CONTINUOUS-FLOW PHOTOCATALYTIC DEGRADATION OF CARBARYL IN AQUEOUS-MEDIA

被引：14
|
作者：
PERISCARDELLS, E [1 ]
TEROL, J [1 ]
MAURI, AR [1 ]
DELAGUARDIA, M [1 ]
机构：
[1] UNIV TORINO,DIPARTIMENTO CHIM ANALIT,I-10133 TURIN,ITALY
来源：
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES | 1993年 / 28卷 / 04期
关键词：
PHOTOCATALYTIC DEGRADATION; POLYTETRAFLUOROETHYLENE PHOTOCHEMICAL REACTOR; TITANIUM DIOXIDE; FIA; CARBARYL;
D O I：
10.1080/03601239309372834
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, present in aqueous solutions containing suspended TiO2 particles, has been studied in a continuous flow system, using a polytetrafluoroethylene photochemical reactor, equipped with an UV lamp. In order to optimize the process the effect of pH, catalyst and pesticide concentration, and irradiation time have been evaluated. Working in the best conditions, the measured half-life of carbaryl was 26 seconds. More than 99% of carbaryl present in solutions containing 0.2 mgL-1 of pesticide decomposes after less than 1 minute irradiation.
引用
收藏
页码：431 / 445
页数：15
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