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http://hdl.handle.net/10662/20397
| Títulos: | Influence of structural properties on the activity of WO3 catalysts for visible light photocatalytic ozonation |
| Autores/as: | Rey Barroso, Ana Mena Rubio, Estefanía Chávez Águedo, Ana María Beltrán Novillo, Fernando Juan Medina Cabello, Francesc |
| Palabras clave: | Ozonización fotocatalítica;Photocatalytic ozonation;Trióxido de wolframio;Tungsten trioxide;Luz visible;Visible light;Estructura cristalina;Crystalline structure |
| Fecha de publicación: | 2015-04 |
| Editor/a: | Elsevier |
| Resumen: | This work is focused on the use of WO3 catalysts with different structural properties for photocatalytic ozonation using visible light as radiation source. WO3 catalysts were prepared by thermodecomposition of tungstite (H2O·WO3) at 300–450°C and different calcination time. Photocatalysts were characterized by means of TGA-DTA, XRD, N2 adsorption-desorption isotherms, pHPZC, XPS and DR-UV–vis spectroscopy. Photocatalytic ozonation under visible light radiation with the catalyst calcined 5min at 450°C gave place to complete removal of ibuprofen in less than 20min with 87% TOC removal at 120min. This catalyst gave place to a complete removal of a mixture of ten emerging contaminants in a municipal wastewater in less than 60min with 40% mineralization at 120min. The highest catalytic activity of this material is due to the formation of monoclinic structure of WO3. |
| URI: | http://hdl.handle.net/10662/20397 |
| ISSN: | 0009-2509 |
| DOI: | 10.1016/j.ces.2014.12.016 |
| Colección: | DIQQF - Artículos |
Archivos
| Archivo | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| Postprint_CES_Rey-2015.pdf | Rey_CES_2015 | 774,73 kB | Adobe PDF | Descargar |
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