Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites
2019
Preuzimanje 🢃
Autori
Vasiljević, Zorka Ž.Dojčinović, Milena
Pavlović, Vera P.
Vujančević, Jelena
Marković, Smilja
Tadić, Nenad
Nikolić, Maria Vesna
Konferencijski prilog (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this work, spinel magnesium cobalt ferrites (CoxMg1-xFe2O4, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9) were synthesized by a sol-gel combustion method. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. The effects of cobalt ions on structural and morphological properties were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. A cubic spinel structure formed with a varied distribution of cobalt and magnesium ions on tetrahedral and octahedral sites that depended on their content. All ferrite powders consisted of multigrain agglomerates. Optical properties were investigated by UV- vis spectrophotometry. The photocatalytic activity of as prepared samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB) under visible light irradiation. After 240 min, compare...d to other samples, the sample labeled as Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in reduction of 90% of its initial concentration.
Izvor:
5th Conference of The Serbian Society for Ceramic Materials - 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia, Programme and the Book of Abstracts, 2019, 73-73Izdavač:
- Institute for Multidisciplinary Research, University of Belgrade
Finansiranje / projekti:
- 0-3D nanostrukture za primenu u elektronici i obnovljivim izvorima energije: sinteza, karakterizacija i procesiranje (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
- Usmerena sinteza, struktura i svojstva multifunkcionalnih materijala (RS-MESTD-Basic Research (BR or ON)-172057)
Kolekcije
Institucija/grupa
Mašinski fakultetTY - CONF AU - Vasiljević, Zorka Ž. AU - Dojčinović, Milena AU - Pavlović, Vera P. AU - Vujančević, Jelena AU - Marković, Smilja AU - Tadić, Nenad AU - Nikolić, Maria Vesna PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/6797 AB - In this work, spinel magnesium cobalt ferrites (CoxMg1-xFe2O4, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9) were synthesized by a sol-gel combustion method. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. The effects of cobalt ions on structural and morphological properties were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. A cubic spinel structure formed with a varied distribution of cobalt and magnesium ions on tetrahedral and octahedral sites that depended on their content. All ferrite powders consisted of multigrain agglomerates. Optical properties were investigated by UV- vis spectrophotometry. The photocatalytic activity of as prepared samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB) under visible light irradiation. After 240 min, compared to other samples, the sample labeled as Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in reduction of 90% of its initial concentration. PB - Institute for Multidisciplinary Research, University of Belgrade C3 - 5th Conference of The Serbian Society for Ceramic Materials - 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia, Programme and the Book of Abstracts T1 - Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites EP - 73 SP - 73 UR - https://hdl.handle.net/21.15107/rcub_machinery_6797 ER -
@conference{ author = "Vasiljević, Zorka Ž. and Dojčinović, Milena and Pavlović, Vera P. and Vujančević, Jelena and Marković, Smilja and Tadić, Nenad and Nikolić, Maria Vesna", year = "2019", abstract = "In this work, spinel magnesium cobalt ferrites (CoxMg1-xFe2O4, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9) were synthesized by a sol-gel combustion method. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. The effects of cobalt ions on structural and morphological properties were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. A cubic spinel structure formed with a varied distribution of cobalt and magnesium ions on tetrahedral and octahedral sites that depended on their content. All ferrite powders consisted of multigrain agglomerates. Optical properties were investigated by UV- vis spectrophotometry. The photocatalytic activity of as prepared samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB) under visible light irradiation. After 240 min, compared to other samples, the sample labeled as Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in reduction of 90% of its initial concentration.", publisher = "Institute for Multidisciplinary Research, University of Belgrade", journal = "5th Conference of The Serbian Society for Ceramic Materials - 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia, Programme and the Book of Abstracts", title = "Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites", pages = "73-73", url = "https://hdl.handle.net/21.15107/rcub_machinery_6797" }
Vasiljević, Z. Ž., Dojčinović, M., Pavlović, V. P., Vujančević, J., Marković, S., Tadić, N.,& Nikolić, M. V.. (2019). Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites. in 5th Conference of The Serbian Society for Ceramic Materials - 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia, Programme and the Book of Abstracts Institute for Multidisciplinary Research, University of Belgrade., 73-73. https://hdl.handle.net/21.15107/rcub_machinery_6797
Vasiljević ZŽ, Dojčinović M, Pavlović VP, Vujančević J, Marković S, Tadić N, Nikolić MV. Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites. in 5th Conference of The Serbian Society for Ceramic Materials - 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia, Programme and the Book of Abstracts. 2019;:73-73. https://hdl.handle.net/21.15107/rcub_machinery_6797 .
Vasiljević, Zorka Ž., Dojčinović, Milena, Pavlović, Vera P., Vujančević, Jelena, Marković, Smilja, Tadić, Nenad, Nikolić, Maria Vesna, "Influence of Co2+ ions on photocatalytic properties of MgFe2O4 ferrites" in 5th Conference of The Serbian Society for Ceramic Materials - 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia, Programme and the Book of Abstracts (2019):73-73, https://hdl.handle.net/21.15107/rcub_machinery_6797 .