Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/51108
Title: FTIR study of photocatalytic degradation of 2-propanol in gas phase with different TiO2 catalysts
Authors: Araña, J. 
Alonso, A. Peña
Rodríguez, J. M.Doña 
Colón, G.
Navío, J. A.
Peña, J. Pérez 
UNESCO Clasification: 221001 Catálisis
Keywords: TiO2
Photocatalysis
Gas phase
2-propanol and FTIR
Issue Date: 2009
Publisher: 0926-3373
Project: Contratacion de Nuevo Personal Investigador Por Centros de Investigacion Cientifica y Desarrollo Tecnologico 2003 (Programa Ramon y Cajal) 
Journal: Applied Catalysis B: Environmental 
Abstract: The photocatalytic efficiency of different TiO2 catalysts in the degradation of 2-propanol in gas phase has been studied. The obtained efficiencies have been compared considering the distribution of rutile–anatase phases, surface area, particle size, distribution of surface hydroxyl groups and Brönsted or Lewis acid centres. The catalysts used were Degussa-P25 (TiO2-P25), Hombikat, Millennium, Kemira and s/g-TiO2, a catalyst prepared by a sol–gel method. The best photocatalytic behaviours have been obtained with those catalysts with higher surface area and the presence of only anatase phase (Hombikat and Millennium). A progressive deactivation of TiO2-P25 and s/g-TiO2 has been observed during the photocatalytic process. FTIR studies indicated that degradation mechanisms depended on the catalyst employed. Deactivation processes observed in TiO2-P25 have been correlated with the formation of carboxylates.
URI: http://hdl.handle.net/10553/51108
ISSN: 0926-3373
DOI: 10.1016/j.apcatb.2008.11.027
Source: Applied Catalysis B-Environmental [ISSN 0926-3373], v. 89 (1-2), p. 204-213
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