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

第一作者： Li, Deben

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

作者机构：

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.

分类号：

  • 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

作者其他论文 更多>>

微信小程序