Decomposition mechanism and kinetics of zinc–isophthalate complex with 2,2’-dipyridylamine as a precursor for obtaining nanosized zinc oxide
Аутори
Zdravkovic, JelenaRadovanovic, Lidija
Simović, Bojana
Poleti, Dejan
Rogan, Jelena
zekovic, ivana
Dramicanin, Miroslav
Mihajlovski, Katarina
Radovanovic, Zeljko
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Studies related to the synthesis of nanosized ZnO as the antibacterial agent have become an
interdisciplinary area gathering chemists, physicists, biologists, and medics. The broad scope
of materials based on ZnO resulted in the development of various techniques for its
preparation. Considering the dependence of particle shape and size onto physical and
chemical properties of ZnO, the synthesis procedure is of major importance.
In this work, an unconventional methodology of synthesis is proposed for obtaining
nanosized ZnO. Polymeric zinc complex containing 2,2’-dipyridylamine (dipya) and dianion
of 1,3-benzenedicarboxylic acid (ipht), [Zn(dipya)(ipht)]n, was used as precursor. Besides
the crystal structure of [Zn(dipya)(ipht)]n which was already published [1], the luminescent
properties are presented in this work. Also, the amazing antibacterial activity of this
precursor prompted us to investigate the relationship between the crystal structure and
thermal properties, espec...ially if we bear in mind the lack of similar studies in the literature.
Therefore, the mechanism and kinetics of its degradation was investigated under non isothermal conditions in nitrogen and air atmospheres.
Degradation enthalpies, thermodynamic activation parameters, pre-exponential factor, A,
and the apparent activation energy, Ea, were determined for each step using Kissinger’s and
Ozawa’s equations. The complexity of degradation steps has been analyzed using
isoconversional methods. TG/DCS data were collected at four different heating rates: 10, 15,
20 and 25 ºC min
–1
, while the formation of nanosized ZnO was confirmed using XRPD and
FESEM techniques. The influence of precursor on the crystallite size and morphology of the
resulting ZnO along with its antibacterial activity was examined. The obtained results will be
discussed and compared.
[1] L. Radovanović, J. Rogan, D. Poleti, M. Milutinović, M.V. Rodić, Polyhedron 112
(2016) 18.
Кључне речи:
Zinc–isophthalate complex with 2,2’-dipyridylamine / Thermal decomposition / Nanosized ZnO / Antibacterial activity / Luminescent propertiesИзвор:
Fifteenth Young Researchers Conference - Materials Science and Engineering, Belgrade, Serbia, book of abstracts, 2016, 47-Издавач:
- Institute of Technical Sciences of SASA, Belgrade, Serbia
Финансирање / пројекти:
- 0-3D наноструктуре за примену у електроници и обновљивим изворима енергије: синтеза, карактеризација и процесирање (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Zdravkovic, Jelena AU - Radovanovic, Lidija AU - Simović, Bojana AU - Poleti, Dejan AU - Rogan, Jelena AU - zekovic, ivana AU - Dramicanin, Miroslav AU - Mihajlovski, Katarina AU - Radovanovic, Zeljko PY - 2016 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/3109 AB - Studies related to the synthesis of nanosized ZnO as the antibacterial agent have become an interdisciplinary area gathering chemists, physicists, biologists, and medics. The broad scope of materials based on ZnO resulted in the development of various techniques for its preparation. Considering the dependence of particle shape and size onto physical and chemical properties of ZnO, the synthesis procedure is of major importance. In this work, an unconventional methodology of synthesis is proposed for obtaining nanosized ZnO. Polymeric zinc complex containing 2,2’-dipyridylamine (dipya) and dianion of 1,3-benzenedicarboxylic acid (ipht), [Zn(dipya)(ipht)]n, was used as precursor. Besides the crystal structure of [Zn(dipya)(ipht)]n which was already published [1], the luminescent properties are presented in this work. Also, the amazing antibacterial activity of this precursor prompted us to investigate the relationship between the crystal structure and thermal properties, especially if we bear in mind the lack of similar studies in the literature. Therefore, the mechanism and kinetics of its degradation was investigated under non isothermal conditions in nitrogen and air atmospheres. Degradation enthalpies, thermodynamic activation parameters, pre-exponential factor, A, and the apparent activation energy, Ea, were determined for each step using Kissinger’s and Ozawa’s equations. The complexity of degradation steps has been analyzed using isoconversional methods. TG/DCS data were collected at four different heating rates: 10, 15, 20 and 25 ºC min –1 , while the formation of nanosized ZnO was confirmed using XRPD and FESEM techniques. The influence of precursor on the crystallite size and morphology of the resulting ZnO along with its antibacterial activity was examined. The obtained results will be discussed and compared. [1] L. Radovanović, J. Rogan, D. Poleti, M. Milutinović, M.V. Rodić, Polyhedron 112 (2016) 18. PB - Institute of Technical Sciences of SASA, Belgrade, Serbia C3 - Fifteenth Young Researchers Conference - Materials Science and Engineering, Belgrade, Serbia, book of abstracts T1 - Decomposition mechanism and kinetics of zinc–isophthalate complex with 2,2’-dipyridylamine as a precursor for obtaining nanosized zinc oxide SP - 47 UR - https://hdl.handle.net/21.15107/rcub_rimsi_3109 ER -
@conference{ author = "Zdravkovic, Jelena and Radovanovic, Lidija and Simović, Bojana and Poleti, Dejan and Rogan, Jelena and zekovic, ivana and Dramicanin, Miroslav and Mihajlovski, Katarina and Radovanovic, Zeljko", year = "2016", abstract = "Studies related to the synthesis of nanosized ZnO as the antibacterial agent have become an interdisciplinary area gathering chemists, physicists, biologists, and medics. The broad scope of materials based on ZnO resulted in the development of various techniques for its preparation. Considering the dependence of particle shape and size onto physical and chemical properties of ZnO, the synthesis procedure is of major importance. In this work, an unconventional methodology of synthesis is proposed for obtaining nanosized ZnO. Polymeric zinc complex containing 2,2’-dipyridylamine (dipya) and dianion of 1,3-benzenedicarboxylic acid (ipht), [Zn(dipya)(ipht)]n, was used as precursor. Besides the crystal structure of [Zn(dipya)(ipht)]n which was already published [1], the luminescent properties are presented in this work. Also, the amazing antibacterial activity of this precursor prompted us to investigate the relationship between the crystal structure and thermal properties, especially if we bear in mind the lack of similar studies in the literature. Therefore, the mechanism and kinetics of its degradation was investigated under non isothermal conditions in nitrogen and air atmospheres. Degradation enthalpies, thermodynamic activation parameters, pre-exponential factor, A, and the apparent activation energy, Ea, were determined for each step using Kissinger’s and Ozawa’s equations. The complexity of degradation steps has been analyzed using isoconversional methods. TG/DCS data were collected at four different heating rates: 10, 15, 20 and 25 ºC min –1 , while the formation of nanosized ZnO was confirmed using XRPD and FESEM techniques. The influence of precursor on the crystallite size and morphology of the resulting ZnO along with its antibacterial activity was examined. The obtained results will be discussed and compared. [1] L. Radovanović, J. Rogan, D. Poleti, M. Milutinović, M.V. Rodić, Polyhedron 112 (2016) 18.", publisher = "Institute of Technical Sciences of SASA, Belgrade, Serbia", journal = "Fifteenth Young Researchers Conference - Materials Science and Engineering, Belgrade, Serbia, book of abstracts", title = "Decomposition mechanism and kinetics of zinc–isophthalate complex with 2,2’-dipyridylamine as a precursor for obtaining nanosized zinc oxide", pages = "47", url = "https://hdl.handle.net/21.15107/rcub_rimsi_3109" }
Zdravkovic, J., Radovanovic, L., Simović, B., Poleti, D., Rogan, J., zekovic, i., Dramicanin, M., Mihajlovski, K.,& Radovanovic, Z.. (2016). Decomposition mechanism and kinetics of zinc–isophthalate complex with 2,2’-dipyridylamine as a precursor for obtaining nanosized zinc oxide. in Fifteenth Young Researchers Conference - Materials Science and Engineering, Belgrade, Serbia, book of abstracts Institute of Technical Sciences of SASA, Belgrade, Serbia., 47. https://hdl.handle.net/21.15107/rcub_rimsi_3109
Zdravkovic J, Radovanovic L, Simović B, Poleti D, Rogan J, zekovic I, Dramicanin M, Mihajlovski K, Radovanovic Z. Decomposition mechanism and kinetics of zinc–isophthalate complex with 2,2’-dipyridylamine as a precursor for obtaining nanosized zinc oxide. in Fifteenth Young Researchers Conference - Materials Science and Engineering, Belgrade, Serbia, book of abstracts. 2016;:47. https://hdl.handle.net/21.15107/rcub_rimsi_3109 .
Zdravkovic, Jelena, Radovanovic, Lidija, Simović, Bojana, Poleti, Dejan, Rogan, Jelena, zekovic, ivana, Dramicanin, Miroslav, Mihajlovski, Katarina, Radovanovic, Zeljko, "Decomposition mechanism and kinetics of zinc–isophthalate complex with 2,2’-dipyridylamine as a precursor for obtaining nanosized zinc oxide" in Fifteenth Young Researchers Conference - Materials Science and Engineering, Belgrade, Serbia, book of abstracts (2016):47, https://hdl.handle.net/21.15107/rcub_rimsi_3109 .