β-环糊精交联聚合物对氯苯的吸附特性

J4 ›› 2012, Vol. 42 ›› Issue (4): 1166-1172.

β-环糊精交联聚合物对氯苯的吸附特性

邹东雷|唐抒圆|熊厚峰|唐绍福|李春华|陈鹏

吉林大学地下水资源与环境教育部重点实验室|长春130021

收稿日期:2011-08-27 出版日期:2012-07-26 发布日期:2012-07-26
作者简介:邹东雷(1964-)|男|教授|主要从事环境工程方面的教学和科研工作|Tel:0431-88499792|E-mail:zoudl@jlu.edu.cn
基金资助:
国家“863”计划项目（2008AA06A410）

Adsorption Characteristic of Chlorobenzene in Water by β-Cyclodextrin Cross-Linked Polymer

ZOU Dong-lei, TANG Shu-yuan, XIONG Hou-feng, TANG Shao-fu, LI Chun-hua, CHEN Peng

Key Laboratory of |Groundwater Resources and Environment, Ministry of Education, Jilin University,Changchun130021,China

Received:2011-08-27 Online:2012-07-26 Published:2012-07-26

摘要/Abstract

摘要：

通过对水中含有微量氯苯的吸附特性研究，考察β-环糊精交联聚合物吸附氯苯的动力学、热力学及连续运行条件下的稳定性和再生性能。实验结果表明：β-环糊精交联聚合物吸附氯苯的过程符合准二级动力学模型，即化学吸附是吸附过程的控制步骤；β-环糊精交联聚合物上的等温吸附符合Langmuir吸附等温模型。在15、 25、35 ℃时最大吸附量分别为23.36、 28.17、27.85 mg/g；动态模拟实验中，当氯苯质量浓度为10 mg/L时，氯苯的去除率大于80%。乙醇作为溶剂可以使吸附饱和的β-环糊精交联聚合物再生。

关键词: β-环糊精交联聚合物, 氯苯, 吸附动力学, 等温吸附

Abstract:

Batch adsorption experiments were carried out for the kinetics and equilibrium of Chlorobenzene(CB) in aqueous solutions using a β-cyclodextrin cross-linked polymer(β-CDP) as adsorbent，and the regeneration capacity of β-CDP. The removal efficiency and the stability of β-CDP treating Chlorobenzene under continuous operating conditions were simulated. Adsorption data were fitted using the pseudo-first-order, pseudo-second-order kinetic equations, Langmuir and Freundlich model. It was found that the adsorption kinetics followed a pseudo-second-order model for CB concentration range studied in the present work, suggesting that the rate-limiting step may be chemisorption. The adsorption data fit the Langmuir isotherm model and the maximum adsorption capacity of CB at 15, 25, 35℃ were 23.36, 28.17, 27.85 mg/g, respectively.

Key words: β-cyclodextrin cross-linked polymer, Chlorobenzene, adsorption kinetics, isothermal adsorption

中图分类号:

X703.5

邹东雷, 唐抒圆, 熊厚峰, 唐绍福, 李春华, 陈鹏. β-环糊精交联聚合物对氯苯的吸附特性[J]. J4, 2012, 42(4): 1166-1172.

ZOU Dong-lei, TANG Shu-yuan, XIONG Hou-feng, TANG Shao-fu, LI Chun-hua, CHEN Peng. Adsorption Characteristic of Chlorobenzene in Water by β-Cyclodextrin Cross-Linked Polymer[J]. J4, 2012, 42(4): 1166-1172.

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