| β-环糊精交联聚合物对氯苯的吸附特性 |
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| 引用本文： | 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].吉林大学学报(地球科学版),2012(4):1166-1172. |
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| 作者姓名： | 邹东雷 唐抒圆 熊厚峰 唐绍福 李春华 陈鹏 |
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| 作者单位： | 吉林大学地下水资源与环境教育部重点实验室 |
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| 基金项目： | 国家“863”计划项目(2008AA06A410) |
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| 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、27.85mg/g;动态模拟实验中,当氯苯质量浓度为10mg/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。
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| 关 键 词： | β-环糊精交联聚合物 氯苯 吸附动力学 等温吸附 |
Adsorption Characteristic of Chlorobenzene in Water by β-Cyclodextrin Cross-Linked Polymer |
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| 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].Journal of Jilin Unviersity:Earth Science Edition,2012(4):1166-1172. |
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| Authors: | Zou Dong-lei Tang Shu-yuan Xiong Hou-feng Tang Shao-fu Li Chun-hua Chen Peng |
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| Institution: | Key Laboratory of Groundwater Resources and Environment,Ministry of Education,Jilin University,Changchun 130021,China |
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| 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. |
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| Keywords: | β-cyclodextrin cross-linked polymer Chlorobenzene adsorption kinetics isothermal adsorption |
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