Reversible hydrophobic to hydrophilic transition in graphene via water splitting induced by UV irradiation

Xu, Z; Ao, Z; Chu, D; Younis, A; Li, CM; Li, S

Reversible hydrophobic to hydrophilic transition in graphene via water splitting induced by UV irradiation

Xu, Z Ao, Z

Chu, D Younis, A Li, CM Li, S

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Publication Type:: Journal Article
Citation:: Scientific Reports, 2014, 4
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Xu, Z	en_US
dc.contributor.author	Ao, Z https://orcid.org/0000-0003-0333-3727	en_US
dc.contributor.author	Chu, D	en_US
dc.contributor.author	Younis, A	en_US
dc.contributor.author	Li, CM	en_US
dc.contributor.author	Li, S	en_US
dc.date.available	2014-09-01	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Scientific Reports, 2014, 4	en_US
dc.identifier.uri	http://hdl.handle.net/10453/34387
dc.description.abstract	© 2014 Macmillan Publishers Limited. All rights reserved. Although the reversible wettability transition between hydrophobic and hydrophilic graphene under ultraviolet (UV) irradiation has been observed, the mechanism for this phenomenon remains unclear. In this work, experimental and theoretical investigations demonstrate that the H2O molecules are split into hydrogen and hydroxyl radicals, which are then captured by the graphene surface through chemical binding in an ambient environment under UV irradiation. The dissociative adsorption of H2O molecules induces the wettability transition in graphene from hydrophobic to hydrophilic. Our discovery may hold promise for the potential application of graphene in water splitting.	en_US
dc.relation.ispartof	Scientific Reports	en_US
dc.relation.isbasedon	10.1038/srep06450	en_US
dc.title	Reversible hydrophobic to hydrophilic transition in graphene via water splitting induced by UV irradiation	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	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 Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	4	en_US

Abstract:

© 2014 Macmillan Publishers Limited. All rights reserved. Although the reversible wettability transition between hydrophobic and hydrophilic graphene under ultraviolet (UV) irradiation has been observed, the mechanism for this phenomenon remains unclear. In this work, experimental and theoretical investigations demonstrate that the H2O molecules are split into hydrogen and hydroxyl radicals, which are then captured by the graphene surface through chemical binding in an ambient environment under UV irradiation. The dissociative adsorption of H2O molecules induces the wettability transition in graphene from hydrophobic to hydrophilic. Our discovery may hold promise for the potential application of graphene in water splitting.

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http://hdl.handle.net/10453/34387