Metal selenide photocatalysts for visible-light-driven Z-scheme pure water splitting
Chen, Shanshan1; Ma, Guijun2,7; Wang, Qian2,8; Sun, Song3,9; Hisatomi, Takashi1; Higashi, Tomohiro2; Wang, Zheng1; Nakabayashi, Mamiko4; Shibata, Naoya4; Pan, Zhenhua2; Hayashi, Toshio5,6; Minegishi, Tsutomu2; Takata, Tsuyoshi1; Domen, Kazunari1,2
2019-04-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume7Issue:13Pages:7415-7422
Status已发表
DOI10.1039/c9ta00768g
AbstractParticulate metal selenides having narrow bandgaps for photocatalytic overall pure water splitting have not yet been reported due to the severe self-photooxidation of such materials. The present work demonstrates that solid solutions of zinc selenide and copper gallium selenide (ZnSe:CGSe), with absorption edges ranging from 480 to 750 nm, can be employed as H-2 evolution photocatalysts in particulate photocatalyst sheets for Z-scheme pure water splitting, where CoOx/BiVO4 and Au are used as the oxygen evolution photocatalyst and electron mediator, respectively. Photogenerated holes in the metal selenide are efficiently recombined with electrons from BiVO(4)via the Au layer, thus avoiding self-oxidation of the selenides and leading to stable pure water splitting. Varying the ZnSe:CGSe composition demonstrates that both the p-type semiconductor character and excellent photoelectrochemical properties of selenides are vital to efficient Z-scheme water splitting. This study extends the application field of metal selenides in photocatalytic pure water splitting and creates new opportunities for selenide-based photocatalytic systems for solar fuel production.
Indexed BySCI
Language英语
Funding ProjectJapan Society for the Promotion of Science[16H02417] ; Japan Society for the Promotion of Science[15H05494]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000463819400010
PublisherROYAL SOC CHEMISTRY
WOS KeywordREDUCED GRAPHENE OXIDE ; HYDROGEN EVOLUTION ; SOLID-SOLUTION ; REDUCTION ; MEDIATOR ; SULFIDE ; SYSTEMS
Original Document TypeArticle
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://kms.shanghaitech.edu.cn/handle/2MSLDSTB/34161
Collection物质科学与技术学院_PI研究组_马贵军组
Corresponding AuthorDomen, Kazunari
Affiliation1.Shinshu Univ, Ctr Energy & Environm Sci, Nagano 3808553, Japan
2.Univ Tokyo, Sch Engn, Dept Chem Syst Engn, Tokyo 1138656, Japan
3.Univ Sci & Technol China, Collaborat Innovat Ctr Chem Energy Mat, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China
4.Univ Tokyo, Inst Engn Innovat, Tokyo 1138656, Japan
5.Japan Technol Res Assoc Artificial Photosynthet C, Tokyo 1138656, Japan
6.Mitsui Chem Inc, Chiba 2990265, Japan
7.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
8.Univ Cambridge, Dept Chem, Lensfield Rd, Cambridge CB2 1EW, England
9.Anhui Univ, Sch Chem & Chem Engn, Hefei 230601, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Chen, Shanshan,Ma, Guijun,Wang, Qian,et al. Metal selenide photocatalysts for visible-light-driven Z-scheme pure water splitting[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(13):7415-7422.
APA Chen, Shanshan.,Ma, Guijun.,Wang, Qian.,Sun, Song.,Hisatomi, Takashi.,...&Domen, Kazunari.(2019).Metal selenide photocatalysts for visible-light-driven Z-scheme pure water splitting.JOURNAL OF MATERIALS CHEMISTRY A,7(13),7415-7422.
MLA Chen, Shanshan,et al."Metal selenide photocatalysts for visible-light-driven Z-scheme pure water splitting".JOURNAL OF MATERIALS CHEMISTRY A 7.13(2019):7415-7422.
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