当前位置: 首页 > 文章 > 甲萘威在液相中的光化学降解研究 吉林农业大学学报 2013,35 (2) 83-87
Position: Home > Articles > Photochemical Degradation of Carbryl in Various Solvents Journal of Jilin Agricultural University 2013,35 (2) 83-87

甲萘威在液相中的光化学降解研究

作  者:
武霓;刘晓凤;王鸣华
单  位:
南京农业大学植物保护学院
关键词:
甲萘威;水溶液;光化学降解
摘  要:
以高压汞灯为光源,研究了甲萘威在液相中的光化学降解及影响因素。结果表明:甲萘威在不同溶剂中的光解均符合一级动力学方程。甲萘威的光解速率随初始浓度的增加而减小。在不同有机溶剂中的光解速率大小依次为正己烷>甲醇>乙腈,在碱性溶液中比中性和酸性溶液中光解快。NO3-、NO2-和SDS对甲萘威光解有一定的抑制作用,而H2O2则对甲萘威在水中的光解起到促进作用。
译  名:
Photochemical Degradation of Carbryl in Various Solvents
作  者:
WU Ni,LIU Xiao-feng,WANG Ming-huaCollege of Plant Protection,Nanjing Agricultural University,Nanjing 210095,China
关键词:
carbryl;aqueous solution;photochemical degradation
摘  要:
The photochemical degradation of carbryl in various solvents and the relevant effect factors were studied under the irradiation of high-pressure mercury lamp.The results showed that the photolysis rate of carbryl could be characterized by first-order kinetics equation.The photolysis rate of carbaryl decreased with the increase of initial concentration.The photolytic rates of carbryl in different organic solvents showed the following sequence: n-hexane> methanol> acetonitrile.The photolytic rate of carbryl in alkaline buffer solution was much greater than in acid or in neutral buffer solution.The presence of NO3-,NO2-and SDS inhibited carbryl photodegradation.The H2O2 could increase photolysis rate.

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