AN INVESTIGATION ON TIO2-ASSISTED PHOTOOXIDATION OF THYMINE

Authors
DHANANJEYAN MR ANNAPOORANI R LAKSHMI S RENGANATHAN R
Citation
Mr. Dhananjeyan et al., AN INVESTIGATION ON TIO2-ASSISTED PHOTOOXIDATION OF THYMINE, Journal of photochemistry and photobiology. A, Chemistry, 96(1-3), 1996, pp. 187-191
Citations number
26
Categorie Soggetti
Chemistry Physical
Journal title
Journal of photochemistry and photobiology. A, Chemistry → ACNP
ISSN journal
10106030
Volume
96
Issue
1-3
Year of publication
1996
Pages
187 - 191
Database
ISI
SICI code
1010-6030(1996)96:1-3<187:AIOTPO>2.0.ZU;2-D
Abstract
The photo-oxidation (lambda(irr) = 365 nm) of the biologically importa nt compound thymine, catalysed by the semiconductor TiO2, was investig ated in an aqueous suspension. The photocatalytic process was found to conform to a Langmuir adsorption isotherm. The influence of the initi al thymine concentration, amount of TiO2 and pH on the photocatalytic rate was studied. A mechanism involving the oxidation of thymine induc ed by (OH)-O-. and H+, leading to the formation of thymine glycol, is proposed.