期刊
NANOTECHNOLOGY
卷 31, 期 21, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab72be
关键词
mixed-halide perovskites; Mn-dpoed; photocatalysis; CO2 reduction
资金
- National Natural Science Foundation of China [21971032, 21801038, 21771035, 21671034]
- Jilin Provincial Department of Science and Technology [20190103018JH]
- Foundation of Jilin Educational Committee [JJKH20190278KJ]
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 mu mol g(-1) and 82 mu 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.
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