期刊
NANO RESEARCH
卷 15, 期 12, 页码 10171-10184出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-022-4704-9
关键词
photocatalytic; water splitting; homojunction; charge separation
类别
资金
- National Key Research and Development Program of China [2018YFB1502003]
- National Natural Science Foundation of China [51906197, 51961165103, 21875183]
- National Program for Support of Top-notch Young Professionals
- Natural Science Basic Research Program of Shaanxi Province [2019JCW-10]
- Natural Science Foundation of Jiangsu Province [BK20190220]
- China Postdoctoral Science Foundation [2020M673386, 2020T130503]
- Fundamental Research Funds for the Central Universities
- Youth Innovation Team of Shaanxi Universities
Charge-carrier separation is a critical issue in photocatalytic water splitting and can be accelerated by constructing microscopic junctions in photocatalysts. Homojunction photocatalysts, composed of different forms of semiconductor with identical compositions, can inherit the advantages of heterojunction-based photocatalysts in charge separation while avoiding potential drawbacks. Recently, homojunction-based photocatalysts have gained significant attention in water splitting.
Charge-carrier separation is regarded as one of the critical issues of photocatalytic water splitting and could be accelerated by constructing microscopic junctions in photocatalysts. Homojunction photocatalysts consisting of different forms of semiconductor with identical compositions could inherit the advantages of heterojunction-based photocatalysts in charge separation due to the built-in electric field, while omitting the potential drawbacks of interfacial lattice distortion by providing continuous band bonding. Therefore, homojunction-based photocatalysts have recently drawn growing attention in water splitting. In this review, the synthetic approaches to preparing photocatalysts with various homojunction structures including p-n junction, phase junction, and facet junction were introduced, together with a comprehensive analysis and discussion on the latest progress in the application of photocatalytic water splitting. This review work is expected to inspire more related work with promoted research on designing efficient homojunction-based photocatalytic systems for water splitting.
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