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dc.contributor.authorAbdullah, A. M.
dc.contributor.authorGracia-Pinilla, Miguel Á.
dc.contributor.authorPillai, Suresh C.
dc.contributor.authorO’Shea, Kevin
dc.date.accessioned2020-02-14T10:20:43Z
dc.date.available2020-02-14T10:20:43Z
dc.date.copyright2019
dc.date.issued2019-06-06
dc.identifier.citationAbdullah, A.M., Garcia-Pinilla, M.Á., Pillai, S.C. and O'Shea, K. (2019) "UV and Visible Light-Driven Production of Hydroxyl Radicals by Reduced Forms of N, F, and P Codoped Titanium Dioxide", Molecules, 24(11), pp.2147. DOI: 10.3390/molecules24112147en_US
dc.identifier.issn1420-3049
dc.identifier.urihttp://research.thea.ie/handle/20.500.12065/3005
dc.description.abstractThe photocatalytic activities of reduced titanium dioxide (TiO2) materials have been investigated by measuring their ability to produce hydroxyl radicals under UV and visible light irradiation. Degussa P25 TiO2 was doped with nitrogen (N), fluorine (F), and/or phosphorus (P) and then subjected to surface modification employing a thermo-physicochemical process in the presence of reducing agent sodium borohydride (NaBH4). The reduced TiO2 materials were characterized by a number of X-ray, spectroscopic and imaging methods. Surface doping of TiO2 was employed to modulate the band gap energies into the visible wavelength region for better overlap with the solar spectrum. Hydroxyl radical generation, central to TiO2 photocatalytic water purification applications, was quantitated using coumarin as a trap under UV and visible light irradiation of the reduced TiO2 materials. At 350 nm irradiation, the yield of hydroxyl radicals generated by the reduced forms of TiO2 was nearly 90% of hydroxyl radicals generated by the Degussa P25 TiO2. Hydroxyl radical generation by these reduced forms of TiO2 was also observed under visible light irradiation (419 and 450 nm). These results demonstrated that simple surface modification of doped TiO2 can lead to visible light activity, which is important for more economical solar-driven applications of TiO2 photocatalysis.en_US
dc.formatPdfen_US
dc.publisherMDPIen_US
dc.relation.ispartofMoleculesen_US
dc.rightsAttribution 3.0 Ireland*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/ie/*
dc.subjectTitanium dioxideen_US
dc.subjectPhotocatalysisen_US
dc.subjectHydroxyl groupen_US
dc.subjectUltraviolet radiationen_US
dc.titleUV and Visible Light-Driven Production of Hydroxyl Radicals by Reduced Forms of N, F, and P Codoped Titanium Dioxide /en_US
dc.typeArticleen_US
dc.contributor.grantnoCHE-1710111en_US
dc.contributor.sponsorNational Science Foundationen_US
dc.description.peerreviewyesen_US
dc.identifier.endpage2147en_US
dc.identifier.issue24en_US
dc.identifier.startpage(11)en_US
dc.identifier.urlDOI: 10.3390/molecules24112147en_US
dc.identifier.volume2019en_US
dc.rights.accessCreative Commons Attribution 3.0en_US
dc.subject.departmentDept of Life Sciences, ITSen_US


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Attribution 3.0 Ireland
Except where otherwise noted, this item's license is described as Attribution 3.0 Ireland