安徽农业大学学报2012，Vol.39Issue(1)：102-106,5.DOI:34-1162/S.20111226.1618.006
腐霉利在水溶液中的光化学降解研究
Photochemical degradation of procymidone in aqueous solution
李娟 1花日茂 2艾琼1
作者信息
- 1. 安徽农业大学理学院,合肥230036
- 2. 安徽省农产品安全重点实验室,合肥230036
- 折叠
摘要
Abstract
The aim of this paper is to investigate the photochemical degradation of procymidone. The influ ences of 3 light sources, 3 initial concentrations, pH, nitrate and H2O2 on the photodegradation of procymidone in water were studied. The results showed that the photochemical degradation of procymidone in water followed the first order reaction. The photolytic rate of procymidone under UV lamp was about two times of that under high-pressure mercury lamp, and its half-life was 43.6 min under high-pressure mercury lamp and 28.2 min under UV lamp. Using high-pressure mercury lamp as light source, the photolytic rate of procymidone was negatively correlated with its initial concentration when it was at the range of 2 mg·L-1 to 8 mg-L"1. And the photolysis rate constant decreased with the increasing of solution pH. Nitrate had quenching effect on photolysis of procymidone in aqueous solution under HPLC (high performance liquid chromatography). And H2O2 had photosensitization on the degradation of procymidone.关键词
腐霉利/光解/光猝灭效应/光敏化效应Key words
procymidone/ photodegradation/ photoextinction effect/ photosensitization effect分类
资源环境引用本文复制引用
李娟,花日茂,艾琼..腐霉利在水溶液中的光化学降解研究[J].安徽农业大学学报,2012,39(1):102-106,5.
