Construction of urchin-like ZnIn<inf>2</inf>S<inf>4</inf>-Au-TiO<inf>2</inf> heterostructure with enhanced activity for photocatalytic hydrogen evolution

Yang, G; Ding, H; Chen, D; Feng, J; Hao, Q; Zhu, Y

Construction of urchin-like ZnIn<inf>2</inf>S<inf>4</inf>-Au-TiO<inf>2</inf> heterostructure with enhanced activity for photocatalytic hydrogen evolution

Yang, G Ding, H Chen, D Feng, J Hao, Q

Zhu, Y

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Publication Type:: Journal Article
Citation:: Applied Catalysis B: Environmental, 2018, 234 pp. 260 - 267
Issue Date:: 2018-10-06

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Field	Value	Language
dc.contributor.author	Yang, G	en_US
dc.contributor.author	Ding, H	en_US
dc.contributor.author	Chen, D	en_US
dc.contributor.author	Feng, J	en_US
dc.contributor.author	Hao, Q https://orcid.org/0000-0001-9981-7499	en_US
dc.contributor.author	Zhu, Y https://orcid.org/0000-0001-8528-509X	en_US
dc.date.issued	2018-10-06	en_US
dc.identifier.citation	Applied Catalysis B: Environmental, 2018, 234 pp. 260 - 267	en_US
dc.identifier.issn	0926-3373	en_US
dc.identifier.uri	http://hdl.handle.net/10453/133080
dc.description.abstract	© 2018 Elsevier B.V. The ternary ZnIn2S4-Au-TiO2 Z-scheme heterostructure photocatalysts has been fabricated by selecting effectiveness Au NPs as a solid electron mediator, via a chemical-deposition process for water splitting under simulated solar light irradiation. The designed photocatalysts exhibit high surface area and wide light absorption range, which significantly enhance photocatalytic efficiency. At an optimal ratio of 24 wt% Au NPs and 60 wt% ZnIn2S4, the obtained ZnIn2S4-Au-TiO2 photocatalysts achieve the highest H2 production with the rate of 186.3 μmol g−1 h−1, and the O2 production rate is reached to 66.3 μmol g−1 h−1. It showed that the ZnIn2S4-Au-TiO2 composite structures exhibit significantly better photocatalytic activity than ZnIn2S4-TiO2 and Au-ZnIn2S4-TiO2 structure. Such an excellent performance should be attributed to the Au NPs in the Z-scheme system structure which favor to enhance the transfer rate of the photogenerated electrons and holes and remain strong redox ability of the photocatalysts. It is worth pointing out that the unique Z-scheme ZnIn2S4-Au-TiO2 heterostructure shows great solar activity toward water splitting into renewable hydrocarbon fuel.	en_US
dc.relation.ispartof	Applied Catalysis B: Environmental	en_US
dc.relation.isbasedon	10.1016/j.apcatb.2018.04.038	en_US
dc.subject.classification	Physical Chemistry	en_US
dc.title	Construction of urchin-like ZnIn<inf>2</inf>S<inf>4</inf>-Au-TiO<inf>2</inf> heterostructure with enhanced activity for photocatalytic hydrogen evolution	en_US
dc.type	Journal Article
utslib.citation.volume	234	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	0907 Environmental Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	234	en_US

Abstract:

© 2018 Elsevier B.V. The ternary ZnIn2S4-Au-TiO2 Z-scheme heterostructure photocatalysts has been fabricated by selecting effectiveness Au NPs as a solid electron mediator, via a chemical-deposition process for water splitting under simulated solar light irradiation. The designed photocatalysts exhibit high surface area and wide light absorption range, which significantly enhance photocatalytic efficiency. At an optimal ratio of 24 wt% Au NPs and 60 wt% ZnIn2S4, the obtained ZnIn2S4-Au-TiO2 photocatalysts achieve the highest H2 production with the rate of 186.3 μmol g−1 h−1, and the O2 production rate is reached to 66.3 μmol g−1 h−1. It showed that the ZnIn2S4-Au-TiO2 composite structures exhibit significantly better photocatalytic activity than ZnIn2S4-TiO2 and Au-ZnIn2S4-TiO2 structure. Such an excellent performance should be attributed to the Au NPs in the Z-scheme system structure which favor to enhance the transfer rate of the photogenerated electrons and holes and remain strong redox ability of the photocatalysts. It is worth pointing out that the unique Z-scheme ZnIn2S4-Au-TiO2 heterostructure shows great solar activity toward water splitting into renewable hydrocarbon fuel.

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http://hdl.handle.net/10453/133080