
AU  - Veselinović, Ljiljana
AU  - Stojadinović, Stevan
AU  - Rac, Vladislav
AU  - Škapin, Srečo Davor
AU  - Uskoković, Dragan
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2891
AB  - ZnO/CTAB powder was prepared by microwave processing of a precipitate 
with the aid of cetyltrimethylammonium bromide (CTAB). The effects of 
CTAB on the crystal structure, morphology, optical and 
photo(electro)catalytic properties of ZnO particles were studied. The results 
showed that CTAB did not influenced crystal structure or phase purity of 
ZnO. However, even low concentration of CTAB vary particles morphology; 
cone-like particles were prepared by processing without CTAB, while a 
mixture of spheroidal and plate-like ZnO particles were produced when 0.001 
M CTAB was used. It was found that synthesized ZnO powders have 0.10 
eV lower band gap energy then bulk ZnO (3.37 eV). A high photocatalytic 
activity for decolorization of methylene blue water solution was established 
after 2 h of sunlight irradiation; efficiency was 100 and 67% for ZnO/CTAB 
and ZnO, respectively. Electrochemical test showed faster oxygen evolution 
kinetics when ZnO/CTAB was used as anode material. Enhanced 
photo(electro)catalytic activities of ZnO/CTAB particles are attributed to 
better absorption of visible light due to both, larger dimensions and surface 
sensitization by CTAB.
PB  - Society of Physical Chemists of Serbia, Studentski Trg 12-16,  11158, Belgrade, Serbia
C3  - Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade
T1  - Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing
EP  - 240
SP  - 237/C-17-P
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2891
ER  - 

@conference{
author = "Marković, Smilja and Stojković Simatović, Ivana and Ahmetović, Sanita and Veselinović, Ljiljana and Stojadinović, Stevan and Rac, Vladislav and Škapin, Srečo Davor and Uskoković, Dragan",
year = "2018",
abstract = "ZnO/CTAB powder was prepared by microwave processing of a precipitate 
with the aid of cetyltrimethylammonium bromide (CTAB). The effects of 
CTAB on the crystal structure, morphology, optical and 
photo(electro)catalytic properties of ZnO particles were studied. The results 
showed that CTAB did not influenced crystal structure or phase purity of 
ZnO. However, even low concentration of CTAB vary particles morphology; 
cone-like particles were prepared by processing without CTAB, while a 
mixture of spheroidal and plate-like ZnO particles were produced when 0.001 
M CTAB was used. It was found that synthesized ZnO powders have 0.10 
eV lower band gap energy then bulk ZnO (3.37 eV). A high photocatalytic 
activity for decolorization of methylene blue water solution was established 
after 2 h of sunlight irradiation; efficiency was 100 and 67% for ZnO/CTAB 
and ZnO, respectively. Electrochemical test showed faster oxygen evolution 
kinetics when ZnO/CTAB was used as anode material. Enhanced 
photo(electro)catalytic activities of ZnO/CTAB particles are attributed to 
better absorption of visible light due to both, larger dimensions and surface 
sensitization by CTAB.",
publisher = "Society of Physical Chemists of Serbia, Studentski Trg 12-16,  11158, Belgrade, Serbia",
journal = "Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade",
title = "Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing",
pages = "240-237/C-17-P",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2891"
}

Marković, S., Stojković Simatović, I., Ahmetović, S., Veselinović, L., Stojadinović, S., Rac, V., Škapin, S. D.,& Uskoković, D.. (2018). Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing. in Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade
Society of Physical Chemists of Serbia, Studentski Trg 12-16,  11158, Belgrade, Serbia., 237/C-17-P-240.
https://hdl.handle.net/21.15107/rcub_rimsi_2891

Marković S, Stojković Simatović I, Ahmetović S, Veselinović L, Stojadinović S, Rac V, Škapin SD, Uskoković D. Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing. in Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade. 2018;:237/C-17-P-240.
https://hdl.handle.net/21.15107/rcub_rimsi_2891 .

Marković, Smilja, Stojković Simatović, Ivana, Ahmetović, Sanita, Veselinović, Ljiljana, Stojadinović, Stevan, Rac, Vladislav, Škapin, Srečo Davor, Uskoković, Dragan, "Enhanced photo(electro)catalytic properties of ZnO particles synthesized by CTAB-assisted microwave processing" in Physical Chemistry 2018 : proceedings. Vol. 1 / 14th International Conference on Fundamental and Applied Aspects of Physical Chemistry, September 24-28, 2018, Belgrade (2018):237/C-17-P-240,
https://hdl.handle.net/21.15107/rcub_rimsi_2891 .