Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1)
Authors
Dojčinović, Milena
Vasiljević, Zorka Z

Vujančević, Jelena

Pavlović, Vera P.

Marković, Smilja

Tadić, Nenad B.

Nikolić, Maria Vesna

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The sol-gel combustion method was applied for synthesis of spinel magnesium cobalt ferrites CoxMg1-xFe2O4, with varying cobalt and magnesium content, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. Structural and morphological properties of the obtained ferrite powders were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. Optical properties were investigated by UV-VIS spectrophotometry. A cubic spinel structure with multigrain agglomerates formed. Visible light photocatalytic activity of the spinel ferrite powder samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB). After 240 min Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in 90% of its initial concentration in an alkaline env...ironment.
Keywords:
sol-gel combustion / photocatalysis / spinel magnesium cobalt ferrites / nanocrystalline materialsSource:
Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad, 2019, 136-136Publisher:
- Novi Sad : Faculty of Technology
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Institut za multidisciplinarna istraživanjaTY - CONF AU - Dojčinović, Milena AU - Vasiljević, Zorka Z AU - Vujančević, Jelena AU - Pavlović, Vera P. AU - Marković, Smilja AU - Tadić, Nenad B. AU - Nikolić, Maria Vesna PY - 2019 UR - https://dais.sanu.ac.rs/123456789/6986 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1631 AB - The sol-gel combustion method was applied for synthesis of spinel magnesium cobalt ferrites CoxMg1-xFe2O4, with varying cobalt and magnesium content, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. Structural and morphological properties of the obtained ferrite powders were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. Optical properties were investigated by UV-VIS spectrophotometry. A cubic spinel structure with multigrain agglomerates formed. Visible light photocatalytic activity of the spinel ferrite powder samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB). After 240 min Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in 90% of its initial concentration in an alkaline environment. PB - Novi Sad : Faculty of Technology C3 - Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad T1 - Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1) EP - 136 SP - 136 UR - https://hdl.handle.net/21.15107/rcub_dais_6986 ER -
@conference{ author = "Dojčinović, Milena and Vasiljević, Zorka Z and Vujančević, Jelena and Pavlović, Vera P. and Marković, Smilja and Tadić, Nenad B. and Nikolić, Maria Vesna", year = "2019", abstract = "The sol-gel combustion method was applied for synthesis of spinel magnesium cobalt ferrites CoxMg1-xFe2O4, with varying cobalt and magnesium content, x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9. Magnesium nitrate, cobalt nitrate and iron nitrate were used as oxidizers and citric acid was used as a reducing agent. Structural and morphological properties of the obtained ferrite powders were investigated and characterized by X-ray diffraction (XRD), Raman spectroscopy, Field emission scanning electron microscope (FESEM) and Fourier transform infrared (FT-IR) spectroscopy. Optical properties were investigated by UV-VIS spectrophotometry. A cubic spinel structure with multigrain agglomerates formed. Visible light photocatalytic activity of the spinel ferrite powder samples was evaluated by measuring the rate of photodegradation reaction of methylene blue (MB). After 240 min Co0.1Mg0.9Fe2O4 showed the best rate of photodecomposition of MB resulting in 90% of its initial concentration in an alkaline environment.", publisher = "Novi Sad : Faculty of Technology", journal = "Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad", title = "Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1)", pages = "136-136", url = "https://hdl.handle.net/21.15107/rcub_dais_6986" }
Dojčinović, M., Vasiljević, Z. Z., Vujančević, J., Pavlović, V. P., Marković, S., Tadić, N. B.,& Nikolić, M. V.. (2019). Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1). in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad Novi Sad : Faculty of Technology., 136-136. https://hdl.handle.net/21.15107/rcub_dais_6986
Dojčinović M, Vasiljević ZZ, Vujančević J, Pavlović VP, Marković S, Tadić NB, Nikolić MV. Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1). in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad. 2019;:136-136. https://hdl.handle.net/21.15107/rcub_dais_6986 .
Dojčinović, Milena, Vasiljević, Zorka Z, Vujančević, Jelena, Pavlović, Vera P., Marković, Smilja, Tadić, Nenad B., Nikolić, Maria Vesna, "Visible light photocatalytic activity of nanocrystalline CoxMg1-xFe2O4 (x = 0-1)" in Programme and book of abstracts / 13th Conference for Young Scientists in Ceramics (CYSC-2017), October 16-19, 2019, Novi Sad (2019):136-136, https://hdl.handle.net/21.15107/rcub_dais_6986 .