Journal
CHEMICAL COMMUNICATIONS
Volume 58, Issue 11, Pages 1796-1799Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc07047a
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Funding
- National Natural Science Foundation of China [51602153]
- Natural Science Foundation of Jiangsu Province [BK20190413, BK20210616]
- National Defense Technology Innovation Special Zone Spark Project [2016300TS00911901]
- China Postdoctoral Science Foundation [2019M661825]
- Jiangsu Key Laboratory of Electrochemical Energy-Storage Technologies [EEST2021-2]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
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In this study, covalent organic frameworks (COFs) were successfully combined with BiVO4 photoanode through a covalent bond for the first time. The heterojunction and covalent connection of COFs and BiVO4 promoted carrier separation and increased carrier concentration of the photoanode. The TpPaC/BiVO4 photoanode showed the best performance, indicating the potential of this covalent hybridization strategy for COF-modified photoanodes.
For the first time, covalent organic frameworks (COF-TpPa and COF-TpPaC) are selected to combine with the BiVO4 photoanode through a covalent bond. The heterojunction and covalent connection of COFs and BiVO4 can promote the separation of carriers, and the -CH3 on the benzene ring in COF-TpPaC as an electron donor group can increase the carrier concentration of the photoanode. As a result, the TpPaC/BiVO4 photoanode shows the best performance. This covalent hybridization strategy opens a new insight into the development of COF-modified photoanodes.
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