| 杯芳烃改性壳聚糖对钕离子的吸附性能 |
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| 引用本文： | 杨宇翔,安洁,杨育兵,林海.杯芳烃改性壳聚糖对钕离子的吸附性能[J].同济大学学报(自然科学版),2012,40(1):0143-0147. |
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| 作者姓名： | 杨宇翔 安洁 杨育兵 林海 |
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| 作者单位： | 1. 华东理工大学化学与分子工程学院,上海,200237
2. 温州市颐康家居卫生用品有限责任公司,浙江温州,325400 |
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| 基金项目： | 温州市科技计划项目G20100173;吉林大学无机合成与制备化学国家重点实验室资助项目 |
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| 摘 要： | 采用杯8]、杯6]、杯4]芳烃对壳聚糖颗粒进行包覆改性,并对钕离子吸附性能进行了研究.研究发现,杯芳烃主要靠氢键与壳聚糖作用而包覆于壳聚糖表面,杯6]和杯8]芳烃包覆壳聚糖对钕离子的吸附量均远高于壳聚糖,而杯4]芳烃包覆壳聚糖对钕离子的吸附量则较低,但在钕离子的平衡浓度较低时对钕离子的吸附仍高于壳聚糖.同时还研究了杯芳烃包覆壳聚糖的吸附量和pH值的关系.
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| 关 键 词： | 杯芳烃改性 壳聚糖 钕离子 吸附等温线 |
| 收稿时间： | 9/21/2010 8:27:39 PM |
| 修稿时间： | 2011/11/14 0:00:00 |
Adsorptive Neodymium Ions Properties of Chitosan Modified by Calixarene |
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| YANG Yuxiang,AN Jie,YANG Yubing and LIN Hai.Adsorptive Neodymium Ions Properties of Chitosan Modified by Calixarene[J].Journal of Tongji University(Natural Science),2012,40(1):0143-0147. |
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| Authors: | YANG Yuxiang AN Jie YANG Yubing and LIN Hai |
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| Institution: | East China University of Science & Technology,Department of Chemistry, East China University of Science & Technology,Department of Chemistry, East China University of Science & Technology,Analysis Test Center, Yangzhou University, Yangzhou,Department of Chemistry, East China University of Science & Technology |
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| Abstract: | Chitosan was modified by calix8]arene, calix6]arene and calix4]arene, and the adsorption properties of neodymium ion on them were studied. Due to the highly specific and sensitive color reaction between arsenazo III and neodymium ion in weak acid solution, the neodymium ion concentration before and after adsorption was determined by 752 spectrophotometer using arsenazo III as color reagent, and the organic cation diphenyl guanidine added to it in order to improve its sensitivity simultaneously. The adsorptive amount and the adsorption equilibrium concentration of neodymium ions were analyzed, and then the adsorption isotherms of neodymium ion on the modified chitosan were obtained. |
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| Keywords: | calixarene modified chitosan neodymium ion adsorption isotherm |
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