4.6 Article

A novel noble metal-free ZnS-WS2/CdS composite photocatalyst for H2 evolution under visible light irradiation

Journal

CATALYSIS COMMUNICATIONS
Volume 40, Issue -, Pages 51-54

Publisher

ELSEVIER
DOI: 10.1016/j.catcom.2013.05.025

Keywords

ZnS-WS2/CdS; H-2 evolution; Synergistic effect; ZnS passivation; Noble metal-free

Funding

  1. NSFC [21173260, 51072221]
  2. MOST (973) [2012CB932903, 2012CB932904]
  3. Chinese Academy of Sciences

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A novel ZnS-WS2/CdS composite photocatalyst for H-2 evolution under visible light irradiation has been successfully synthesized. The loading amounts of WS2 and ZnS on the CdS surface were optimized. A H-2 evolution rate up to 1224 mu mol.h(-1) has been achieved for the 9.6 mol% ZnS-1 mol% WS2/CdS photocatalyst. The enhancement of the photocatalytic activity is attributed to the synergistic effect of WS2 as co-catalyst and ZnS as passivation layer. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.

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