| 壳聚糖/Pb(Ⅱ)模板壳聚糖膜与Pb(Ⅱ)螯合反应的动力学及机理探讨 |
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| 引用本文： | 丁纯梅,宋庆平,孔 霞,吴大荣,徐阳阳,乔永波.壳聚糖/Pb(Ⅱ)模板壳聚糖膜与Pb(Ⅱ)螯合反应的动力学及机理探讨[J].无机化学学报,2004,20(6):711-714. |
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| 作者姓名： | 丁纯梅 宋庆平 孔 霞 吴大荣 徐阳阳 乔永波 |
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| 作者单位： | 安徽工程科技学院生化系,芜湖,241000 |
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| 基金项目： | 安徽省教育厅自然科学基金资助项目(No.2003kj008zd) |
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| 摘 要： | Chitosan and chitosan membranes with Pb(Ⅱ) ion as template were studied. The adsorption isotherms were correlated by dc/dt=-kcn at the temperature of 30 ℃, 35 ℃, 40 ℃, 45 ℃, 50 ℃. By means of linear correlation, the shapes of the isotherm curves were similar to the kinetic function of 2/c1/2=-kt and the apparent activation energy for with chitosan(123.8 kJ·moL-1) was larger than that of membrane with Pb(Ⅱ) ion(92.3kJ·moL-1). The chitosan membrane with Pb(Ⅱ) ion template was better “memory” function. The adsorption mechanism of chitosan with Pb(Ⅱ) was studied by IR and XPS. The results indicated that the nitrogen in -NH2 and the oxygen in C3-OH of chitosan were coordination atoms.
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| 关 键 词： | 壳聚糖膜 模板螯合 铅离子 动力学 |
| 修稿时间： | 2003年11月18 |
Studies on Kinetics and Mechanism of Chelating Reaction between Chitosan,Chitosan Membrane with Pb(Ⅱ) Ion Template and Pb(Ⅱ) |
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| DING Chun-Mei,SONG Qing-Ping,KONG Xi,WU Da-Rong,XU Yang-Yang and QIAO Yong-Bo.Studies on Kinetics and Mechanism of Chelating Reaction between Chitosan,Chitosan Membrane with Pb(Ⅱ) Ion Template and Pb(Ⅱ)[J].Chinese Journal of Inorganic Chemistry,2004,20(6):711-714. |
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| Authors: | DING Chun-Mei SONG Qing-Ping KONG Xi WU Da-Rong XU Yang-Yang and QIAO Yong-Bo |
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| Institution: | Dept. of Bioc., Engn. Anhui University of Science and Technology, Wuhu 241000,Dept. of Bioc., Engn. Anhui University of Science and Technology, Wuhu 241000,Dept. of Bioc., Engn. Anhui University of Science and Technology, Wuhu 241000,Dept. of Bioc., Engn. Anhui University of Science and Technology, Wuhu 241000,Dept. of Bioc., Engn. Anhui University of Science and Technology, Wuhu 241000 and Dept. of Bioc., Engn. Anhui University of Science and Technology, Wuhu 241000 |
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