| 羧甲基壳聚糖对稀土离子吸附性能的研究 |
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| 引用本文： | 于昆,滕文锋,牛奔,姜宝娜.羧甲基壳聚糖对稀土离子吸附性能的研究[J].化学试剂,2009,31(3). |
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| 作者姓名： | 于昆 滕文锋 牛奔 姜宝娜 |
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| 作者单位： | 1. 大连医科大学,检验医学院,辽宁,大连,116044
2. 大连医科大学,科技处,辽宁,大连,116044 |
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| 摘 要： | 以壳聚糖为原料,在碱性条件下合成了标题化合物,考察了其对稀土离子La3+、Nd3+、Sm3+的吸附性能.讨论了时间、溶液的酸度、初始离子浓度、羧甲基取代度对吸附性能的影响.发现羧甲基壳聚糖对稀土离子有较强的吸附性,吸附性满足Langmuir等温式.
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| 关 键 词： | 稀土离子 羧甲基壳聚糖 吸附 |
Capacity of carboxymethyl chitosan on adsorption of rare earth metal ions |
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| YU Kun,TENG Wen-feng,NIU Ben,JIANG Bao-na.Capacity of carboxymethyl chitosan on adsorption of rare earth metal ions[J].Chemical Reagents,2009,31(3). |
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| Authors: | YU Kun TENG Wen-feng NIU Ben JIANG Bao-na |
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| Affiliation: | Dalian Medical University a.The Inspection Medical College;b.Science and Technology Office;Dalian 116044;China |
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| Abstract: | Carboxymethyl chitosan was prepared under an alkaline condition using chitosan as the starting material.The effects of various factors such as the reaction time,the pH value,the degree of substitution by carboxymethyl groups,and the liquid concentration on the behavior for adsorption of La3+,Nd3+ and Sm3+ ions were investigated.It was found that the capacity of carboxymethyl chitosan for adsorption of La3+,Nd3+ and Sm3+ ions was quite good,with its adsorption behavior coinciding with the Langmuir adsorption... |
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| Keywords: | rare earth ion carboxymethyl chitosan adsorption |
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