Preparation and property of SnS2/BiOBr composite photocatalyst
Ding Shihuan1, Xu Congcong2, Lu Yuanzheng2
1.Department of Petroleum Engineering,Chongqing Energy College,Chongqing 402260; 2.College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 401331
Abstract: SnS2/BiOBr composite photocatalysts were successfully synthesized by coupling hydrothermal method with precipitation method.XRD,FT-IR,SEM,EDS and PL were applied to investigate the structure,morphology and optical absorption properties of samples.The photocatalytic degradation of methyl orange was selected as a probe to evaluate the photocatalytic activity of samples under visible light.The results confirmed that SnS2 improved the photacatalytic performance of BiOBr effectively.The degradation rate of methyl orange was 77% in 100 minutes with SnS2/BiOBr under visible light irradiation,which was better than that with pure BiOBr or SnS2.Furthermore,SnS2/BiOBr exhibited high stability and good repeatability.
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