Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/46323
Title: The effect of modifying TiO2 on catechol and resorcinol photocatalytic degradation
Authors: Araña, J. 
Doña Rodríguez, J. M. 
González Díaz, O. 
Herrera Melián, J. A. 
Pérez Peña, J. 
UNESCO Clasification: 330301 Tecnología de la catálisis
Keywords: Surface chemistry
Catalysts
Titanium compounds
Photochemistry
Adsorption
Issue Date: 2007
Journal: Journal of Solar Energy Engineering, Transactions of the ASME 
Abstract: The photocatalytic features of TiO2 doped with ferric oxides or mixed with activated carbon (AC-TiO2) are compared with those of the unmodified Degussa P-25 TiO2⁠. These new catalysts show specific structural features that alter catechol and resorcinol photodegradabilities, according to their chemical structures. For instance, we have observed that Fe oxides located on the TiO2 particle surface hamper these dihydroxybenzenes degradation. Likewise, AC-TiO2 catalysts have shown improved catechol photodegradability with respect to that of TiO2⁠, while that of resorcinol is not altered. These studies show that catechol and resorcinol adsorption patterns are different, i.e., they have different adsorption centres on the catalyst surface and are differently affected by photonic flux variations.
URI: http://hdl.handle.net/10553/46323
ISSN: 0199-6231
DOI: 10.1115/1.2391225
Source: Journal of Solar Energy Engineering, Transactions of the ASME [ISSN 0199-6231], v. 129 (1), p. 80-86
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