Photocatalyzed degradation of metal-EDTA complexes in TiO2 aqueous suspensions and simultaneous metal removal

被引：32

作者：

Kagaya, S ^{[1
]}

Bitoh, Y ^{[1
]}

Hasegawa, K ^{[1
]}

机构：

[1] TOYAMA UNIV, FAC ENGN, DEPT CHEM & BIOCHEM ENGN, TOYAMA 930, JAPAN

来源：

CHEMISTRY LETTERS | 1997年 / 02期

关键词：

D O I：

10.1246/cl.1997.155

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cu(II)-, Fe(III)-, and Zn(II)-EDTA complexes are degraded rapidly in aerated aqueous suspensions of TiO2 with a high-pressure mercury lamp (irradiation wavelength > ca.290 nm), accompanying a full removal of the metals. Total organic carbons (TOCs) in their solutions decrease with the irradiation time, however, TOCs remained after 5 h irradiation. Although Co(II)- and Ni(II)-EDTA complexes are degraded, the removal of their metals is slow. Mn(TI)-EDTA complex is degraded incompletely even after 5 h irradiation.

引用

页码：155 / 156

页数：2

共 9 条

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