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Enhanced Photocatalytic Activity for CO2 Reduction over a CsPbBr3/CoAl-LDH Composite: Insight into the S-Scheme Charge Transfer Mechanism

文献类型： 外文期刊

作者： Li, Deben 1 ; Zhou, Jiaxin 2 ; Zhang, Zhijie 1 ; Jiang, Ying 1 ; Dong, Zhongliang 1 ; Xu, Jiayue 1 ; Yao, Chunxia 2 ;

作者机构： 1.Shanghai Inst Technol, Sch Mat Sci & Engn, Shanghai 201418, Peoples R China

2.Shanghai Acad Agr Sci, Inst Agrofood Stand & Testing Technol, Shanghai 201403, Peoples R China

关键词： S-scheme heterojunction; CsPbBr3; photocatalysis; CO2 reduction; charge separation

期刊名称：ACS APPLIED ENERGY MATERIALS （ 影响因子：6.959； 五年影响因子：7.01 ）

ISSN： 2574-0962

年卷期：

页码：

收录情况： SCI

摘要： The construction of an S-scheme heterojunction is recognized as a promising approach to developing efficient photocatalytic systems. Herein, a novel S-scheme heterojunction of CsPbBr3 nanocrystals/CoAl layered double hydroxide (LDH) nanosheets was fabricated and applied for photocatalytic conversion of CO2. CsPbBr3/CoAl-LDH composites exhibited superior activity for CO2 photoreduction under visible light. The composite containing 60 wt % CsPbBr3 displayed the optimal photocatalytic perform-ance, which was enhanced by 2.6 and 9.9 times compared to CsPbBr3 and CoAl-LDH, respectively. Moreover, this composite also showed stable photocatalytic activity with no detectable decrease after four cycles. The formation of an S-scheme heterojunction can promote the electron-hole separation and provide a higher redox potential of the composite, thus leading to the remarkable photocatalytic performance toward CO2 reduction. This study provides a new perspective for designing and manufacturing perovskite-based S-scheme photocatalytic systems for CO2 reduction.

  • 相关文献

[1]Enhanced Photocatalytic Activity for CO2 Reduction over a CsPbBr3/CoAl-LDH Composite: Insight into the S-Scheme Charge Transfer Mechanism. Li, Deben,Zhang, Zhijie,Jiang, Ying,Dong, Zhongliang,Xu, Jiayue,Zhou, Jiaxin,Yao, Chunxia. 2022

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