Citation
Mr. Dhananjeyan et al., An investigation of the effects of Cu2+ and heat treatment on TiO2 photooxidation of certain pyrimidines, J MOL CAT A, 158(2), 2000, pp. 577-582
Citations number
19
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN journal
13811169
→ ACNP
Volume
158
Issue
2
Year of publication
2000
Pages
577 - 582
Database
ISI
SICI code
1381-1169(20000915)158:2<577:AIOTEO>2.0.ZU;2-Q
Abstract
An unusual observation of rate retarding influence of Cu2+ On the TiO2-medi
ated photooxidation of uracil, thymine and 6-methyluracil has been made. Th
is is explained on the basis of a short-circuiting redox role of Cu2+ in th
e photoprocess. Increase of calcination temperature of the TiO2 sample resu
lted in a decrease of its photocatalytic activity and also the extent of it
s UV absorption. The former effect is attributed to a decreased extent of T
iO2 surface bound peroxo species while the latter is attributed to a decrea
se in the surface area of TiO2. (C) 2000 Elsevier Science B.V. All rights r
eserved.