摘要
能源和环境作为当今世界两大热点问题,备受人们的关注。针对这两大问题的解决,光催化技术深受研究人员的青睐。其中,卤氧化铋(BiOX,X=Cl、Br、I)因其特殊的层状结构、适宜的带隙宽度、优异的光电性能,在光催化领域脱颖而出。本文围绕卤氧化铋的结构及性能,介绍了对其改性的研究,通过形貌调控、半导体复合、离子掺杂、表面改性等方法,以提高卤氧化铋及其复合物的活性位点暴露量、光生载流子的传输与分离效率及光吸收性能。同时列举了改性后的卤氧化铋在能源与环境领域的应用,并对不同改性手段的局限性进行了探讨,以期为卤氧化铋的应用提供参考。
Energy and environment,as two hot issues in the world today,have attracted people’s attention.To solve these two problems,photocatalytic technology has been favored by researchers.Among them,bismuth oxyhalide(BiOX,X=Cl,Br,I)stands out in the field of photocatalysis because of its special layered structure,suitable band gap width,and excellent photoelectric properties.Based on the structure and properties of bismuth oxyhalide,research on its modification is introduced.By means of morphology control,semiconductor compounding,ion doping and surface modification,the active site exposure,transmission and separation efficiency of photo-generated carriers and light absorption performance of bismuth oxyhalide and its composites are improved.At the same time,the applications of modified bismuth oxyhalide in the fields of energy and environment are listed,and the limitations of different modification methods are discussed,in order to provide a reference for the application of bismuth oxyhalide.
作者
张静雯
李英华
ZHANG Jingwen;LI Yinghua(School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《硅酸盐通报》
CAS
北大核心
2021年第7期2374-2379,共6页
Bulletin of the Chinese Ceramic Society
基金
中央高校基本科研业务费项目(N2001016)
国家重点研发计划(2019YFC1803802)。
关键词
卤氧化铋
光催化
改性
应用
光生载流子
bismuth oxyhalide
photocatalysis
modification
application
photo-induced carrier
