| The Effect of High-Pressure Arc Discharge Plasma on the Degradation of Chlorpyrifos |
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| 作者姓名： | 尹美强 马腾才 张家良 黄明镜 马步洲 |
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| 作者单位： | [1]The State-Key Laboratory of Material Modification by Electron, Ion and Laser Beams, Dalian University of Technology, Dalian 116023, China [2]College of Agronomy, Shanxi Agricultural University, Taigu 030801, China [3]Arid Farming Research Centre, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, China |
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| 基金项目： | supported by the National Natural Science Foundation of China （No. 5017700） and Provincial Nature Science Foundation of Shanxi （No. 20051078） |
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| 摘 要： | A study is conducted to determine the effect of a kind of high-pressure arc discharge plasma on the degradation rate and kinetic equations of chlorpyrifos in different solvents with the treated times and concentrations as variables. The degradation rate was sorted in different solvents as water, methanol, acetone and then acetoacetate. The tendencies of the degradation rates with treated time in water and methanol were optimally fitted with first-order kinetics equations while those in acetone and acetoacetate were fitted with zeroth-order kinetics equations. The difference was attributed to the stronger polarity of water and methanol. The weak correlation of the degradation rates with time was mainly because the high-temperature of the arc discharge tube and the chemically-active species generated by the discharge. The degradation half-life was extended with increase of chlorpyrifos concentration. A degradation half-life less than 3 min was achieved for chlorpyrifos in water and methanol when the initial concentration was less than 300 μg/ml.
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| 关 键 词： | 高压电弧放电等离子体 毒死蜱 农药 降解反应 动力学方程 |
| 收稿时间： | 2005-11-14 |
| 修稿时间： | 2005-11-14 |
The Effect of High-Pressure Arc Discharge Plasma on the Degradation of Chlorpyrifos |
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| YIN Meiqiang , MA Tengcai , ZHANG Jialiaug , HUANG Mingjing , MA Buzhou.The Effect of High-Pressure Arc Discharge Plasma on the Degradation of Chlorpyrifos[J].Plasma Science & Technology,2006,8(6):727-731. |
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| Authors: | YIN Meiqiang MA Tengcai ZHANG Jialiaug HUANG Mingjing MA Buzhou |
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| Abstract: | |
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| Keywords: | arc discharge plasma chlorpyrifos degradation kinetic equations |
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