Adsorption and photooxidation of formamide on powdered TiO2

Authors
Wu, WC Liao, LF Chuang, CC Lin, JL
Citation
Wc. Wu et al., Adsorption and photooxidation of formamide on powdered TiO2, J CATALYSIS, 195(2), 2000, pp. 416-419
Citations number
30
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
JOURNAL OF CATALYSIS
ISSN journal
00219517 → ACNP
Volume
195
Issue
2
Year of publication
2000
Pages
416 - 419
Database
ISI
SICI code
0021-9517(20001025)195:2<416:AAPOFO>2.0.ZU;2-I
Abstract
Adsorption and photooxidation of formamide on TiO2 have been studied by Fou rier-transformed infrared spectroscopy. Formamide is adsorbed with intact m olecular form (HCONH2(a)) and dissociative form (eta (2)(N,O)-HCONH) on the surface at 35 degreesC. They are subject to decomposition upon UV illumina tion in O-2. Adsorbed isocyanate (NCO) and formate (HCOO) and gaseous CO2 a nd N2O are formed-in the photooxidation. CO2 formation mainly results from NCO(a) photodecomposition. (C) 2000 Academic Press.