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Synthesis and Photocatalytic Activity of Ag-Doped BiVO4

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Abstract:

Ag-doped BiVO4 semiconductor photocatalysts were synthesized via the one-step hydrothermal method. The microstructure and morphology of catalysts were characterized by using X-ray diffraction, Scanning electron microscopy, and Energy dispersive X-ray detector (EDS) and photocatalytic activities of BiVO4 catalysts with and without Ag doping were evaluated by degrading methylene blue (MB) under visible-light irradiation. UV-Vis absorption spectra were measured to evaulate the photocatalytic activity of the as-synthesized catalysts. The results suggested that Ag-doped BiVO4 with larger rod-like particle size but better crystallnity has the stronger UV absorption. In comparison with pure BiVO4, degradation rate of MB was increased about 18% in Ag-doped BiVO4 with the Ag+ dopant concentration of 15 mol%.

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Periodical:

Advanced Materials Research (Volumes 734-737)

Pages:

2204-2209

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.734-737.2204

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Online since:

August 2013

Authors:

Wen Zhao, Chao Hao Hu, Ran Chen, Feng Zheng Lv, Yan Zhong, Huai Ying Zhou

Keywords:

Ag Doping, BiVO4, Hydrothermal Method, Photocatalyst

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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