Enhanced visible-light-response photocatalytic degradation of methylene blue on Fe-loaded BiVO4 photocatalyst

[Display omitted] •Fe-loaded BiVO4 particles were prepared by hydrothermal method.•Physicochemical properties played a significant role in photocatalytic process.•All Fe-loaded BiVO4 samples showed higher photocatalytic activity than pure BiVO4.•The Fe3+ ions may improve the separation of photogener...

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Bibliographic Details
Published in:	Journal of alloys and compounds Vol. 597; pp. 129 - 135
Main Authors:	Chala, Sinaporn, Wetchakun, Khatcharin, Phanichphant, Sukon, Inceesungvorn, Burapat, Wetchakun, Natda
Format:	Journal Article
Language:	English
Published:	Kidlington Elsevier B.V 05-06-2014 Elsevier
Subjects:	Catalysis Catalytic reactions Chemistry Exact sciences and technology Fe-loaded BiVO4 General and physical chemistry Hydrothermal method Methylene blue Photocatalytic activity Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry Visible light Fe-loaded BiVO4 Photocatalytic activity Visible light Hydrothermal method Methylene blue Diffuse reflection Photocatalysis Bismuth Vanadates Doping Photoluminescence Fe-loaded BiVO X ray diffraction Absorption spectrum Transmission electron microscopy Hydrothermal synthesis Iron addition Ultraviolet visible spectrum Spectrophotometry
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Summary:	[Display omitted] •Fe-loaded BiVO4 particles were prepared by hydrothermal method.•Physicochemical properties played a significant role in photocatalytic process.•All Fe-loaded BiVO4 samples showed higher photocatalytic activity than pure BiVO4.•The Fe3+ ions may improve the separation of photogenerated electrons and holes. Pure BiVO4 and nominal 0.5–5.0mol% 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 5.0mol% 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.
ISSN:	0925-8388 1873-4669
DOI:	10.1016/j.jallcom.2014.01.130