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	Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting
	Wang, Chong1; Ma, Bin2; Cao, Xingzhong3; He, Shan1; Han, Jingbin1; Wei, Min1; Evans, David G.1; Duan, Xue1
刊名	Journal of materials chemistry a
	2018-05-07
卷号	6期号:17页码:7871-7876
ISSN号	2050-7488
DOI	10.1039/c8ta02001a
通讯作者	Han, jingbin(hanjb@mail.buct.edu.cn) ; Wei, min(weimin@mail.buct.edu.cn)
英文摘要	Interfacial carrier transportation is a key step in photocatalytic water splitting reaction. herein, we fabricated a series of cu2o@zncr-layered double hydroxide (ldh) photocatalysts with tunable interfacial properties, by precise regulation over a covalent-bonding-bridge structure at the heterointerface. the cu2o@zncrldh photocatalyst with an optimized interface exhibits a stoichiometric production of h-2 and o-2 with a generation rate of 3.42 and 1.63 mu mol h(-1), respectively, without any sacrificial agents or co-catalysts. this activity is among the highest reported for photocatalysts under the same conditions. by using extended x-ray absorption fine structure (exafs) and coincidence doppler broadening positron annihilation spectroscopy (cdb-pas), for the first time, we substantiated that a bridge-type bonding at the heterointerface strongly facilitates the interfacial transportation of photo-induced carriers via a z-scheme route. this provides direct experimental evidence for carrier interfacial transportation, beyond previously reported theoretical predictions and simulations. it is expected that this modulation and optimization over the heterostructure interface can be extended to other dual-semiconductor photocatalysts with high performance.
WOS关键词	STATE ELECTRON MEDIATOR ; REDUCED GRAPHENE OXIDE ; VISIBLE-LIGHT-DRIVEN ; HYDROGEN EVOLUTION ; FE-CU ; PHOTOCATALYST ; DEGRADATION ; IRRADIATION ; POLLUTANTS ; EFFICIENCY
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000431621700061
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177586
专题	高能物理研究所
通讯作者	Han, Jingbin; Wei, Min
作者单位	1.Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.Univ Grenoble Alpes, ISTerre, F-38000 Grenoble, France 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chong,Ma, Bin,Cao, Xingzhong,et al. Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting[J]. Journal of materials chemistry a,2018,6(17):7871-7876.
APA	Wang, Chong.,Ma, Bin.,Cao, Xingzhong.,He, Shan.,Han, Jingbin.,...&Duan, Xue.(2018).Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting.Journal of materials chemistry a,6(17),7871-7876.
MLA	Wang, Chong,et al."Bridge-type interface optimization on a dual-semiconductor heterostructure toward high performance overall water splitting".Journal of materials chemistry a 6.17(2018):7871-7876.

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