Journal
ACS CATALYSIS
Volume 9, Issue 5, Pages 4642-4687Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.9b00313
Keywords
photocatalysis; semiconductor; stability; photocorrosion mechanism; anti-photocorrosion
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Funding
- National Natural Science Foundation of China [21872029, U1463204, 21173045]
- Award Program for Minjiang Scholar Professorship
- Natural Science Foundation of Fujian Province [2012J06003]
- Independent Research Project of the State Key Laboratory of Photocatalysis on Energy and Environment [2014A05]
- First Program of Fujian Province for Top Creative Young Talents
- Program for Returned High-Level Overseas Chinese Scholars of Fujian province
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Heterogeneous photocatalysis is a promising strategy for addressing the worldwide environmental pollution and energy shortage issues. However, unlike TiO2 with good photostability, the intrinsic drawback of photoinduced decomposition, i.e., photocorrosion, of semiconductors significantly challenges durable photocatalysis. In this review, the photocorrosion mechanisms of typical semiconductors and different characterization methods proposed for monitoring the photocorrosion process of semiconductor-based composite photocatalysts are elaborated. Dedicated emphasis is put on the strategies for improving the anti-photocorrosion property of semiconductor-based photocatalysts, including modifying the crystal structure or morphology of semiconductors, doping with heteroatoms, hybridizing with various semiconductors and/or cocatalysts, and regulating the photocatalytic reaction conditions. Finally, we cast a personal prospect on the future development of the rational design of corrosion-controlled semiconductor-based photocatalysts toward versatile photoredox applications.
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