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

Xuan Zhou; Jian Jin; Xunjin Zhu; Jun Huang; Jiaguo Yu; Wai Yeung Wong; Wai Kwok Wong

doi:10.1039/c6ta00325g

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

Xuan Zhou, Jian Jin, Xunjin Zhu, Jun Huang, Jiaguo Yu, Wai Yeung Wong, Wai Kwok Wong

Research output: Journal article publication › Journal article › Academic research › peer-review

119 Citations (Scopus)

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)2on CdS NWs can effectively accelerate the charge separation and transfer in photocatalytic reactions, leading to an enhanced H2production rate (HPR). The optimum HPR based on Co(OH)2/CdS reaches 14.43 mmol h-1g-1under 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.

Original language	English
Pages (from-to)	5282-5287
Number of pages	6
Journal	Journal of Materials Chemistry A
Volume	4
Issue number	14
DOIs	https://doi.org/10.1039/c6ta00325g
Publication status	Published - 1 Jan 2016
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1039/c6ta00325g

Cite this

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

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)2on CdS NWs can effectively accelerate the charge separation and transfer in photocatalytic reactions, leading to an enhanced H2production rate (HPR). The optimum HPR based on Co(OH)2/CdS reaches 14.43 mmol h-1g-1under 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.",

author = "Xuan Zhou and Jian Jin and Xunjin Zhu and Jun Huang and Jiaguo Yu and Wong, {Wai Yeung} and Wong, {Wai Kwok}",

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AU - Zhou, Xuan

AU - Jin, Jian

AU - Zhu, Xunjin

AU - Huang, Jun

AU - Yu, Jiaguo

AU - Wong, Wai Yeung

AU - Wong, Wai Kwok

PY - 2016/1/1

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N2 - 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)2on CdS NWs can effectively accelerate the charge separation and transfer in photocatalytic reactions, leading to an enhanced H2production rate (HPR). The optimum HPR based on Co(OH)2/CdS reaches 14.43 mmol h-1g-1under 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.

AB - 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)2on CdS NWs can effectively accelerate the charge separation and transfer in photocatalytic reactions, leading to an enhanced H2production rate (HPR). The optimum HPR based on Co(OH)2/CdS reaches 14.43 mmol h-1g-1under 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.

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