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Solvent selection and Pt decoration towards enhanced photocatalytic CO2 reduction over CsPbBr3 perovskite single crystal

Abstract

Photocatalytic reduction of CO2 into chemical fuels is one of the important artificial photosynthesis which simulates the natural photosynthesis in green plants, and will be the crucial procedure in the carbon neutral economy. In this current study, we report that the inorganic CsPbBr3 perovskite submicron single crystal is capable to conduct photocatalytic reduction of CO2 directly on its surface with high stability and selectivity in several nonaqueous solvents. The solvent-effects are well studied, which finally lead to an approximately 25 folds enhancement on the photocatalytic rate by substituting toluene with ethyl acetate. A loading of Pt co-catalyst via photochemical deposition process further doubled the electron yield rate which finally reaches to 5.6 μmol/g h, therby implying the optimization on the reaction media and surface catalytic activity are of key importance for superior photocatalytic performance by halide perovskite materials

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Supplementary files

Article information


Submitted
12 Dec 2019
Accepted
09 Feb 2020
First published
10 Feb 2020

Sustainable Energy Fuels, 2020, Accepted Manuscript
Article type
Paper

Solvent selection and Pt decoration towards enhanced photocatalytic CO2 reduction over CsPbBr3 perovskite single crystal

Y. Chen, Y. Xu, X. Wang, H. Chen and D. Kuang, Sustainable Energy Fuels, 2020, Accepted Manuscript , DOI: 10.1039/C9SE01218D

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