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

被引：111

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.

引用

页码：109 / 116

页数：8

共 32 条

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