Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/53582
Title: Effect of deposition of silver on structural characteristics and photoactivity of TiO2-based photocatalysts
Authors: Pulido Melián, Elisenda 
González Díaz, Oscar Manuel 
Doña Rodríguez, José Miguel 
Colón, G.
Navío, J. A.
Macías, M.
Pérez Peña, Jesús 
UNESCO Clasification: 221001 Catálisis
Keywords: TiO2
Silver
Impregnation
Photodeposition
Photocatalysis, et al
Issue Date: 2012
Publisher: 0926-3373
Project: Modificación y Optimización de Catalizadores Basados en Materiales Altamente Fotoactivos Para Procesos Fotocatalíticos en Fase Acuosa y Gaseosa. 
Journal: Applied Catalysis B: Environmental 
Abstract: 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
Source: Applied Catalysis B: Environmental [ISSN 0926-3373], v. 127, p. 112-120
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