journal6 ›› 2002, Vol. 23 ›› Issue (1): 69-73.

• 化学化工 • 上一篇    下一篇

聚酰胺对水溶液中2,4-二硝基苯酚的吸附行为

  

  1. (1.玉林师范学院化学与生物系,广西 玉林 537000;2.桂林电子工业学院,广西 桂林 541004)
  • 出版日期:2002-03-15 发布日期:2013-01-05
  • 作者简介:谢祖芳(1956-),女,广西玉林市人,玉林师范学院化学与生物系讲师,主要从事水污染控制及废物资源化的基础理论研究.

The Adsorption of 2,4-binitro-phenol in Aqueous Solutions by Polyamide

  1. (1.Department of Chemistry and Biology,Yulin Teachers' College,Yulin 537000,Guangxi China;2.Guilin University of Electronic Technology,Guilin 541004,Guangxi China)
  • Online:2002-03-15 Published:2013-01-05

摘要:研究了聚酰胺树脂吸附水溶液中2,4-二硝基苯酚的性能、条件及其影响因素.结果表明:聚酰胺树脂对2,4-二硝基苯酚具有较强的吸附能力,pH值是影响吸附的主要因素;吸附初段具有较快的动力学速度,中段速率与浓度符合二级反应动力学;吸附过程符合Flundlich 吸附等温式;用1% 氨水溶液可快速完全解吸;吸附过程属于一种基于氢键和范德华力的物理吸附范畴.

关键词: 聚酰胺树脂, 2, 4-二硝基苯酚, 吸附

Abstract: The properties,optimal conditions and influencing factors for polyamide resin to  adsorb 2,4-binitro-phenol from aqueous solutions have been investigated.The results show that  polyamide has a better adsorption capability,and that the pH value is the main factor affecting  adsorption;the initial rate of 2,4-binitro-phenol adsorption on polyamide is faster,and the  middle rate is second-order with respect to its concentration.The adsorption process in solution  exhibits Freundlich behavior and is mainly physical adsorption.The 2,4-binitro-phenol adsorbed  on the resin can be eluted by 1% ammoniac solution quickly.

Key words: polyamide, 2,4-binitro-phenol, adsorption

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