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Utilization of Solar Energy and Atmospheric Oxygen in the Photodregradation of Diesel in Water by Cu/TiO2 Catalysts

Published online by Cambridge University Press:  01 February 2011

Ma. Manriquez ,
Grisel Corro  and
J. Gonzalo Hernandez
Ma. Manriquez*
Affiliation:
Instituto Politécnico Nacional. Depto. Termodinámica, ESFM IPN, Av. IPN s/n, Edif. 7, 07730 México D.F., Mexico
Grisel Corro
Affiliation:
Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla.4 sur 104, Puebla, Puebla 72000, Mexico
J. Gonzalo Hernandez
Affiliation:
Instituto Mexicano del Petróleo, Av. Eje Central No 152, Mexico 0700, D.F. Mexico
*
*To whom correspondence should be addressed. E-mail: marymanriquez@yahoo.com.mx
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Abstract

Photocatalytic destruction of the water soluble diesel fraction (WSF) was performed using Cu/TiO2 catalysts. Inexpensive and clean solar light and atmospheric oxygen were used as the energy source and oxidant, respectively. We investigated the effect of Cu species on the formation of a doping energy level between the conduction and valence band in TiO2. Photocatalytic reactions were investigated by monitoring the evolution of WSF as a function oftime of solar irradiation by UV-vis and FTIR spectroscopic techniques. The photocatalytic process in the presence of 5%Cu/TiO2 catalyst, is shown to be quantitatively efficient in the destruction of the water-soluble diesel fraction. The total destruction of water-soluble compounds originating from diesel residues indicates that photocatalysis can be employed for WSF treatment.

Keywords

DieselwaterCu/TiO2 photocatalystsphoto degradation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1279: New Catalytic Materials , 2010 , 44
Copyright
Copyright © Materials Research Society 2010

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