Photocatalytic Properties of Silver Oxide Loaded on Bismuth Vanadate

Abstract:

In order to enhance the photocatalytic activity of BiVO₄, the Ag₂O loaded on BiVO₄ is studied. In this study, Ag₂O loaded on BiVO₄ was prepared with Bi(NO₃)₃, NH₄VO₃ and C₆H₈O₇ as raw materials by sol-gel method. Influences of the sintering temperature and sintering time were studied on photocatalytic activity, crystal composition and molecular structure. The molecules of matter were characterized by FTIR. Both the phase transition in the sintering process and the influence of Ag₂O loaded on crystal structure and size of the BiVO₄ powder were studied by XRD. The structure of the obtained samples were studied using transmission electron microscopy. The photocatalytic activity Ag₂O loaded on BiVO₄ in different calcination time and different calcination temperature had been studied through the degradation methyl orange solution. It is found that the BiVO₄ photocatalytic efficiency of methyl orange is about 20% when the samples calcined for 4h and calcined at 500°C, the Ag₂O loaded on BiVO₄ photocatalytic efficiency of methyl orange is doubled.

• Periodical: Applied Mechanics and Materials (Volume 320)
• Pages: 654-660
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.320.654
• Online since: May 2013
• Authors: Lian Wei Shan, Wei Li, Zhong Li, Jin Bo Mi, Da Sun, Ping Li, Li Min Dong
• Keywords: BiVO₄, Photocatalysis, Silver Oxide Loaded, Sol Gel

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