Efficient defect-controlled photocatalytic hydrogen generation based on near-infrared Cu-In-Zn-S quantum dots

作     者：Xiao-Yuan Liu Guozhen Zhang Hao Chen Haowen Li Jun Jiang Yi-Tao Long Zhijun Ning 

作者机构：School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China School of Chemistry and Materials Science Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials (LMBD) University of Science and Technology of China (USTC) Hefei 230026 China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2018年第11卷第3期

页      面：1379-1388页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 082304[工学-载运工具运用工程] 08[工学] 0817[工学-化学工程与技术] 080204[工学-车辆工程] 0703[理学-化学] 0802[工学-机械工程] 070301[理学-无机化学] 0823[工学-交通运输工程] 

基　　金：This work is supported by the start-up funding from ShanghaiTech University  the Young 1000 Talents Program  the National Natural Science Foundation of China (Nos. U1632118  21571129  and 21571129)  the National Basic Research Program of China (Nos. 2016YFA0204000 and 2013CB733700)  Science and Technology Commission of Shanghai Municipality (Nos. 16JC1402100 and 16520720700) and the National Natural Science Foundation of China for Creative Research Groups (No. 21421004). We thank Dr. Yanyan Jia at the testing center at School of Physical Science and Technology  Protein center 

主　　题：quantum dots photocatalysis hydrogen generation surface defect 

摘      要：The development of photocatalysts that can effectively harvest visible light is essential for advances in high-efficiency solar-driven hydrogen generation. Herein, we synthesized water soluble CuInS2 （CIS） and Cu-In-Zn-S （CIZS） quantum dots （QDs） by using one-pot aqueous method. The CIZS QDs are well passivated by glutathione ligands and are highly stable in aqueous conditions. We subsequently applied these QDs as a light harvesting material for photocatalytic hydrogen generation. Unlike most small band gap materials that show extremely low efficienc36 these new QDs display remarkable energy conversion efficiency in the visible and near-infrared regions. The external quantum efficiency at 650 nm is - 1.5%, which, to the best of our knowledge, is the highest value achieved until now in the near-infrared region.