Morphology and photocatalytic activity of highly oriented mixed phase titanium dioxide thin films

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dc.contributor.authorHanaor, DAHen_AU
dc.contributor.authorTriani, Gen_AU
dc.contributor.authorSorrell, CCen_AU
dc.date.accessioned2023-11-03T04:03:18Zen_AU
dc.date.available2023-11-03T04:03:18Zen_AU
dc.date.issued2011-03-15en_AU
dc.date.statistics2023-09-28en_AU
dc.description.abstractThin TiO2 films on quartz substrates were prepared by spin coating of undoped and metal-ion-doped Sol–Gel precursors. These films were characterised by Scanning Electron Microscopy, Laser Raman Microspectroscopy, X-ray Diffraction and UV–Vis Transmission. The photocatalytic performances of the films were assessed by the photo-degradation of methylene-blue in aqueous solution under UV irradiation. Films exhibited a high degree of orientation and a thermal stabilization of the anatase phase as a result of substrate effects. In the absence of dopants, the rutile phase formed as parallel bands in the anatase which broadened as the transformation progressed. TiO2 films doped or co-doped with transition metals exhibited the formation of rutile in segregated clusters at temperatures under ~ 800 °C as a result of increased levels of oxygen vacancies. Photocatalytic activity of the films synthesised in this work was low as likely a result of poor TiO2 surface contact with dye molecules in the solution. The presence of transition metal dopants appears detrimental to photocatalytic activity while the performance of mixed phase films was not observed to differ significantly from single phase material. © 2011 Elsevier B.Ven_AU
dc.identifier.citationHanaor, D. A. H., Triani, G., & Sorrell, C. C. (2011). Morphology and photocatalytic activity of highly oriented mixed phase titanium dioxide thin films. Surface and Coatings Technology, 205(12), 3658-3664. doi:10.1016/j.surfcoat.2011.01.007en_AU
dc.identifier.issn0257-8972en_AU
dc.identifier.issue12en_AU
dc.identifier.journaltitleSurface and Coatings Technologyen_AU
dc.identifier.pagination3658-3664en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15169en_AU
dc.identifier.volume205en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.relation.urihttps://doi.org/10.1016/j.surfcoat.2011.01.007en_AU
dc.subjectRutileen_AU
dc.subjectPhotocatalysisen_AU
dc.subjectThin Filmsen_AU
dc.subjectMorphologyen_AU
dc.subjectTitanium oxidesen_AU
dc.subjectQuartzen_AU
dc.subjectSubstratesen_AU
dc.subjectSol-gel processen_AU
dc.subjectScanning Electron microscopyen_AU
dc.subjectX-ray diffractionen_AU
dc.titleMorphology and photocatalytic activity of highly oriented mixed phase titanium dioxide thin filmsen_AU
dc.typeJournal Articleen_AU
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