Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 597, Issue -, Pages 129-135Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.01.130
Keywords
Fe-loaded BiVO4; Hydrothermal method; Methylene blue; Photocatalytic activity; Visible light
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Funding
- National Nanotechnology Center (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Ministry of Science and Technology through its program of Center of Excellence Network
- Chiang Mai University
- National Research University Project under Thailand's Office of the Higher Education Commission, Materials Science Research Center
- Thailand Research Fund (TRF)
- Commission on Higher Education (CHE)
- National Institute of Metrology (Thailand) for UV-vis DRS measurement
- Graduate School Chiang Mai University
- Department of Chemistry and Department of Physics and Materials Science, Faculty of Science, Chiang Mai University
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Pure BiVO4 and nominal 0.5-5.0 mol% Fe-loaded BiVO4 samples were synthesized by hydrothermal method. All samples were characterized in order to obtain the correlation between structure and photocatalytic properties by X-ray diffraction, Brunauer, Emmett and Teller, UV-vis diffuse reflectance spectrophotometry, photoluminescence spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and inductively coupled plasma-optical emission spectroscopy. The structure of all samples was single-phase monoclinic scheelite. The absorption spectrum of 5.0 mol% Fe-loaded BiVO4 shifted to the visible region, suggesting the potential application of this material as a superior visible-light driven photocatalyst in comparison with pure BiVO4. Photocatalytic activities of all photocatalyst samples were examined by studying the degradation of methylene blue under visible light irradiation. The results clearly showed that Fe-loaded BiVO4 sample exhibited remarkably higher activity than pure BiVO4. (C) 2014 Elsevier B.V. All rights reserved.
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