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题名: Biomolecule-assisted hydrothermal synthesis of Zn(x)Cdi(1-x)S nanocrystals and their outstanding photocatalytic performance for hydrogen production
作者: Liu, Meiying1;  He, Yunfei1;  Chen, Hong1;  Zhao, Hongmei1;  You, Wansheng1;  Shi, Jingying2;  Zhang, Lancui1;  Li, Jiansheng1
关键词: zn(x)cd(1-x)s ;  Hydrogen production ;  Water splitting ;  L-cystine ;  Green synthesis
刊名: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
发表日期: 2017-08-17
DOI: 10.1016/j.ijhydene.2017.06.196
卷: 42, 期:33, 页:20970-20978
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Chemistry ;  Electrochemistry ;  Energy & Fuels
英文摘要: To achieve scalable applications in solar hydrogen production, it is necessary to develop visible-light-responsive photocatalysts that are highly efficient, cost-effective, stable and environmentally-benign. Here narrow bandgap Zn-Cd-S solid solution photocatalysts (Eg = 2.11-2.53 eV) were prepared via a facile and green hydrothermal strategy under mild conditions. Amazingly, over the naked Zn(0.5)Cd(0.5)s photocatalyst, an extraordinarily high H-2 production activity in Na2S-Na(2)So(3) aqueous solution is achieved up to 18.3 mmol h(-1) g(-1) with an apparent quantum efficiency of 73.8% per 50 mg under 420 nm light irradiation, which, to our knowledge, outperforms cocatalyst-free metal sulfide photocatalysts previously reported to date. Such super high performance arises from the enhanced visible light-absorption capacity, suitable conduction and valence band potential together with the facilitated charge transport in Zn-Cd-S solid solutions. This work may open an avenue for the green preparation of inexpensive photocatalysts for solar H2 production. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
关键词[WOS]: VISIBLE-LIGHT IRRADIATION ;  REDUCED GRAPHENE OXIDE ;  SOLID-SOLUTIONS ;  FACILE SYNTHESIS ;  H-2 PRODUCTION ;  TEMPLATE-FREE ;  L-METHIONINE ;  L-CYSTINE ;  EFFICIENT ;  SEMICONDUCTOR
语种: 英语
WOS记录号: WOS:000410010600005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149930
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Liaoning Normal Univ, Sch Chem & Chem Engn, Dalian 116029, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Liu, Meiying,He, Yunfei,Chen, Hong,et al. Biomolecule-assisted hydrothermal synthesis of Zn(x)Cdi(1-x)S nanocrystals and their outstanding photocatalytic performance for hydrogen production[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2017,42(33):20970-20978.
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