摘要
Bi OI以其特殊的层状结构和较窄的禁带宽度显示出优异的光催化性能,它可以直接作为可见光光催化剂因而引起了人们的广泛关注。纯的Bi OI由于光生电子与空穴对的复合率较高,其光催化性能不理想,通过与石墨烯、碳纳米管等复合改性来提高Bi OI的光催化活性及通过Bi OI与其他光响应范围较小、催化性能较差的半导体光催化剂复合来提高催化性能不佳的光催化活性是当前研究的主流。本文主要综述了国内外近几年关于Bi OI与BiVO_4、TiO_2、石墨烯复合改性的方法、结构、形貌以及光催化活性和机理的最新研究进展,并展望了Bi OI复合光催化剂的发展趋势。
Bi OI has excellent photocatalytic properties because of its special layered structure and narrow band gap. It can be directly used as visible light photocatalyst and has attracted extensive attention. Pure Bi OI exhibits lower photocatalytic performance due to photogenerated electrons and holes on the high recombination rate, and graphene and carbon nanotubes combined with Bi OI to improve the photocatalytic activity of composite catalyst and the Bi OI with other semiconductor photocatalysis that has wide light response range, poor catalytic performance to improve the photocatalytic activity of composite catalyst become the mainstream of current research. This paper reviews the progress in recent years at home and abroad about Bi OI and Bi VO_4, Ti O_2 and graphene composite modified method, structure, morphology and photocatalytic activity and mechanism of the latest research, and prospected the development trend of Bi OI composite photocatalyst.
出处
《山西大同大学学报（自然科学版）》
2018年第1期8-12,共5页
Journal of Shanxi Datong University(Natural Science Edition)
关键词
碘氧化铋
可见光
复合材料
光催化性能
bismuth oxide iodide
visible light
composite material
photocatalytic activity
