Effects of selected metal ions on photodegradation of organophosphorus pesticides sensitized by humic acids

被引：68

作者：

Kamiya, M ^{[1
]}

Kameyama, K ^{[1
]}

机构：

[1] Univ Shizuoka, Grad Sch Environm Hlth Sci, Shizuoka 4228526, Japan

来源：

CHEMOSPHERE | 2001年 / 45卷 / 03期

关键词：

paramagnetic metal ions; rate retardation; pesticide photodegradation; humic acids; fluorescence quenching; radical scavenging;

D O I：

10.1016/S0045-6535(00)00573-7

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 [工学]; 0830 [环境科学与工程];

摘要：

Selected metal ions having paramagnetic property were found to exert inhibition effects on aquatic photodegradation of organophosphorus pesticides sensitized by humic acids, according to the increasing order of Cr(III) < Co(II) < Mn(II) < Cu(II). Basic factors dominating the metal-ion effects were clarified on the basis of the fluorescence quenching as well as radical scavenging abilities of metal ions complexed with humic acids. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：231 / 235

页数：5

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