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

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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   

  1. 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

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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.

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

CLC Number: 

  • X703.5
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