Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (12): 1441-1447.DOI: 10.11944/j.issn.1000-0518.2016.12.160088

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Synthesis of Silver Vanadium Tetraoxide/Graphene Oxide Composite and Its Visible-light Photocatalytic Performance

MENG Xianwen,SONG Xiao,LIU Suqin,LIANG Ying()   

  1. School of Chemical Engineering and Food Science,Hubei University of Arts and Science,Xiangyang,Hu'nan 441053,China
  • Received:2016-03-04 Accepted:2016-06-14 Published:2016-12-05 Online:2016-12-05
  • Contact: LIANG Ying
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.51378183), the Young and Middle-aged Elitists' Scientific and Technological Innovation Team Project of Education Department of Hubei Province(No.T201512)

Abstract:

Silver vanadium tetraoxide and graphene oxide(Ag3VO4/GO) composites were prepared by Hummers and liquid phase precipitation methods respectively. The obtained samples were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), and ultraviolet-visible(UV-Vis) diffuse reflectance spectroscopy. The effect of GO content on the photocatalytic activity of Ag3VO4 was evaluated by photocatalytic degradation of methyl orange(MO) under visible light irradiation(λ≥420 nm). The results show that GO dopped Ag3VO4 nanoparticles can improve the degradation efficiency. At the optimal GO content(2% mass fraction), the degradation rate of MO over GO/Ag3VO4 is 89% after 30 min of light irradiation, exhibiting 1.6 times higher activity than that of pure Ag3VO4.

Key words: liquid phase precipitation, Hummers method, silver vanadium tetraoxide and graphene oxide composites, visible light photocatalysis