In situ ATR-FTIR study of H2O and D2O adsorption on TiO2 under UV irradiation

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dc.identifier.uri Belhadj, Hamza Hakki, Amer Robertson, Peter K.J. Bahnemann, Detlef W. 2015-12-03T10:13:28Z 2015-08-06
dc.identifier.citation Belhadj, Hamza; Hakki, Amer; Robertson, Peter K. J.; Bahnemann, Detlef W.: In situ ATR-FTIR study of H2O and D2O adsorption on TiO2 under UV irradiation. In: Physical Chemistry Chemical Physics 17 (2015), Nr. 35, S. 22940-22946. DOI:
dc.description.abstract The adsorption of water and deuterium oxide on TiO2 surfaces was investigated in the dark as well as under UV(A) irradiation using in situ ATR-FTIR spectroscopy under oxygen and oxygen free conditions. Adsorption of H2O–D2O mixtures revealed an isotopic exchange reaction occurring onto the surface of TiO2 in the dark. Under UV(A) irradiation, the amount of both OH and OD groups was found to be increased by the presence of molecular oxygen. Furthermore, the photocatalytic formation of hydroperoxide under oxygenated condition has been recorded utilizing Attenuated Total Reflection Fourier Transformed Infrared (ATR-FTIR) spectroscopy which appeared as new band at 3483 cm−1. Different possible mechanisms are discussed in terms of the source of hydroxyl groups formed and/or hydration water on the TiO2 surface for the photocatalytic reaction and photoinduced hydrophilicity. eng
dc.description.sponsorship Mega-grant of the Government of the Russian Federation/Establishment of the Laboratory ‘Photoactive Nanocomposite Materials’/No. 14.Z50.31.0016
dc.language.iso eng eng
dc.publisher Cambridge : Royal Society of Chemistry
dc.relation.ispartofseries Physical Chemistry Chemical Physics 17 (2015), Nr. 35
dc.rights CC BY-NC 3.0 Unported
dc.subject photoinduced hydrophilicity eng
dc.subject photocatalysis eng
dc.subject surfaces eng
dc.subject water eng
dc.subject spectroscopy eng
dc.subject mechanism eng
dc.subject oxygen eng
dc.subject destruction eng
dc.subject molecules eng
dc.subject contact eng
dc.subject.ddc 530 | Physik ger
dc.subject.ddc 540 | Chemie ger
dc.title In situ ATR-FTIR study of H2O and D2O adsorption on TiO2 under UV irradiation eng
dc.type article
dc.type Text
dc.relation.essn 1463-9084
dc.relation.issn 1463-9076
dc.bibliographicCitation.issue 35
dc.bibliographicCitation.volume 17
dc.bibliographicCitation.firstPage 22940
dc.bibliographicCitation.lastPage 22946
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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