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dc.contributor.authorWang, Tianqi
dc.contributor.authorJiang, Zhifeng
dc.contributor.authorChu, Ka Him
dc.contributor.authorWu, Dan
dc.contributor.authorWang, Bo
dc.contributor.authorSun, Hongli
dc.contributor.authorYip, Ho Yin
dc.contributor.authorAn, Taicheng
dc.contributor.authorZhao, Huijun
dc.contributor.authorWong, Po Keung
dc.date.accessioned2019-07-05T12:32:51Z
dc.date.available2019-07-05T12:32:51Z
dc.date.issued2018
dc.identifier.issn1864-5631
dc.identifier.doi10.1002/cssc.201800059
dc.identifier.urihttp://hdl.handle.net/10072/385115
dc.description.abstractPhotocatalytic overall water splitting (POWS) is a promising route for converting solar energy into green and sustainable energy. Herein, we report a facile hydrothermal approach for the fabrication of x‐shaped α‐FeOOH photocatalysts containing high‐index facets for POWS. The x‐shaped α‐FeOOH photocatalysts exhibited enhanced visible‐light‐driven POWS activities in comparison with that of FeOOH without x‐structures, with a maximum H2 and O2 evolution rate of 9.2 and 4.7 μmol h−1 g−1, respectively. The morphology and particle size of the α‐FeOOH could be controlled by adjusting the NH4F concentration in the precursors. The photodeposition of Pt and RuO2 on the x‐shaped α‐FeOOH revealed the specially separated reduction and oxidation centers on the surface of α‐FeOOH, with the oxidation‐active sites selectively located on the edges of the α‐FeOOH x‐structures. Electrochemical experiments further affirmed the enhanced charge separation in the x‐shaped α‐FeOOH. The smaller particle size and unique x‐shape of the α‐FeOOH photocatalyst were shown to enhance the POWS performance owing to the large specific surface area, high proportion of exposed high‐index facets, high electron‐transfer efficiency and effective separation of the photogenerated electron–hole pairs. The current study revealed that the x‐shaped α‐FeOOH products could serve as cost‐effective and stable photocatalysts for POWS.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherWiley Online
dc.publisher.placeGermany
dc.relation.ispartofpagefrom1365
dc.relation.ispartofpageto1373
dc.relation.ispartofissue8
dc.relation.ispartofjournalChemSusChem
dc.relation.ispartofvolume11
dc.subject.fieldofresearchChemical Sciences not elsewhere classified
dc.subject.fieldofresearchAnalytical Chemistry
dc.subject.fieldofresearchOther Chemical Sciences
dc.subject.fieldofresearchChemical Engineering
dc.subject.fieldofresearchcode039999
dc.subject.fieldofresearchcode0301
dc.subject.fieldofresearchcode0399
dc.subject.fieldofresearchcode0904
dc.titleX-Shaped α-FeOOH with Enhanced Charge Separation for Visible-Light-Driven Photocatalytic Overall Water Splitting
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: X-Shaped α-FeOOH with Enhanced Charge Separation for Visible-Light-Driven Photocatalytic Overall Water Splitting, ChemSusChem, Volume11, Issue8, April 25, 2018, Pages 1365-1373, which has been published in final form at https://doi.org/10.1002/cssc.201800059. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html)
gro.hasfulltextFull Text
gro.griffith.authorZhao, Huijun


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