期刊
CHINESE JOURNAL OF CATALYSIS
卷 40, 期 8, 页码 1222-1230出版社
SCIENCE PRESS
DOI: 10.1016/S1872-2067(19)63375-9
关键词
Artificial photosynthesis; Carbon dioxide reduction; Photoelectrocatalysis; Metalloporphyrin; Titanium dioxide
资金
- Natural Science Foundation of Gansu Province [17JR5RA212]
- State Key Laboratory of Coal Conversion [J19-20-913-1]
The conversion of CO2 and water to value-added chemicals under sunlight irradiation, especially by photoelectrocatalytic reduction process, is always a dream for human beings. A new artificial photosynthesis system composed of a metalloporphyrin-functionalized TiO2 photocathode and BiVO4 photoanode can efficiently transform CO2 and water to methanol, which is accompanied by oxygen release. This photoelectrocatalytic system smoothly produces methanol at a rate of 55.5 mu M h(-1) cm(-2), with 0.6 V being the membrane voltage in plants. The production of hydrogen can also be observed when the voltage is more than 0.75 V, due to photocatalysis. Our results evidently indicate that the molecules of metalloporphyrin attached onto the surface of anatase (TiO2) behave as chlorophyll, NADP, and Calvin cycle in plant cells. (C) 2019, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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