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Campo DC | Valor | Lengua/Idioma |
---|---|---|
dc.contributor.author | GLORIA DEL ANGEL | es_MX |
dc.contributor.author | JUAN MANUEL PADILLA FLORES | es_MX |
dc.date.accessioned | 2018-06-28T11:00:02Z | - |
dc.date.available | 2018-05-22T17:56:49Z | - |
dc.date.issued | 2014-12-23 | - |
dc.identifier.uri | http://reini.utcv.edu.mx/handle/123456789/152 | - |
dc.description | Keywords: TiO2–SnO2Rietveld refinementSol–gel synthesisSemiconductor2,4-D photodegradation (https://doi.org/10.1016/j.jallcom.2014.12.065) | es_MX |
dc.description.abstract | "TiO 2 and Sn-doped TiO 2 materials were prepared by sol–gel method using titanium and tin alkoxides at different Sn concentration (0.1 mol%, 0.5 mol%, 1 mol%, 3 mol% and 5 mol%). Samples were characterized by thermo gravimetric analyzer with differential scanning calorimeter (TGA–DSC), X-ray Rietveld refine- ment, N 2 adsorption (BET), transmission electron microscopy (TEM), UV–vis spectroscopies technology and Raman spectroscopy. Only anatase phase was observed in pure TiO 2 , whereas anatase and brookite were obtained in Sn-doped TiO 2 samples. Sn dopant acts as a promoter in phase transformation of TiO 2 . The Rietveld refinements method was used to determine the relative weight of anatase and brookite, and crystallite size as a function of Sn concentration after calcination of samples at 673 K. It was also demon- strated the incorporation of Sn 4+ into the anatase TiO 2 structure. Sn 4+ inhibits the growth of TiO 2 crystal- lite size, which leads to an increase of the specific surface area of TiO 2 . From XRD analysis, the solid solution limit of Sn 4+ into TiO 2 is 5 mol% Sn. The photocatalytic activity on Sn 4+ doped TiO 2 was deter- mined for the 2,4-dichlorophenoxyacetic acid reaction. The maximum in activity was attributed to the coexistence of anatase and brookite phases in the appropriate ratio and crystallite size." | es_MX |
dc.language | eng | es_MX |
dc.relation | Rangel-Vázquez, I., Del Angel, G., Bertin, V., González, F., Vázquez-Zavala, A., Arrieta, A., … Ramírez, E. (2014). Synthesis and characterization of Sn doped TiO2 photocatalysts: Effect of Sn concentration on the textural properties and on the photocatalytic degradation of 2,4-dichlorophenoxyacetic acid. Journal of Alloys and Compounds, 643. https://doi.org/10.1016/j.jallcom.2014.12.065 | es_MX |
dc.rights | http://creativecommons.org/licenses/by/4.0 | es_MX |
dc.source | Journal of Alloys and Compounds Volume 643, Supplement 1, (ISSN 0925-8388) | es_MX |
dc.subject | Nanotecnología | es_MX |
dc.title | Synthesis and characterization of Sn doped TiO2 photocatalysts: Effect of Sn concentration on the textural properties and on the photocatalytic degradation of 2,4-dichlorophenoxyacetic acid | es_MX |
dc.type | info:eu-repo/semantics/article | es_MX |
dc.audience | generalPublic | es_MX |
dc.creator.type | info:eu-repo/dai/mx/cvu/ | es_MX |
dc.rights.access | info:eu-repo/semantics/openAccess | es_MX |
dc.author | ARMANDO VAZQUEZ ZAVALA*info:eu-repo/dai/mx/cvu/*4315 | es_MX |
dc.author | JUAN MANUEL PADILLA FLORES*info:eu-repo/dai/mx/cvu/*38318 | es_MX |
dc.area | info:eu-repo/classification/cti/2 | es_MX |
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