Photocatalyzed oxidation of alcohols and organochlorides in the presence of native TiO2 and metallized TiO2 suspensions. Part (II): Photocatalytic mechanisms

Authors
Chen, J Ollis, DF Rulkens, WH Bruning, H
Citation
J. Chen et al., Photocatalyzed oxidation of alcohols and organochlorides in the presence of native TiO2 and metallized TiO2 suspensions. Part (II): Photocatalytic mechanisms, WATER RES, 33(3), 1999, pp. 669-676
Citations number
25
Categorie Soggetti
Environment/Ecology
Journal title
WATER RESEARCH
ISSN journal
00431354 → ACNP
Volume
33
Issue
3
Year of publication
1999
Pages
669 - 676
Database
ISI
SICI code
0043-1354(199902)33:3<669:POOAAO>2.0.ZU;2-9
Abstract
A detailed description of various mechanisms for the photocatalytic oxidati on of alcohols and organochlorides in an aerated or a deaerated system is g iven. This description includes mechanisms of surface reactions and radical reactions based on our experimental data presented. A surface mechanism of direct oxidation of substrates in photocatalyst surfaces is proposed as a favorable pathway for photocatalytic oxidations of methanol and ethanol, al so a possible pathway for chloroform, trichloroethylene (TCE) and dichlorop ropionic acid (DCP) in M/TiO2 aqueous slurries. (C) 1998 Elsevier Science L td. All rights reserved.