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Preparation and visible-light photocatalytic activity of Ag3VO4 powders

文献类型:期刊论文

作者Hu, Xuexiang ; Hu, Chun
刊名JOURNAL OF SOLID STATE CHEMISTRY
出版日期2007-02
卷号180期号:2页码:725-732
关键词Ag3VO4 precipitation method visible-light-driven photocatalyst azodye
英文摘要Monoclinic structure Ag3VO4 was prepared by precipitation method and evaluated for the decolorization of azodye acid red B (ARB) under visible light irradiation (lambda > 420 nm). The Ag3VO4 prepared in the excess vanadium or silver exhibited higher visible-light-driven activity than the sample prepared in a stoichiometric ratio. X-ray diffraction and UV-vis diffuse reflectance measurements indicated that the excess vanadium or silver in the preparation increased the crystallinity and absorbance in visible light region, resulting in an increase in the photocatalytic efficiency. Furthermore, the activity of the Ag3VO4 was increased by 3.8 times when a NiO was loaded. It was due to the formation of a short-circuited micro photoelectrochernical cell on the surface of NiO/Ag3VO4, enhancing the separation of photogenerated electron-hole pairs, which was proved by ESR studies. (c) 2006 Elsevier Inc. All rights reserved.
WOS记录号WOS:000244280700040
源URL[http://ir.rcees.ac.cn/handle/311016/22583]  
专题生态环境研究中心_环境水质学国家重点实验室
推荐引用方式
GB/T 7714
Hu, Xuexiang,Hu, Chun. Preparation and visible-light photocatalytic activity of Ag3VO4 powders[J]. JOURNAL OF SOLID STATE CHEMISTRY,2007,180(2):725-732.
APA Hu, Xuexiang,&Hu, Chun.(2007).Preparation and visible-light photocatalytic activity of Ag3VO4 powders.JOURNAL OF SOLID STATE CHEMISTRY,180(2),725-732.
MLA Hu, Xuexiang,et al."Preparation and visible-light photocatalytic activity of Ag3VO4 powders".JOURNAL OF SOLID STATE CHEMISTRY 180.2(2007):725-732.

入库方式: OAI收割

来源:生态环境研究中心

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