Use of TiO2 as catalyst in degradation induced with gamma radiation of Methylene Blue. | [Journal of Chemical Society of Pakistan • 2012]

Author(s):

1. Gabriela G Cano-Garcia: Instituto Tecnologico de Toluca, Institute Tecnologico Av. Ex-Rancho la Virgen, Metepec, Estado de Mexico, Mexico C.P. 52140.; Institute Nacional de Investigaciones Nucleares. Apartado Postal 18-1027. México, D.F. 11801 México

2. Alma Martinez-Hernandez: Instituto Tecnologico de Toluca, Institute Tecnologico Av. Ex-Rancho la Virgen, Metepec, Estado de Mexico, Mexico C.P. 52140.; Institute Nacional de Investigaciones Nucleares. Apartado Postal 18-1027. México, D.F. 11801 México

3. Jaime Jimenez-Becerril: Institute Nacional de Investigaciones Nucleares. Apartado Postal 18-1027. México, D.F. 11801 México

Abstract:

Heterogeneous radiocatalysis is a catalytic process promoted by the direct adsorption of high radiant energy capable of activating a semiconductor such as TiO2, which generates free radicals very reactive at the surface that allow oxidation-reduction reactions with adsorbed species, breaking some molecular bonds and reducing or oxidizing them less complex species. We irradiated methylene blue with 66Co gamma rays and added of TiO2 during irradiation with different doses of gamma radiation, measuring the remaining methylene blue concentration by spectrophotometry UV. The degradation of the organic compound was enhanced when doses increased and with the addition of semiconductors of up to 1g of catalyst per liter of suspension.

Page(s): 533-535

DOI: DOI not available

Published: Journal: Journal of Chemical Society of Pakistan, Volume: 34, Issue: 3, Year: 2012

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