文献类型： 外文期刊
第一作者： Dong, Yuanyuan
作者： Dong, Yuanyuan;Li, Kailin;Zhu, Cheng;Guan, Haoliang;Wang, Hao;Wang, Lanning;Bai, Yang;Li, Yujing;Chen, Qi;Luo, Wenjia;Deng, Kailin;Zhou, Huanping;Xie, Haipeng
作者机构：
关键词： halide perovskite; Pb-II sites; photocatalysis; surface termination; triose
期刊名称：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION （ 影响因子：15.336； 五年影响因子：14.205 ）
ISSN： 1433-7851
年卷期： 2020 年 59 卷 31 期
页码：
收录情况： SCI
摘要： 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 mu g 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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