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dc.creatorBarranco Quero, Ángeles
dc.creatorSánchez Valencia, Juan Ramónes
dc.creatorGámez, Franciscoes
dc.creatorSuárez, Belénes
dc.creatorQueirós, Carlaes
dc.date.accessioned2017-10-27T17:12:48Z
dc.date.available2017-10-27T17:12:48Z
dc.date.issued2017
dc.identifier.citationBarranco Quero, Á., Sánchez Valencia, J.R., Gámez, F., Suárez, B. y Queirós, C. (2017). Preparation and Optimization of Fluorescent Thin Films of Rosamine-SiO2/TiO2 Composites for NO2 Sensing. Materials, 10 (2), 1-15.
dc.identifier.issn1996-1944es
dc.identifier.urihttp://hdl.handle.net/11441/65509
dc.description.abstractThe incorporation of a prototypical rosamine fluorescent dye from organic solutions into transparent and microstructured columnar TiO2 and SiO2 (MO2) thin films, prepared by evaporation at glancing angles (GAPVD), was evaluated. The aggregation of the adsorbed molecules, the infiltration efficiency and the adsorption kinetics were studied by means of UV-Vis absorption and fluorescence spectroscopies. Specifically, the infiltration equilibrium as well as the kinetic of adsorption of the emitting dye has been described by a Langmuir type adsorption isotherm and a pseudosecond order kinetic model, respectively. The anchoring mechanism of the rosamine to the MO2 matrix has been revealed by specular reflectance Fourier transform infrared spectroscopy and infiltration from aqueous solutions at different pH values. Finally, the sensing performance towards NO2 gas of optimized films has been assessed by following the changes of its fluorescence intensity revealing that the so-selected device exhibited improved sensing response compared to similar hybrid films reported in the literature.es
dc.description.sponsorshipMINECO MAT2014-57652-C2-2-Res
dc.description.sponsorshipMINECO PCIN-2015-169-C02-02es
dc.formatapplication/pdfes
dc.language.isoenges
dc.publisherMDPIes
dc.relation.ispartofMaterials, 10 (2), 1-15.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectrosamine dyeses
dc.subjectporous columnar semiconductorses
dc.subjectgas sensorses
dc.titlePreparation and Optimization of Fluorescent Thin Films of Rosamine-SiO2/TiO2 Composites for NO2 Sensinges
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Química Inorgánicaes
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/MAT2014-57652-C2-2-Res
dc.relation.projectIDinfo:eu-repo/grantAgreement/MINECO/PCIN-2015-169-C02-02es
dc.relation.publisherversionhttp://dx.doi.org/ 10.3390/ma10020124es
dc.identifier.doi10.3390/ma10020124es
idus.format.extent16 p.es
dc.journaltitleMaterialses
dc.publication.volumen10es
dc.publication.issue2es
dc.publication.initialPage1es
dc.publication.endPage15es
dc.contributor.funderMinisterio de Economía y Competitividad (MINECO). España

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