Photocatalytic degradation of carbaryl in aqueous solutions containing TiO2 suspensions

被引：51
|
作者：
Pramauro, E
Prevot, AB
Vincenti, M
Brizzolesi, G
机构：
[1] Dipartimento di Chimica Analitica, Università di Torino
来源：
ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1997年 / 31卷 / 11期
关键词：
D O I：
10.1021/es970072z
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 carbaryl in aqueous TiO2 dispersions irradiated with simulated solar light was investigated. Complete mineralization of the pesticide to CO2 was observed, with the formation of nitrate and ammonium ions as nitrogen-containing end products. Various aromatic intermediates, detected during the process, were identified using HPLC and GC-MS techniques, and their kinetic evolution was also investigated. The formation of the transient compound 1,3-indandione, more persistent than carbaryl, was observed. From obtained analytical and kinetic data, a possible reaction scheme was proposed.
引用
收藏
页码：3126 / 3131
页数：6
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