光电阴极
光催化
锐钛矿
光化学
甲醇
催化作用
化学
光合作用
氧气
有机化学
生物化学
量子力学
物理
电子
作者
Yapeng Dong,Rong Nie,Jixian Wang,Xi Yu,Peng-Cheng Tu,Jiazang Chen,Huanwang Jing
出处
期刊:Chinese Journal of Catalysis
[China Science Publishing & Media Ltd.]
日期:2019-08-01
卷期号:40 (8): 1222-1230
被引量:32
标识
DOI:10.1016/s1872-2067(19)63375-9
摘要
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 µM 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.
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