期刊
CATALYSIS SCIENCE & TECHNOLOGY
卷 8, 期 20, 页码 -出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cy01326h
关键词
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资金
- National Natural Science Foundation of China [U1610104, 21676046]
- Chinese Ministry of Education via Program for New Century Excellent Talents in Universities [NCET-12-0079]
- Natural Science Foundation of Liaoning Province [2015020200]
This work presents an efficient strategy for visible light-driven imine production through a photocatalytic non-oxygen coupling reaction of diverse amines dramatically boosted by hydrogen evolution over noble metal-free Ni/CdS nanoparticles. Thanks to the integrating effect, close to 100% conversion of benzylamine (75.2 h(-1) turnover frequency), 97% selectivity for imine with 21.4 mmol g(-1) h(-1) hydrogen evolution rate ( > 420 nm) and 11.2% apparent quantum yield (450 nm, 10 mg catalyst) have been achieved at room temperature and ambient pressure. In comparison with the use of common sacrificial agents like TEOA or Na2S/Na2SO3, by the coupling of amines to imines, the H-2 evolution rate increases by two orders of magnitude. The aforementioned integrating strategy has been extended to diverse amines, and an outstanding photocatalytic performance for H-2 and imine production was obtained. Besides, the catalyst can be recycled several times without evident activity loss, suggesting a bright prospect for sustainable chemistry and solar utilization. This new discovery may open a new horizon for efficiently boosting solar hydrogen evolution and simultaneously clean producing diverse high value-added fine chemicals under mild conditions.
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