Infrared Light-Induced Anomalous Defect-Mediated Plasmonic Hot Electron Transfer for Enhanced Photocatalytic Hydrogen Evolution

被引：90
作者：
Lian, Zichao [1 ]
Wu, Fan [1 ]
Zi, Jiangzhi [1 ]
Li, Guisheng [1 ]
Wang, Wei [2 ,3 ]
Li, Hexing [1 ]
机构：
[1] Univ Shanghai Sci & Technol, Sch Mat & Chem, Shanghai 200093, Peoples R China
[2] Univ Arizona, Dept Pharmacol & Toxicol, Tucson, AZ 85721 USA
[3] Univ Arizona, Dept Chem & Biochem, Tucson, AZ 85721 USA
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2023年 / 145卷 / 28期
基金：
上海市自然科学基金;
关键词：
Copper compounds - Hydrogen - II-VI semiconductors - Photocatalytic activity - Solar energy - Solar power generation - Surface plasmon resonance;
D O I：
10.1021/jacs.3c03990
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Efficientutilization of infrared (IR) light, which occupies almosthalf of the solar energy, is an important but challenging task insolar-to-fuel transformation. Herein, we report the discovery of CuS@ZnScore@shell nanocrystals (CSNCs) with strong localized surface plasmonresonance (LSPR) characteristics in the IR light region showing enhancedphotocatalytic activity in hydrogen evolution reaction (HER). A unique"plasmon-induced defect-mediated carrier transfer" (PIDCT)at the heterointerfaces of the CSNCs divulged by time-resolved transientspectroscopy enables producing a high quantum yield of 29.2%. TheCuS@ZnS CSNCs exhibit high activity and stability in H-2 evolution under near-IR light irradiation. The HER rate of CuS@ZnSCSNCs at 26.9 & mu;mol h(-1) g(-1) is significantly higher than those of CuS NCs (0.4 & mu;mol h(-1) g(-1)) and CuS/ZnS core/satelliteheterostructured NCs (15.6 & mu;mol h(-1) g(-1)). The PIDCT may provide a viable strategy for thetuning of LSPR-generated carrier kinetics through controlling thedefect engineering to improve photocatalytic performance.
引用
收藏
页码：15482 / 15487
页数：6
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