卤氧化铋光催化剂的研究进展.pdf

化工进展
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2014年第33卷第3期
3进展与述评
卤氧化铋光催化剂的研究进展
王燕琴,翟梦,冯红武,程小芳
(江苏科技大学生物与化学工程学院,江苏镇江212003)
摘要:鹵氧化铋BiOX(X=Cl,Br,1)因其独特的层状结构和适合的禁带宽度,在可见光下表现出很好的光催
化活性,成为近年来新型光催化剂的研究热点之一。本文概述了国内外对卤氧化铋光催化剂的研究动态和发展
成果,从结构角度总结了BiOX材料的制备和设计。卤氧化缺材料的结构维度直接关系到它的比表面积、吸光能
力、吸附性能和载流子迁移速率,从而影响其性能和作用。通过掺杂、负载、构建异质结等改性方法,提高了
鹵氧化铋的光催化性能,并简单叙述了卤氧化光催化剂的固定化。最后指出通过制备方法、能带结构及催化
机理的深入研究,实现催化剂制备-结构-性能的可调控化,以拓展其应用领域是卤氧化光催化剂未来的研究
关键词:卤氧化铋;半导体;光催化剂;制备;改性
中图分类号:O643
文献标志码:A文章编号:1000-6613(2014)03-0660-08
DOI:10.3969/5.iss.1000-6613.2014.03.024
Research progress in bismuth oxyhalide compouds photocatalysts
WANG Yangin, QU Meng, FENG Hongwu, CHENG Xiaofang
(School of Biology and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003
Jiangsu, China)
Abstract: BIOX(X=Cl, Br, I ), as a new visible-light-driven photocatalyst due to its unique layered
structure and a suitable band gap, has attracted more and more interest in recent years. In this review
recent developments in the area of BIOX photocatalysis research, in terms of new materials
preparation, have been summarized from a structural perspective. Bismuth oxyhalides structural design
is directly related to its specific surface area, absorption capacity, adsorption and charge carrier
mobility, and thus affects its performance and function. Also, modification methods, such as doping
loading and construct heterojunction, which further improve the photocatalytic properties of bismuth
ox halide, are discussed. The immobilization of BIOX photocatalysts is briefly described. The
development of photocatalysts shall be aimed to achieve the regulation of preparation-structure
properties of the catalyst, through deep studies of preparation methods, band structure and catalytic
mechanism, and then to expand its application fields
Key words: bismuth oxyhalide; semiconductor; photocatalyst; preparation; modification
当今,能源短缺和环境污染已成为国内外首要价格使宜等优点成为研究最多的光催化剂2。然
解决的问题。自1972年日本教授 Fujishima等发
收稿日期:2013-10-11:修改稿日期:2013-1-04。
现TO2在光照下能分解水以来,半导体光催化剂在
基金项目:国家自然科学基金(21177055)、江苏省白然科学基金
太阳能转化及有机污染物光催化降解方面的应用已(BK201273)及江苏省博士后基金(1000c0项口
经成为人们探究的热点。其中,二氧化钛因具有较
第一作者:王燕琴(1989一),女,硕士研究生,研究方向为光催化。
E-mail728wyq@sina.com.cn。联系人:程小芳,讲师,研究方向为光
高的光催化活性、稳定性好、耐化学腐蚀、无毒、
催化、光电化学和环境电化学。E-mailchengxfzju(@gmail.com