Magnetic core–shell CuFe2O4@C3N4 hybrids for visible light photocatalysis of Orange II
Novel CuFe2O4@C3N4 core–shell photocatalysts were fabricated through a self-assembly method and characterized by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy, transmission electron microscopy and Uv–vis diffuse reflection sp...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/47950 |
| _version_ | 1848757975328489472 |
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| author | Yao, Y. Lu, F. Zhu, Y. Wei, F. Liu, X. Lian, C. Wang, Shaobin |
| author_facet | Yao, Y. Lu, F. Zhu, Y. Wei, F. Liu, X. Lian, C. Wang, Shaobin |
| author_sort | Yao, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Novel CuFe2O4@C3N4 core–shell photocatalysts were fabricated through a self-assembly method and characterized by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy, transmission electron microscopy and Uv–vis diffuse reflection spectroscopy. The photocatalytic performances of the CuFe2O4@C3N4 catalysts were evaluated in photo Fenton-like discoloration of Orange II dye using H2O2 as an oxidant under visible-light irradiation (λ > 420 nm). It was found the CuFe2O4@C3N4 hybrid (mass ratio of CuFe2O4/g-C3N4 at 2:1) exhibits a superior activity as compared with single component of CuFe2O4 or g-C3N4 and the mixture of g-C3N4 and CuFe2O4, due to the elevation of the separation efficiency of photoinduced electron–hole pairs, resulted from the heterojunction between the interfaces of g-C3N4 and CuFe2O4. The quenching tests of different scavengers displayed that View the MathML sourceO2•−, radical dotOH and h+ are responsible for the Orange II decolorization. In addition, the effects of initial concentration of the dye contaminant (0.014–0.140 mM), different anions (Cl−, View the MathML sourceSO42−, View the MathML sourceNO3−, CH3COO− and View the MathML sourceHCO3−) and temperature (15–65 °C) in photoreaction were also investigated. The CuFe2O4@C3N4 sample exhibited stable performance without obvious loss of catalytic activity after five successive runs, showing a promising application for the photo-oxidative degradation of environmental contaminants. |
| first_indexed | 2025-11-14T09:36:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-47950 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:36:38Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-479502017-09-13T14:18:22Z Magnetic core–shell CuFe2O4@C3N4 hybrids for visible light photocatalysis of Orange II Yao, Y. Lu, F. Zhu, Y. Wei, F. Liu, X. Lian, C. Wang, Shaobin Novel CuFe2O4@C3N4 core–shell photocatalysts were fabricated through a self-assembly method and characterized by X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy, transmission electron microscopy and Uv–vis diffuse reflection spectroscopy. The photocatalytic performances of the CuFe2O4@C3N4 catalysts were evaluated in photo Fenton-like discoloration of Orange II dye using H2O2 as an oxidant under visible-light irradiation (λ > 420 nm). It was found the CuFe2O4@C3N4 hybrid (mass ratio of CuFe2O4/g-C3N4 at 2:1) exhibits a superior activity as compared with single component of CuFe2O4 or g-C3N4 and the mixture of g-C3N4 and CuFe2O4, due to the elevation of the separation efficiency of photoinduced electron–hole pairs, resulted from the heterojunction between the interfaces of g-C3N4 and CuFe2O4. The quenching tests of different scavengers displayed that View the MathML sourceO2•−, radical dotOH and h+ are responsible for the Orange II decolorization. In addition, the effects of initial concentration of the dye contaminant (0.014–0.140 mM), different anions (Cl−, View the MathML sourceSO42−, View the MathML sourceNO3−, CH3COO− and View the MathML sourceHCO3−) and temperature (15–65 °C) in photoreaction were also investigated. The CuFe2O4@C3N4 sample exhibited stable performance without obvious loss of catalytic activity after five successive runs, showing a promising application for the photo-oxidative degradation of environmental contaminants. 2015 Journal Article http://hdl.handle.net/20.500.11937/47950 10.1016/j.jhazmat.2015.04.046 Elsevier restricted |
| spellingShingle | Yao, Y. Lu, F. Zhu, Y. Wei, F. Liu, X. Lian, C. Wang, Shaobin Magnetic core–shell CuFe2O4@C3N4 hybrids for visible light photocatalysis of Orange II |
| title | Magnetic core–shell CuFe2O4@C3N4 hybrids for visible light photocatalysis of Orange II |
| title_full | Magnetic core–shell CuFe2O4@C3N4 hybrids for visible light photocatalysis of Orange II |
| title_fullStr | Magnetic core–shell CuFe2O4@C3N4 hybrids for visible light photocatalysis of Orange II |
| title_full_unstemmed | Magnetic core–shell CuFe2O4@C3N4 hybrids for visible light photocatalysis of Orange II |
| title_short | Magnetic core–shell CuFe2O4@C3N4 hybrids for visible light photocatalysis of Orange II |
| title_sort | magnetic core–shell cufe2o4@c3n4 hybrids for visible light photocatalysis of orange ii |
| url | http://hdl.handle.net/20.500.11937/47950 |