A facile Shape-Controlled Synthesis of highly photoactive Fluorine containing TiO2 nanosheets with high {001} facet exposure
Surface fluorinated TiO2 materials with high {001} facet exposure were prepared by a simple and high yield preparation procedure. Faceted/fluorinated samples showed a high photocatalytic performance not only in oxidation processes, tested inphenol and Methyl Orange degradation, but also in a reducti...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2018 |
| País: | España |
| Recursos: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/79135 |
| Acesso em linha: | https://hdl.handle.net/11441/79135 https://doi.org/10.1007/s10853-017-1515-6 |
| Access Level: | acceso abierto |
| Palavra-chave: | {001} facet Fluorination F-TiO2 Phenol Methyl Orange Cr(VI) |
| Resumo: | Surface fluorinated TiO2 materials with high {001} facet exposure were prepared by a simple and high yield preparation procedure. Faceted/fluorinated samples showed a high photocatalytic performance not only in oxidation processes, tested inphenol and Methyl Orange degradation, but also in a reduction process as Cr(VI) photoreduction. Reaction rates for these materials greatly exceeded the ones obtained for materials prepared without Fluorine addition and for commercial TiO2 Degussa (Evonik) P25 used as reference photocatalyst. A broad characterisation of the samples allowed us to estimate the percentages of different facets and the amount and form in which the fluorine is found on the surfaces. Good photocatalytic behavior can be ascribed to both high {001} facet exposure and adsorbed fluorine on the photocatalysts surfaces |
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