Mn-doped CsPb(Br/Cl)3 mixed-halide perovskites for CO2 photoreduction

Halide perovskites have been employed as photocatalysts for CO2 photoreduction due to their excellent optical properties and unique electronic structure. However, their photocatalytic performance is relatively poor. Herein, we demonstrate a new strategy with Mn-doped CsPb(Br/Cl)3 mixed-halide perovs...

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Bibliographic Details
Published in:Nanotechnology 2020-05, Vol.31 (21), p.215605-215605
Main Authors: Liu, Yu-Wei, Guo, Shao-Hong, You, Si-Qi, Sun, Chun-Yi, Wang, Xin-Long, Zhao, Liang, Su, Zhong-Min
Format: Article
Language:English
Subjects:
mixed-halide perovskites
Mn-dpoed
photocatalysis
reduction
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Summary:Halide perovskites have been employed as photocatalysts for CO2 photoreduction due to their excellent optical properties and unique electronic structure. However, their photocatalytic performance is relatively poor. Herein, we demonstrate a new strategy with Mn-doped CsPb(Br/Cl)3 mixed-halide perovskites as catalysts to enhance the efficiency of CO2 photoreduction. By tuning the content of Mn, a series of CsPb(Br/Cl)3:Mn perovskites are obtained and show high efficiency in CO2 conversion to CO and CH4. For the optimum catalyst sample, especially, the yields of CO and CH4 reach 1917 mol g−1 and 82 mol g−1 which are 14.2 and 1.4 times higher than those of CsPbBr3. This work provides new insights into improving the reactivity of perovskites in CO2 photoreduction.
ISSN:0957-4484
1361-6528
DOI:10.1088/1361-6528/ab72be