| 灭多威的光催化降解动力学研究 |
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| 引用本文： | 张曼平,战闰,夏宗凤,Gary Low. 灭多威的光催化降解动力学研究[J]. 高等学校化学学报, 1998, 19(9): 1475-1478 |
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| 作者姓名： | 张曼平 战闰 夏宗凤 Gary Low |
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| 作者单位： | 1. 青岛海洋大学化学化工学院,青岛,266003
2. 澳大利亚联邦科学与工业研究组织煤炭与能源技术研究所,PMB 7,Bangor,NSW 2234,澳大利亚 |
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| 摘 要： | 研究了农药灭多威在ＴｉＯ２光催化下的降解产物，反应动力学及影响降解速度的因素，灭多威在ＴｉＯ２催化下１０ｍｉｎ内可被完全转换为无机物而失去毒害作用，ＩＲ研究表明，灭多威的分解产物ＮＨ＾＋４，ＳＯ＾２－４和ＣＯ２，其分争过程中准一级反应，除铜和氯离子体低浓度时有促进作用，而高浓度为阻碍作用外，大部分阴，阳离子对降解均有不利影响。
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| 关 键 词： | 灭多威 光催化 降解 动力学 氨基甲酸酯 农药 |
A Kinetic Study on the Photocatalytic Degradation of Methomyl |
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| ZHANG Man-Ping,ZHAM Run,XINA Zong-Feng,Gary Low. A Kinetic Study on the Photocatalytic Degradation of Methomyl[J]. Chemical Research In Chinese Universities, 1998, 19(9): 1475-1478 |
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| Authors: | ZHANG Man-Ping ZHAM Run XINA Zong-Feng Gary Low |
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| Affiliation: | ZHANG Man Ping *,ZHAN Run,XIA Zong Feng |
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| Abstract: | The photocatalytic degradation of a wisely used pesticidemethomyl was studied in this paper. The degradation was catalyzed by titanium dioxide. The products, kinetics and factors that affect the rate of degradation was discussed. Methymol can be photooxided into inorganic materials in 10 minutes under the catalysis of titanium dioxide. FTIR study shows that the products are NH + 4, SO 2- 4 and CO 2. The degradation is first order reaction and the kinetic reaction curve was modeled. Some cations and anions can affect the reaction rate. Most ions retard the rate but Cu 2 + and Cl - at low concentrations stimulate the reaction. |
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| Keywords: | Methymol Photocatalytic degradation Kinetic study |
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