Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/53585
Title: Influence of amine template on the photoactivity of TiO2 nanoparticles obtained by hydrothermal treatment
Authors: Colon, G.
Hidalgo, M. C.
Pulido Melián, Elisenda 
González Díaz, Oscar Manuel 
Navío, J. A. 
Doña Rodríguez, José Miguel 
UNESCO Clasification: 221001 Catálisis
Keywords: Hydrothermal
Nanoparticles
TiO2
Amine
Photoactivity
Issue Date: 2008
Publisher: 0926-3373
Project: Preparacion, Caracterizacion y Propiedades de Sistemas Fotocataliticos Altamente Reactivos Basados en Aplica<Ciones Medioambientales 
Journal: Applied Catalysis B: Environmental 
Abstract: TiO2 nanoparticles have been prepared by amine template-assisted sol-gel precipitation and further hydrothermal treatment. We have investigated the effect of different amines (hydrazine and triethylamine) in the final surface and structural properties. It has been stated that the different amounts of amine could act as an interesting template upon hydrothermal treatment. Further thermal treatment also leads to a significant improvement in the photocatalytic properties of the studied systems. Surface and morphological features notably differ from TiO2 prepared using different synthetic routes. Wide surface and structural characterization of the samples have been carried out, and correlations with precipitation pH are pointed out from this characterization. In all cases, amine template TiO2 obtained exhibit high conversion values for phenol photo-oxidation reaction. Further calcination treatment of all the studied systems clearly leads to photocatalytic conversions higher than that exhibited by TiO2 Degussa P25.
URI: http://hdl.handle.net/10553/53585
ISSN: 0926-3373
DOI: 10.1016/j.apcatb.2007.09.019
Source: Applied Catalysis B: Environmental [ISSN 0926-3373], v. 78 (1-2), p. 176-182
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