PHOTOCATALYTIC DEGRADATION OF WASTE-WATER POLLUTANTS - TITANIUM DIOXIDE-MEDIATED OXIDATION OF A TEXTILE DYE, ACID BLUE-40

Authors
MUNEER M PHILIP R DAS S
Citation
M. Muneer et al., PHOTOCATALYTIC DEGRADATION OF WASTE-WATER POLLUTANTS - TITANIUM DIOXIDE-MEDIATED OXIDATION OF A TEXTILE DYE, ACID BLUE-40, Research of chemical intermediates, 23(3), 1997, pp. 233-246
Citations number
44
Categorie Soggetti
Chemistry
Journal title
Research of chemical intermediates → ACNP
ISSN journal
09226168
Volume
23
Issue
3
Year of publication
1997
Pages
233 - 246
Database
ISI
SICI code
0922-6168(1997)23:3<233:PDOWP->2.0.ZU;2-S
Abstract
The photocatalyzed degradation of Acid Blue 40, a textile dye, in aque ous suspension of TiO2 has been studied by monitoring the change in dy e concentration and formation of carbon dioxide as a function of irrad iation time. Mechanistic studies suggest that in addition to the react ion of the hydroxyl and superoxide radicals with the dye, electron tra nsfer from the photoexcited TiO2 to the dye forms a significant pathwa y in the photodegradation process.