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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/9225

Title: Reversible hydrophobic to hydrophilic transition in graphene via water splitting induced by UV irradiation
Authors: Xu, Z
Ao, Z
Chu, D
Younis, A
Li, CM
Li, S
Keywords: Graphene
Irradiation
Ultraviolet radiation
Water
Hydrogen
Hydroxyl radicals
Wettability
Issue Date: 1-Sep-2014
Publisher: Macmillan Publisher
Citation: Xu, Z., Ao, Z., Chu, D., Younis, A., Li, C. M., & Li, S. (2014). Reversible hydrophobic to hydrophilic transition in graphene via water splitting induced by UV irradiation. Scientific Reports, 4, 6450. doi:10.1038/srep06450
Abstract: 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. © 2014, Macmillan Publishers Limited
URI: https://doi.org/10.1038/srep06450
http://apo.ansto.gov.au/dspace/handle/10238/9225
ISSN: 2045-2322
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