Simultaneous Realization of Enhanced Photoactivity and Promoted Photostability by Multilayered MoS2Coating on CdS Nanowire Structure via Compact Coating Methodology.
CdS has been regarded as a promising photocatalytic water-splitting visible-light photocatalyst, but low catalytic activity and photocorrosion seriously limited its practical application. Here, inspired by core-shell principles, we try to fabricate CdS@MoS2core-shell structures by utilizing unstable CdS nanowires as core and multilayered MoS2as shell. Multilayered MoS2not only serves as a protective shell to preserve CdS but also provides abundant reactive sites and forms a type I junction, giving rise to remarkable hydrogen production activities. The optimum hydrogen production rate based on CdS@MoS2core-shell composite reaches 26.14 mmol·h-1·g-1, which is about 54 times greater than that of pure CdS and about twice that of CdS nanowires with 1% Pt. Impressively, the presentation of MoS2nanosheets can effectively avoid photocorrosion, which resulted in 12 h stable hydrogen production.
State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University , Fuzhou 350002, People's Republic of China.
Yu
Y
Yang
State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University , Fuzhou 350002, People's Republic of China.
Yan
Y
Zhang
State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University , Fuzhou 350002, People's Republic of China.
Zhibin
Z
Fang
State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University , Fuzhou 350002, People's Republic of China.
Lulu
L
Zhang
State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University , Fuzhou 350002, People's Republic of China.
Zuyang
Z
Zheng
State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University , Fuzhou 350002, People's Republic of China.
Zhenfeng
Z
Wang
State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University , Fuzhou 350002, People's Republic of China.
Wenhui
W
Feng
State Grid Fujian Electric Power Research Institute , Fuzhou 350002, People's Republic of China.
Sunxian
S
Weng
Hunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University , Changsha 410022, People's Republic of China.
Shiying
S
Zhang
State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University , Fuzhou 350002, People's Republic of China.
Ping
http://orcid.org/0000-0003-0418-3812
P
Liu
CdS nanowires; core−shell structure; multilayered MoS2; photocatalyst; photocorrosion