文献类型：期刊文献

英文题名：Synthesis of monodisperse water-stable surface Pb-rich CsPbCl3nanocrystals for efficient photocatalytic CO2reduction

作者：Zhu, Jingrun[1,2,3];Zhu, Yihua[1,2,3];Huang, Jianfei[4];Hou, Lu[1,2,3];Shen, Jianhua[1,2,3];Li, Chunzhong[1,2,3,5]

机构：[1]East China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[4]Univ Calif Santa Barbara, Dept Chem & Biochem, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA;[5]East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：12

期号：22

起止页码：11842

外文期刊名：NANOSCALE

收录：;EI(收录号：20204209351452);WOS:【SCI-EXPANDED(收录号:WOS:000542747100005)】；

基金：This work was supported by the National Natural Science Foundation of China (21838003, 21676093, 91834301, 21776092, and 21808061), the Shanghai Scientific and Technological Innovation Project (19JC1410400), the Innovation Program of Shanghai Municipal Education Commission, and the Fundamental Research Funds for the Central Universities (222201718002).

语种：英文

外文关键词：Molecules - Semiconductor quantum dots - Nanocrystals - Perovskite - Chlorine compounds - Nickel compounds - Photocatalytic activity

摘要：Surface Pb-rich lead halide (CsPbCl3) perovskite nanocrystals (NCs) with high stability and monodispersity in water have been synthesized using a general and convenient liquid-solid interpenetration (LSI) method. In this process, water molecules permeate into the solid CsPbCl3NC layers and slowly dissolve the Cs(+)and Cl(-)ions on the surface of CsPbCl3NCs. The Cs(+)and Cl(-)ions in water inhibit the decomposition rate of CsPbCl3NCs, inducing surface Pb-rich layers. The surface Pb-rich structure increases the photoluminescence (PL) lifetimes and improves the photocatalytic performances of lead halide perovskite NCs. Under simulated solar irradiation, the largest rate of CO(2)photoreduction from surface Pb-rich Ni-doped CsPbCl3NCs reaches up to 169.37 mu mol g(-1)h(-1). This study provides an effective general strategy to design stable lead halide perovskite quantum dots (QDs) for their wide applications.