期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 44, 期 13, 页码 6592-6607出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.01.214
关键词
Anti-symmetric dual (ASD) Z-scheme photocatalytic system ZnIn2S4/Er3+:Y3Al5O12@ZnTiO3/CaIn2S4 composite; Up-conversion luminescence agent; Organic contaminants; Photocatalytic degradation; Simultaneous hydrogen evolution
资金
- National Science Foundation of China [21371084]
- Key Laboratory Basic Research Foundation of Liaoning Provincial Education Department [L2015043]
- Innovative Team Project of Education Department of Liaoning Province of China [LT2018]
- Key Laboratory Project of Shenyang Municipal Sceience and Technology Plan
An anti-symmetric dual (ASD) Z-scheme ZnIn2S4/Er3+:Y3Al5O12@ZnTiO3/CaIn2S4 photo-catalyst was prepared by isoelectric point and calcination methods. The photocatalytic activity is estimated via degradation of Acid Orange II as a target organic contaminant with simultaneous hydrogen evolution under simulated solar-light irradiation. The prepared ASD Z-scheme ZnIn2S4/Er3+:Y3Al5O12@ZnTiO3/CaIn2S4 photocatalyst has a high photo-catalytic activity, which can be assigned to the enlarged photoresponse range, increased reduction surface and enhanced separation efficiency of photo-induced carriers. Furthermore, the cyclic experiment proves that the prepared ASD Z-scheme ZnIn2S4/Er3+:Y3Al5O12@ZnTiO3/CaIn2S4 photocatalyst still maintains a high photocatalytic activity within five repetitive cycles. Moreover, the mechanism on photocatalytic degradation of organic pollutants with simultaneous hydrogen evolution caused by ASD Z-scheme ZnIn2S4/Er3+:Y3Al5O12@ZnTiO3/CaIn2S4 photocatalyst is proposed. It is wished that this study could provide a promising pathway for effective degradation and rapid hydrogen production. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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