THE INFLUENCE OF DISSOLVED METAL-IONS ON THE PHOTOCATALYTIC DEGRADATION OF PHENOL IN AQUEOUS TIO2 SUSPENSIONS

Authors
BREZOVA V BLAZKOVA A BOROSOVA E CEPPAN M FIALA R
Citation
V. Brezova et al., THE INFLUENCE OF DISSOLVED METAL-IONS ON THE PHOTOCATALYTIC DEGRADATION OF PHENOL IN AQUEOUS TIO2 SUSPENSIONS, Journal of molecular catalysis. A, Chemical, 98(2), 1995, pp. 109-116
Citations number
32
Categorie Soggetti
Chemistry Physical
Journal title
Journal of molecular catalysis. A, Chemical → ACNP
ISSN journal
13811169
Volume
98
Issue
2
Year of publication
1995
Pages
109 - 116
Database
ISI
SICI code
1381-1169(1995)98:2<109:TIODMO>2.0.ZU;2-7
Abstract
The photocatalytic degradation of phenol was investigated in the oxyge n-saturated titanium dioxide suspensions in the presence of dissolved metal ions Ca2+, Mg2+, Zn2+, Ni2+, Mn2+, Co2+, Cu2+, Cr3+ and Fe3+ in the concentration range 0.28-1.1 mM. The most photoactive systems for phenol degradation were found in the presence of ferric ions, while th e addition of Cr3+ strongly inhibited the photocatalytic decomposition of phenol. The role of dissolved metal ions in the photocatalytic pro cesses on TiO2 surface is discussed.