| 交联羧甲基壳聚糖树脂对稀土离子吸附性能研究 |
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| 引用本文： | 李继平,韩吉慧,贾丽娜. 交联羧甲基壳聚糖树脂对稀土离子吸附性能研究[J]. 辽宁化工, 2003, 32(9): 369-371 |
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| 作者姓名： | 李继平 韩吉慧 贾丽娜 |
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| 作者单位： | 1. 辽宁师范大学实验中心,辽宁,大连,116029
2. 辽宁师范大学化学系,辽宁,大连,116029 |
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| 摘 要： | 以羧甲基壳聚糖为原料，经戊二醛交联制备阳离子型树脂，考察了其对稀土离子La^3 、Nd^3 、Sm^3 、Lu^3 吸附性能。探讨了溶液的酸度、体系温度、初始离子浓度及离子强度对该树脂吸附性能的影响；发现羧甲基壳聚糖经戊二醛交联制成的树脂对稀土离子有较强的吸附性，最高吸附率可达99％以上，并且具有良好的重复使用性；其吸附性为满足Langmuir或Freumdilich等温式。
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| 关 键 词： | 交联羧甲基壳聚糖树脂 稀土离子 吸附性能 羧甲基壳聚糖 原料 戊二醛 |
| 文章编号： | 1004-0935(2003)09-0369-03 |
Rare Earth Metal Ion Adsorption Capacity on Regenerated Carboxymethyl Chitosan Resin |
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| LI Ji-ping,HAN Ji-hui,JIA Li-na. Rare Earth Metal Ion Adsorption Capacity on Regenerated Carboxymethyl Chitosan Resin[J]. Liaoning Chemical Industry, 2003, 32(9): 369-371 |
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| Authors: | LI Ji-ping HAN Ji-hui JIA Li-na |
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| Abstract: | Using carboxymethyl chitosan as raw material, glutaraldehyde as cross-linked agent,regenerated resin of carboxymethyl chitosan was prepared. The effects of various factors such as reaction time, ionic strength, PH value and concentration on the adsorption behavior for La 3+?Nd 3+?Sm 3+?Lu 3+ on the resin of cmcs were investigated. It was found that the adsorption capacity of La 3+?Nd 3+?Sm 3+?Lu 3+ ion on the resin was very good. The highest rate of adsorption reached 95 %. The resin of carboxymethyl chitosan can be used for five times with high adsorption capacity. Its adsorption behavior was coincided with the equation of Langmuir or Freudlich. |
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| Keywords: | Rare earths Carboxymethyl chitosan Adsorption |
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