化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (9) : 205-208.

科学研究

SnS₂/BiOBr复合光催化剂的制备及其光催化性能研究

作者信息 +

Preparation and property of SnS₂/BiOBr composite photocatalyst

Ding Shihuan¹, Xu Congcong², Lu Yuanzheng²

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文章历史 +

Received
2018-05-31
Issue Date	Revised Date
2018-11-05	2018-05-31

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摘要

结合水热法和沉淀法成功制备了核壳结构的SnS₂/BiOBr复合光催化剂。通过X射线衍射仪、红外光谱仪、扫描电镜、能谱和荧光光谱等手段对样品的物相组成、形貌和光吸收性质等进行表征,并在可见光下催化降解甲基橙作为探针来评价所合成样品的光催化活性。结果表明:SnS₂能有效提高BiOBr光催化性能,SnS₂/BiOBr在可见光下光照100min降解率达到77%,活性优于BiOBr或SnS₂。此外,SnS₂/BiOBr复合光催化剂稳定性高,重复使用性能良好。

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.

关键词

SnS₂/BiOBr复合光催化剂 / 可见光 / p-n异质结 / 甲基橙

Key words

SnS₂/BiOBr composite photocatalyst / visible light / p-n heterojunction / methyl orange

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SnS₂/BiOBr复合光催化剂的制备及其光催化性能研究[J]. 化工新型材料, 2018, 46(9): 205-208 DOI:

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