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| Research Progress and Application on Bismuth Oxyhalide Photocatalyst Modification |
| Received:February 26, 2020 Revised:April 15, 2020 |
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| DOI：10.7643/issn.1672-9242.2020.08.013 |
| KeyWord:bismuth oxyhalide photocatalysis modification applications synthesis photo-generated carriers |
| Author | Institution |
| LI Xiao-hui |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| PENG Dong |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| YUAN Xiao-ya |
Chongqing Jiaotong University, Chongqing , China |
| ZHANG Min |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| CONG Da-long |
Southwest Technology and Engineering Research Institute, Chongqing , China |
| HE Qing-bing |
Southwest Technology and Engineering Research Institute, Chongqing , China |
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| Abstract: |
| With the aggravation of the global environment and energy problems, people urgently need to develop some efficient, environmentally friendly and stable photocatalysts. Bismuth oxyhalide (BiOX, X=Cl, Br, I) has attracted more and more attention in the field of photocatalysis because of its unique layered structure and excellent optical and electrical properties. Although BiOX photocatalyst exhibits excellent performance in photocatalytic reaction, its photocatalytic efficiency still needs to be improved. The structure and properties of BiOX and the current mainstream methods for preparing BiOX were briefly described. The research progress in the modification of bismuth oxyhalide photocatalyst in recent years was summarized. The main modification methods included microstructure control, crystal plane and defect control, doping, structure heterojunction, etc. These methods could achieve modification by improving the light absorption capacity, the separation and transport efficiency of photogenerated carriers and the exposure of active sites of bismuth oxyhalide or bismuth oxyhalide compounds. The application in the fields of environment, energy and biology was introduced. At the same time, the problems and prospects for the development of BiOX were put forward. |
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