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›› 2007, Vol. 7 ›› Issue (1): 49-53.

• 反应与分离 • 上一篇    下一篇

一种新型的聚苯乙烯二乙醇胺树脂对铜离子的吸附性能

王燕芹,魏荣卿,刘晓宁,刘迎   

  1. 南京工业大学制药与生命科学学院
  • 出版日期:2007-02-20 发布日期:2007-02-20

Adsorption of Polystyrene Diethanolamine Resin for Cupric Ion

WANG Yan-qin,WEI Rong-qing,LIU Xiao-ning,LIU Ying   

  1. College of Life Science and Pharmaceutical Engineering, Nanjing University of Technology
  • Online:2007-02-20 Published:2007-02-20

摘要: 用氯乙酰化聚苯乙烯树脂(PS-Acyl-Cl)取代常用的原料氯甲基化聚苯乙烯(PS-CH2-Cl)树脂,固载二乙醇胺(DEA)得到一新型的聚苯乙烯二乙醇胺(PS-Acyl-DEA)树脂. 用这种PS-Acyl-DEA树脂对铜离子进行吸附,并研究了其吸附动力学和吸附等温线. 结果发现,树脂对铜离子的吸附量随DEA担载量的增加而增加,对铜离子的最大吸附量可达3.79 mmol/g,且在pH 5.6~10.5范围内树脂对铜离子均有稳定的吸附量,树脂的吸附率达到93.8%.

关键词: 氯乙酰化聚苯乙烯, 聚苯乙烯二乙醇胺树脂, 吸附, 铜离子

Abstract: The new polystyrene diethanolamine resin (PS-Acyl-DEA) was synthesized by the reaction of diethanolamine (DEA) with chloracetylated polystyrene (PS-Acyl-Cl) instead of chloromethylated polystyrene (PS-CH2-Cl) which is commonly used. The adsorption kinetics and isotherms of obtained product for cupric ion were studied. The results showed that the adsorption capacity increased as the increasing loading of the product and was steady in the environment with the pH values between 5.6 and 10.5. The Cu2+ adsorption quantity was 3.79 mmol/g and the adsorption rate of the resin to cupric ions was up to 93.8%.

Key words: chloracetylated polystyrene, polystyrene diethanolamine resin, adsorption, cupric ion