Research Progress of Tungsten Oxide-Based Catalysts in Photocatalytic Reactions
Photocatalysis technology is a potential solution to solve the problem of environmental pollution and energy shortage, but its wide application is limited by the low efficiency of solar energy conversion. As a non-toxic and inexpensive n-type semiconductor, WO<sub>3</sub> can absorb appr...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/13/3/579 |
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| author | Zenan Ni Qiuwen Wang Yuxin Guo Huimin Liu Qijian Zhang |
| author_facet | Zenan Ni Qiuwen Wang Yuxin Guo Huimin Liu Qijian Zhang |
| author_sort | Zenan Ni |
| collection | DOAJ |
| description | Photocatalysis technology is a potential solution to solve the problem of environmental pollution and energy shortage, but its wide application is limited by the low efficiency of solar energy conversion. As a non-toxic and inexpensive n-type semiconductor, WO<sub>3</sub> can absorb approximately 12% of sunlight which is considered one of the most attractive photocatalytic candidates. However, the narrow light absorption range and the high recombination rate of photogenerated electrons and holes restrict the further development of WO<sub>3</sub>-based catalysts. Herein, the studies on preparation and modification methods such as doping element, regulating defects and constructing heterojunctions to enlarge the range of excitation light to the visible region and slow down the recombination of carriers on WO<sub>3</sub>-based catalysts so as to improve their photocatalytic performance are reviewed. The mechanism and application of WO<sub>3</sub>-based catalysts in the dissociation of water, the degradation of organic pollutants, as well as the hydrogen reduction of N<sub>2</sub> and CO<sub>2</sub> are emphatically investigated and discussed. It is clear that WO<sub>3</sub>-based catalysts will play a positive role in the field of future photocatalysis. This paper could also provide guidance for the rational design of other metallic oxide (MO<sub>x</sub>) catalysts for the increasing conversion efficiency of solar energy. |
| first_indexed | 2024-03-11T06:47:45Z |
| format | Article |
| id | doaj.art-875c8dffafce46eba4685fdbe8f5c119 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-11T06:47:45Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-875c8dffafce46eba4685fdbe8f5c1192023-11-17T10:11:26ZengMDPI AGCatalysts2073-43442023-03-0113357910.3390/catal13030579Research Progress of Tungsten Oxide-Based Catalysts in Photocatalytic ReactionsZenan Ni0Qiuwen Wang1Yuxin Guo2Huimin Liu3Qijian Zhang4School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaSchool of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaSchool of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaSchool of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaSchool of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaPhotocatalysis technology is a potential solution to solve the problem of environmental pollution and energy shortage, but its wide application is limited by the low efficiency of solar energy conversion. As a non-toxic and inexpensive n-type semiconductor, WO<sub>3</sub> can absorb approximately 12% of sunlight which is considered one of the most attractive photocatalytic candidates. However, the narrow light absorption range and the high recombination rate of photogenerated electrons and holes restrict the further development of WO<sub>3</sub>-based catalysts. Herein, the studies on preparation and modification methods such as doping element, regulating defects and constructing heterojunctions to enlarge the range of excitation light to the visible region and slow down the recombination of carriers on WO<sub>3</sub>-based catalysts so as to improve their photocatalytic performance are reviewed. The mechanism and application of WO<sub>3</sub>-based catalysts in the dissociation of water, the degradation of organic pollutants, as well as the hydrogen reduction of N<sub>2</sub> and CO<sub>2</sub> are emphatically investigated and discussed. It is clear that WO<sub>3</sub>-based catalysts will play a positive role in the field of future photocatalysis. This paper could also provide guidance for the rational design of other metallic oxide (MO<sub>x</sub>) catalysts for the increasing conversion efficiency of solar energy.https://www.mdpi.com/2073-4344/13/3/579WO<sub>3</sub>photocatalysisenvironmentenergy |
| spellingShingle | Zenan Ni Qiuwen Wang Yuxin Guo Huimin Liu Qijian Zhang Research Progress of Tungsten Oxide-Based Catalysts in Photocatalytic Reactions Catalysts WO<sub>3</sub> photocatalysis environment energy |
| title | Research Progress of Tungsten Oxide-Based Catalysts in Photocatalytic Reactions |
| title_full | Research Progress of Tungsten Oxide-Based Catalysts in Photocatalytic Reactions |
| title_fullStr | Research Progress of Tungsten Oxide-Based Catalysts in Photocatalytic Reactions |
| title_full_unstemmed | Research Progress of Tungsten Oxide-Based Catalysts in Photocatalytic Reactions |
| title_short | Research Progress of Tungsten Oxide-Based Catalysts in Photocatalytic Reactions |
| title_sort | research progress of tungsten oxide based catalysts in photocatalytic reactions |
| topic | WO<sub>3</sub> photocatalysis environment energy |
| url | https://www.mdpi.com/2073-4344/13/3/579 |
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