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| Título: | Inorganic photocatalytic enhancement: Activated RhB photodegradation by surface modification of SnO2 nanocrystals with V2 O5-like species |
Autor: | Epifani, Mauro; Díaz, Raül; Genç, Aziz CSIC ORCID; Arbiol, Jordi CSIC ORCID CVN; Concina, Isabella | Fecha de publicación: | 2017 | Editor: | Nature Publishing Group | Citación: | Scientific Reports 7: 44763 (2017) | Resumen: | SnO nanocrystals were prepared by precipitation in dodecylamine at 100 °C, then they were reacted with vanadium chloromethoxide in oleic acid at 250 °C. The resulting materials were heat-treated at various temperatures up to 650 °C for thermal stabilization, chemical purification and for studying the overall structural transformations. From the crossed use of various characterization techniques, it emerged that the as-prepared materials were constituted by cassiterite SnO nanocrystals with a surface modified by isolated V(IV) oxide species. After heat-treatment at 400 °C, the SnO nanocrystals were wrapped by layers composed of vanadium oxide (IV-V mixed oxidation state) and carbon residuals. After heating at 500 °C, only SnO cassiterite nanocrystals were obtained, with a mean size of 2.8 nm and wrapped by only V O-like species. The samples heat-treated at 500 °C were tested as RhB photodegradation catalysts. At 10 M concentration, all RhB was degraded within 1 h of reaction, at a much faster rate than all pure SnO materials reported until now. | Descripción: | et al. | Versión del editor: | https://dx.doi.org/10.1038/srep44763 | URI: | http://hdl.handle.net/10261/160174 | DOI: | 10.1038/srep44763 | Identificadores: | doi: 10.1038/srep44763 e-issn: 2045-2322 |
| Aparece en las colecciones: | (CIN2) Artículos |
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