PHOTOCATALYTIC DEGRADATION OF ATRAZINE AND OTHER S-TRIAZINE HERBICIDES

被引：376

作者：

PELIZZETTI, E

MAURINO, V

MINERO, C

CARLIN, V

PRAMAURO, E

ZERBINATI, O

TOSATO, ML

机构：

[1] UNIV TURIN, DEPARTIMENTO CHIM ANALIT, I-10125 TURIN, ITALY

[2] IST SUPER SANITA, I-00161 ROME, ITALY

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1990年 / 24卷 / 10期

关键词：

Herbicides;

D O I：

10.1021/es00080a016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The photocatalytic degradation of s-triazine herbicides (atrazine, simazine, trietazine, prometon, and prometryn) has been investigated by using particulate TiO2 as photocatalyst under simulated solar light. The herbicides are rapidly degraded. Traces of atrazine (at ppb level) are decomposed in very short times to less than 0.1 ppb, but full mineralization of the herbicides is not observed. Degradation products have been monitored through liquid, gas, and ion chromatography, and the overall degradation process has been monitored through dissolved and particulate organic carbon measurements. Several intermediates have been identified, and cyanuric acid has been recognized as the final product of the degradation process for all the investigated herbicides. A proposal mechanism of the process is presented. © 1990, American Chemical Society. All rights reserved.

引用

页码：1559 / 1565

页数：7

共 59 条

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