Phenol photonitration upon UV irradiation of nitrite in aqueous solution II: effects of pH and TiO2

Authors
Vione, D Maurino, V Minero, C Pelizzetti, E
Citation
D. Vione et al., Phenol photonitration upon UV irradiation of nitrite in aqueous solution II: effects of pH and TiO2, CHEMOSPHERE, 45(6-7), 2001, pp. 903-910
Citations number
24
Categorie Soggetti
Environment/Ecology
Journal title
CHEMOSPHERE
ISSN journal
00456535 → ACNP
Volume
45
Issue
6-7
Year of publication
2001
Pages
903 - 910
Database
ISI
SICI code
0045-6535(200111)45:6-7<903:PPUUIO>2.0.ZU;2-L
Abstract
Phenol photonitration and photo nitrosation were studied both in homogeneou s and in heterogeneous phase in the presence of TiO2 particles. The effect of pH as well as of the semiconductor particles on the kinetics and product s of the reaction was observed. Formation of nitrophenols is enhanced at ac idic pH, due to thermal processes initiated by nitrous acid, as well as in the presence of TiO2, due to the photocatalytic oxidation of nitrite. (C) 2 001 Elsevier Science Ltd. All rights reserved.