Highly efficient colloidal MnxCd1-xS nanorod solid solution for photocatalytic hydrogen generation

被引:78
作者
Li, Ling [1 ]
Liu, Guoning [1 ]
Qi, Shaopeng [1 ]
Liu, Xindi [1 ]
Gu, Liuyu [1 ]
Lou, Yongbing [1 ]
Chen, Jinxi [1 ]
Zhao, Yixin [2 ]
机构
[1] Southeast Univ, Jiangsu Key Lab Sci & Applicat Mol Ferroelect, Jiangsu Engn Lab Smart Carbon Rich Mat & Device, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China
基金
中国国家自然科学基金;
关键词
LIGHT-DRIVEN PHOTOCATALYST; MN-CD-S; VISIBLE-LIGHT; H-2; EVOLUTION; HYDROTHERMAL SYNTHESIS; WATER; NANOWIRES; COMPOSITE;
D O I
10.1039/c8ta08458k
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this study, a series of MnxCd1-xS nanorods solid solutions featuring precisely controlled band gap and suitable conduction band position were fabricated for the first time with a hot-injection synthesis under N-2 atmosphere. Correspondingly, the colloidal Mn0.5Cd0.5S solid solution exhibited the highest photocatalytic H-2 generation rate of 26000 mol g(-1) h(-1) and the apparent quantum efficiency of 30.3% at 400 nm, which is approximately 216 times higher than that of pristine h-CdS and 565 times higher than that of -MnS alone. Moreover, the MnxCd1-xS solid solution showed good photocatalytic stability because of a proper conduction band position and high crystallinity. This work demonstrates that this hot-injection strategy for developing highly efficient MnxCd1-xS solid solution is promising for preparing other binary or multicomponent solid solutions for a variety of photocatalytic applications.
引用
收藏
页码:23683 / 23689
页数:7
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