崔文权.卤氧化铋复合物光催化剂[J].分子催化,2013,(5):483-492 |
卤氧化铋复合物光催化剂 |
Bismuth oxyhalides Compound Photocatalyst |
投稿时间:2013-08-17 修订日期:2013-09-24 |
DOI: |
中文关键词: 卤氧化铋 复合物 异质结 光催化降解 |
英文关键词:Bismuth oxyhalides Compound heterojunction photocatalytic degradation |
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目) |
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中文摘要: |
卤氧化铋BiOX ( X= Cl, Br, I) 作为一种新型光催化剂,其特殊的花状微球形貌,开放式的结构以及间接的跃迁模式,均有利于电子空穴对的有效分离,在可见光催化降解有机污染物上展现出优异的活性。但是,使其具有实际应用价值,还需克服电子与空穴快速复合以及稳定性等问题。借助于半导体复合改性,构建异质结,卤氧化铋的光催化性能可以得到进一步改善和提高。本文主要对国内外卤氧化铋基复合物的研究进展进行总结和分析,并讨论了催化机理,最后对卤氧化铋复合物的发展进行了展望。 |
英文摘要: |
Bismuth oxyhalides BiOX(X= Cl, Br, I), as the new photocatalysts, exhibited high photocatalytic activity for the degradation of organic pollutants under visible light irradiation for the special flower-like microspheres morphology, layer structure and indirect transition mode which contributed to the effective separation of electron-hole. However, we need to overcome the rapid recombination of electron-hole and the stability problems to achieve the practical application. Photocatalytic activities of bismuth oxyhalide compounds can be further improved by coupled semiconductor and build the heterojunction. This paper presents an overview of the development of the Bismuth oxyhalides compound,and discuss the catalytic mechanism, at last, the trend of research is prospected. |
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