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

被引：113
作者：
BREZOVA, V
BLAZKOVA, A
BOROSOVA, E
CEPPAN, M
FIALA, R
机构：
[1] Faculty of chemical Technology, Slovak Technical University, Bratislava
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 1995年 / 98卷 / 02期
关键词：
METAL IONS; OXIDATION; PHENOL; PHOTOCATALYSIS; TITANIUM DIOXIDE;
D O I：
10.1016/1381-1169(95)00013-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The photocatalytic degradation of phenol was investigated in the oxygen-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 the addition of Cr3+ strongly inhibited the photocatalytic decomposition of phenol. The role of dissolved metal ions in the photocatalytic processes on TiO2 surface is discussed.
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页码：109 / 116
页数：8
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