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Citation: Ningran Wu, Enlin Tian, Chuangyuan Zhao, Yongwen Shen, Xinping Hui, Huanwang Jing. Preparation of Semiconductor Nanocomposites and Reduction of CO₂ by Photoelectrocatalysis[J]. University Chemistry, ;2020, 35(4): 66-71. doi: 10.3866/PKU.DXHX201912003 shu

Preparation of Semiconductor Nanocomposites and Reduction of CO₂ by Photoelectrocatalysis

National Demonstration Center for Experimental Education, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China

Received Date: 2 December 2019

This innovative comprehensive experiment mimics the photosynthesis of natural plants and designs a novel photoelectrocatalytic cell of 3D-ZnO/Ni BiVO₄/FTO, in which, the ZnO-Ni photocathode prepared by electrodeposition and the BiVO₄/FTO electrode were used as photocathode and photoanode, respectively. In 0.1 mol·L^-1 KHCO₃ aqueous solution, the photoelectrcatalytic CO₂ reduction was carried out under -0.6 Volts powered by Si-solar cell in the presence of 1 mmol·L^-1 Eosin Y, generating ethanol, acetate acid, and methanol in a total yield of 22.5 μmol·L^-1·h^-1·cm^-2. This process can store solar energy to chemical energy and lessen CO₂ in the atmosphere. The students might better understand the principle of green chemistry and the Calvin cycle of plant.
- Nanosemiconductor composite,
- Photoelectrocatalysis,
- Zinc oxide,
- Artificial photosynthesis
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Preparation of Semiconductor Nanocomposites and Reduction of CO2 by Photoelectrocatalysis

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通讯作者: 陈斌, bchen63@163.com

Preparation of Semiconductor Nanocomposites and Reduction of CO₂ by Photoelectrocatalysis