Issue 14, 2016
From the journal:

Journal of Materials Chemistry A

New Co(OH)2/CdS nanowires for efficient visible light photocatalytic hydrogen production†

Xuan Zhou,a   Jian Jin,b   Xunjin Zhu,*a   Jun Huang,c   Jiaguo Yu,*b   Wai-Yeung Wong*a  and  Wai-Kwok Wong*a  

* Corresponding authors

a Institute of Molecular Functional Materials, Department of Chemistry and Institute of Advanced Materials, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P. R. China
E-mail: xjzhu@hkbu.edu.hk, wkwong@hkbu.edu.hk, rwywong@hkbu.edu.hk

b State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Luoshi Road 122#, Wuhan, P. R. China
E-mail: jiaguoyu@yahoo.com

c Laboratory of Catalysis Engineering, School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia

Abstract

Through a facile impregnation synthesis, new noble-metal-free Co(OH)2/CdS nanowires (NWs) have been developed for photocatalytic hydrogen production. The loading of Co(OH)2 on CdS NWs can effectively accelerate the charge separation and transfer in photocatalytic reactions, leading to an enhanced H2 production rate (HPR). The optimum HPR based on Co(OH)2/CdS reaches 14.43 mmol h−1 g−1 under visible light (λ ≥ 420 nm) irradiation, which is 206 times higher than for the pristine CdS NWs and even 3 times higher than for 1 wt% Pt/CdS NWs as a benchmark. Impressively, core–shell structural Co(OH)2/CdS NWs formed by visible-light-induced self-assembly during the photocatalytic reaction. And the core–shell structural characteristics of the Co(OH)2/CdS NWs can effectively avoid light corrosion, leading to a stable HPR in 12 hours duration.

Graphical abstract: New Co(OH)2/CdS nanowires for efficient visible light photocatalytic hydrogen production

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Article information

DOI
https://doi.org/10.1039/C6TA00325G
Article type
Paper
Submitted
12 Jan 2016
Accepted
07 Mar 2016
First published
11 Mar 2016

J. Mater. Chem. A, 2016,4, 5282-5287

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New Co(OH)2/CdS nanowires for efficient visible light photocatalytic hydrogen production

X. Zhou, J. Jin, X. Zhu, J. Huang, J. Yu, W. Wong and W. Wong, J. Mater. Chem. A, 2016, 4, 5282 DOI: 10.1039/C6TA00325G

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