| 稻瘟酰胺在水溶液中的光解研究 |
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| 引用本文： | 邬立伍,李学德,邹广迅,花日茂,唐俊.稻瘟酰胺在水溶液中的光解研究[J].安徽农学通报,2009,15(13):68-70. |
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| 作者姓名： | 邬立伍 李学德 邹广迅 花日茂 唐俊 |
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| 作者单位： | 安徽农业大学资源与环境学院,安徽省农产品安全重点实验室,安徽合肥,230036;安徽农业大学资源与环境学院,安徽省农产品安全重点实验室,安徽合肥,230036;安徽农业大学资源与环境学院,安徽省农产品安全重点实验室,安徽合肥,230036;安徽农业大学资源与环境学院,安徽省农产品安全重点实验室,安徽合肥,230036;安徽农业大学资源与环境学院,安徽省农产品安全重点实验室,安徽合肥,230036 |
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| 摘 要： | 该文研究了稻瘟酰胺在高压汞灯和紫外灯下的光解动力学,并以高压汞灯为光源,研究了稻瘟酰胺初始浓度、溶液pH、以及硝酸盐、色素等共存污染物对稻瘟酰胺光化学降解的影响。结果表明：在高压汞灯和紫外灯照射下,稻瘟酰胺在水溶液中的光解符合一级动力学反应。稻瘟酰胺在高压汞灯下的光解速率明显比紫外灯下快,其光解半衰期分别为144.4min和239.0min;随着稻瘟酰胺初始浓度的增大,其光解速率逐渐减小;随着溶液pH的增大,稻瘟酰胺的光解速度加快;硝酸盐、甲基橙、亚甲基蓝等共存污染物对稻瘟酰胺的光解均有不同程度的光猝灭效应。
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| 关 键 词： | 稻瘟酰胺 光解 不同光源 影响因素 |
Study on Photodegradation of Fenoxanil in Aqueous Solution |
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| Wu Liwu et al..Study on Photodegradation of Fenoxanil in Aqueous Solution[J].Auhui Agricultural Science Bulletin,2009,15(13):68-70. |
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| Authors: | Wu Liwu |
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| Institution: | School of Environment and Resources;Anhui Agricultural University;Key Lab of Agro-food Safety of Anhui Province;Hefei 230036;China |
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| Abstract: | The photolysis of fenoxanil in aqueous solution under high pressure mercury lamp(HPML) and UV lamp was studied,and the effects of initial concentration,pH,nitrate and pigments on the photodegradation of fenoxanil in water were also examined.The results showed that the photochemical degradation of fenoxanil in water followed the first order reaction.The photolysis rate constant of fenoxanil under HPML was higher than UV,and half-life of photolysis was144.4min and 239.0min,respectively.The photolysis rate con... |
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| Keywords: | Fenoxanil Photodegradation Different light sources Effect factors |
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