| Behavior of the herbicide dimepiperate with homoionic clays in aqueous solution |
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| 作者姓名： | Liu Weiping Wang Qiquan Shao Ying Ji Jing |
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| 作者单位： | Department of Chemistry，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China |
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| 摘 要： | Ｂｅｈａｖｉｏｒｏｆｔｈｅｈｅｒｂｉｃｉｄｅｄｉｍｅｐｉｐｅｒａｔｅｗｉｔｈｈｏｍｏｉｏｎｉｃｃｌａｙｓｉｎａｑｕｅｏｕｓｓｏｌｕｔｉｏｎ￥ＬｉｕＷｅｉｐｉｎｇ；ＷａｎｇＱｉｑｕａｎ；ＳｈａｏＹｉｎｇ；ＪｉＪｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＣｈｅｍｉ...
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| 关 键 词： | dimepiperate montmorillonite adsorption isotherm adsorption mechanisms. |
| 收稿时间： | 1995/5/31 0:00:00 |
Behavior of the herbicide dimepiperate with homoionic clays in aqueous solution |
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| Liu Weiping,Wang Qiquan,Shao Ying,Ji Jing.Behavior of the herbicide dimepiperate with homoionic clays in aqueous solution[J].Journal of Environmental Sciences,1996,8(4):454-459. |
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| Authors: | Liu Weiping Wang Qiquan Shao Ying Ji Jing |
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| Abstract: | The adsorption of the herbicide dimepiperate with homoionic Fe3+) ,Al3+,Cu2+ ,Ca2+ ,K+ and Na+ saturated montmorillonite in aqueous solution was investigated. The adsorption to six homoionic clays was described well by the Freundlicb equation. The adsorption capacity decreases in order to Cu2+ >Fe3+ >Al3+) >Ca2+ >K+ >Na+ clay and the same order of their acidities except for Cu2+,because Cu2+ has great catalytical ability. The kinetic of its hydrolysis was also studied. Among the six metal ions,Cu2+ clay exhibited a particular affect of catalysis. The IR results suggest that only findirig the adsorption of the hydrolytic product on Cu2+clay and dimepiperate on K+,Na+ clays, there being two compounds (dimepiperate and its hyrolytic product) adsorptions on Fe3+ and Al3+) clays. |
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| Keywords: | dimepiperate montmorillonite adsorption isotherm adsorption mechanisms |
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