Hydrogenated CdS nanorods arrays/FTO film: A highly stable photocatalyst for photocatalytic H2 production

被引：17
作者：
Wang, Biying [1 ]
Peng, Feng [2 ]
Yang, Siyuan [3 ]
Cao, Yonghai [1 ]
Wang, Hongjuan [1 ]
Yu, Hao [1 ]
Zhang, Shanqing [4 ,5 ]
机构：
[1] South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
[2] Guangzhou Univ, Guangzhou Key Lab New Energy & Green Catalysis, Sch Chem & Chem Engn, Guangzhou 510006, Guangdong, Peoples R China
[3] South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R China
[4] Griffith Univ, Ctr Clean Environm & Energy, Gold Coast, Qld 4222, Australia
[5] Griffith Univ, Griffith Sch Environm, Gold Coast, Qld 4222, Australia
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 37期
基金：
中国国家自然科学基金;
关键词：
Photocatalysis; Hydrogen production; CdS; Photocorrosion; Hydrogenated CdS; Photostability; DOUBLE-SHELLED NANOCAGES; RATIONAL DESIGN; EFFICIENT; TIO2; EVOLUTION; FABRICATION; PHOTOANODE; MOS2; NANOCOMPOSITES; PHOTOACTIVITY;
D O I：
10.1016/j.ijhydene.2018.07.188
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：
To improve the photocorrosion of CdS nanorod arrays (CdS NRAs), we have designed a simple and facile treatment method of in-situ hydrogenation to fabricate CdS@SnS/SnO2 heterostructure on fluorine-doped tin oxide glass, which is a highly photostable hydrogenated CdS-based film photocatalyst (CdS NRAs-H-2). Over a 25-h long time irradiation, the total photocatalytic hydrogen production of hydrogenated CdS NRAs is almost 2.0 times higher than that of un-hydrogenated CdS NRAs. Moreover, the average hydrogen production rate of CdS NRAs-H-2 can steadily maintain at 23.75 mu mol cm(-2) h (-1) with 102% of retention rate after 5 reaction cycles, while they are only 6.13 mu mol cm(-2) h(-1) with 30% of retention rate for un-hydrogenated common CdS NRAs. The photocatalytic mechanism on enhanced activity and stability for hydrogenated CdS NRAs photocatalyst is also investigated and discussed in detail. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：17696 / 17707
页数：12
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