| 铁、铝氧化物和土壤对苄嘧磺隆的吸附 |
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| 引用本文： | 刘永红,叶发兵,岳霞丽,董元彦. 铁、铝氧化物和土壤对苄嘧磺隆的吸附[J]. 环境化学, 2006, 25(6): 714-717 |
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| 作者姓名： | 刘永红 叶发兵 岳霞丽 董元彦 |
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| 作者单位： | 华中农业大学理学院,武汉,430070;华中农业大学理学院,武汉,430070;华中农业大学理学院,武汉,430070;华中农业大学理学院,武汉,430070 |
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| 摘 要： | 用平衡吸附法研究了苄嘧磺隆在两种土壤(广州赤红壤、湖南红壤)和两种人工合成氧化物(针铁矿、铝氧化物)中的吸附,以及pH对吸附的影响.结果表明:(1)用Langmuir,Freundlich和Temkin等温方程描述供试样品对苄嘧磺隆的吸附,其中Freundlich吸附等温方程拟合的结果较佳.在苄嘧磺隆的实验浓度范围内和一定的pH条件下,吸附苄嘧磺隆的量随其浓度的升高而增加,其顺序为:铝氧化物＞湖南红壤＞针铁矿＞广州赤红壤.(2)苄嘧磺隆在供试样品中的吸附量随溶液pH值的升高而减小.
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| 关 键 词： | 土壤 氧化物 吸附 苄嘧磺隆 |
| 收稿时间： | 2006-01-09 |
| 修稿时间： | 2006-01-09 |
ADSORPTION OF BENSULFURON-METHYL IN OXIDES AND SOILS |
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| LIU Yong-hong,YE Fa-bing,YUE Xia-li,DONG Yuan-yan. ADSORPTION OF BENSULFURON-METHYL IN OXIDES AND SOILS[J]. Environmental Chemistry, 2006, 25(6): 714-717 |
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| Authors: | LIU Yong-hong YE Fa-bing YUE Xia-li DONG Yuan-yan |
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| Affiliation: | College of Science, Huazhong Agricultural University, Wuhan, 430070, China |
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| Abstract: | A study on bensulfuron-methyl(BSM) adsorption in four samples(two soils and two oxides) and the effects of pH on the adsorption were studied using the batch equilibration technique.The results showed that the isothermal data were described with Langmuir,Freundlich,Temkin equations,but the Freundlich equation was the optimal one.Within the range of bensulfuron-methyl concentrations used in experiment,the(amount) of adsorption increased with the increase concentrations of BSM,and in some extent of pH,the amount of adsorption as followed:latosolic red soil
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| Keywords: | soils oxides adsorption bensulfuron-methyl. |
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