Effect of silver on the phase transition and wettability of titanium oxide films

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dc.contributor.authorMosquera, Adolfo A.
dc.contributor.authorAlbella, Jose M.
dc.contributor.authorNavarro, Violeta
dc.contributor.authorBhattacharyya, Debabrata
dc.contributor.authorEndrino, José L.
dc.date.accessioned2016-09-09T13:43:03Z
dc.date.available2016-09-09T13:43:03Z
dc.date.issued2016-08-30
dc.description.abstractThe effect of silver on the phase transition and microstructure of titanium oxide films grown by pulsed cathodic arc had been investigated by XRD, SEM and Raman spectroscopy. Following successive thermal annealing up to 1000 °C, microstructural analysis of annealed Ag-TiO2 films reveals that the incorporation of Ag nanoparticles strongly affects the transition temperature from the initial metastable amorphous phase to anatase and stable rutile phase. An increase of silver content into TiO2 matrix inhibits the amorphous to anatase phase transition, raising its temperature boundary and, simultaneously reduces the transition temperature to promote rutile structure at lower value of 600 °C. The results are interpreted in terms of the steric effects produced by agglomeration of Ag atoms into larger clusters following annealing which hinders diffusion of Ti and O ions for anatase formation and constrains the volume available for the anatase lattice, thus disrupting its structure to form rutile phase. The effect of silver on the optical and wetting properties of TiO2 was evaluated to demonstrate its improved photocatalytic performance.en_UK
dc.identifier.citationMosquera AA, Albella JM, Navarro V, et al., (2016) Effect of silver on the phase transition and wettability of titanium oxide films, Scientific Reports, Volume 6, 2016, Article number 32171en_UK
dc.identifier.cris15155153
dc.identifier.issn2045-2322
dc.identifier.urihttp://dx.doi.org/10.1038/srep32171
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10505
dc.language.isoenen_UK
dc.publisherNature Publishing Groupen_UK
dc.rightsAttribution 4.0 Internationalen_UK
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleEffect of silver on the phase transition and wettability of titanium oxide filmsen_UK
dc.typeArticleen_UK

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