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| Título: | Effect of deposition of silver on structural characteristics and photoactivity of TiO2-based photocatalysts | Autores/as: | Pulido Melián, Elisenda González Díaz, Oscar Manuel Doña Rodríguez, José Miguel Colón, G. Navío, J. A. Macías, M. Pérez Peña, Jesús |
Clasificación UNESCO: | 221001 Catálisis | Palabras clave: | TiO2 Silver Impregnation Photodeposition Photocatalysis, et al. |
Fecha de publicación: | 2012 | Editor/a: | 0926-3373 | Proyectos: | Modificación y Optimización de Catalizadores Basados en Materiales Altamente Fotoactivos Para Procesos Fotocatalíticos en Fase Acuosa y Gaseosa. | Publicación seriada: | Applied Catalysis B: Environmental | Resumen: | The homemade bare TiO2 photocatalyst obtained in a previous work was modified with nanosized silver particles by liquid impregnation and photodeposition methods to obtain different noble metal loadings (0.3–1 at.%). Characterization of the synthesized photocatalysts was carried out by the BET method, XPS, TEM, SEM-EDX, XRD and diffuse reflectance measurements. Photocatalytic activity of these silver-deposited TiO2 nanoparticles was tested by photocatalytic degradation of phenol as a reference model representing phenolic pollutants. The noble metal content on the TiO2 surface affected the efficiency of the photocatalytic process, and the photocatalytic activity of noble metal-modified TiO2 was considerably better than that of bare TiO2. Phenol decomposition rate was higher with TiO2 modified by the liquid impregnation method than with TiO2 modified by the photodeposition method. | URI: | http://hdl.handle.net/10553/53582 | ISSN: | 0926-3373 | DOI: | 10.1016/j.apcatb.2012.08.007 | Fuente: | Applied Catalysis B: Environmental [ISSN 0926-3373], v. 127, p. 112-120 |
| Colección: | Artículos |
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