Degradation of air contaminants through the use of photoassisted heterogeneous catalysis: CF3COCl studied as an HCFC derivative

Authors
Zanini, GP Arguello, GA
Citation
Gp. Zanini et Ga. Arguello, Degradation of air contaminants through the use of photoassisted heterogeneous catalysis: CF3COCl studied as an HCFC derivative, J MOL CAT A, 159(2), 2000, pp. 347-351
Citations number
35
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN journal
13811169 → ACNP
Volume
159
Issue
2
Year of publication
2000
Pages
347 - 351
Database
ISI
SICI code
1381-1169(20001002)159:2<347:DOACTT>2.0.ZU;2-P
Abstract
CF3COCl is effectively photooxydized when a gaseous sample interacts with a n illuminated TiO2 covered surface. The oxidation occurs irrespective of th e presence of O-2. The main products are CO2 and CF2O. It was observed that a poisoning of the catalyst occurred after successive runs and a partial r ecovery when ambient air entered the cell, thus, pointing to water as the r esponsible for the recovery. (C) 2000 Elsevier Science B.V. All rights rese rved.