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The Role of Surface Termination in Halide Perovskites for Efficient Photocatalytic Synthesis by Yuanyuan Dong; Kailin Li; Wenjia Luo; Cheng Zhu; Haoliang Guan; Hao Wang; Lanning Wang; Kailin Deng; Huanping Zhou; Haipeng Xie; Yang Bai; Yujing Li; Qi Chen is a Chemistry article available to read on EtoBox.

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## Abstract Halide perovskites have received attention in the field of photocatalysis owing to their excellent optoelectronic properties. However, the semiconductor properties of halide perovskite surfaces and the influence on photocatalytic performance have not been systematically clarified. Now, the conversion of triose (such as 1,3‐dihydroxyacetone (DHA)) is employed as a model reaction to explore the surface termination of MAPbI~3~. By rational design of the surface termination for MAPbI~3~, the production rate of butyl lactate is substantially improved to 7719 μg g^−1^ cat. h^−1^ under visible‐light illumination. The MAI‐terminated MAPbI~3~ surface governs the photocatalytic performance. Specially, MAI‐terminated surface is susceptible to iodide oxidation, which thus promotes the exposure of Pb^II^ as active sites for this photocatalysis process. Moreover, MAI‐termination induces a p‐doping effect near the surface for MAPbI~3~, which facilitates carrier transport and thus photosynthesis.

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Author

Yuanyuan Dong; Kailin Li; Wenjia Luo; Cheng Zhu; Haoliang Guan; Hao Wang; Lanning Wang; Kailin Deng; Huanping Zhou; Haipeng Xie; Yang Bai; Yujing Li; Qi Chen

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley; Research Square (ISSN 0044-8249)

Published

2020

Language

EN

Field

Chemistry (Physical Sciences)