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Desulfurization of gasoline using molecularly imprinted chitosan as selective adsorbents

For desulfurization of gasoline, novel chitosan-based molecularly imprinted polymer (MIP) was prepared by cross-linking chitosan with epichlorohydrin in the presence of dibenzothiophene (DBT) as the template. The influence of cross-linking ratio on the specific adsorption was evaluated. The effects... Full description

Journal Title: Applied biochemistry and biotechnology January 2010, Vol.160(2), pp.593-603
Main Author: Chang, Yonghui
Other Authors: Zhang, Lei , Ying, Hanjie , Li, Zhenjiang , Lv, Hao , Ouyang, Pingkai
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1559-0291 ; PMID: 19050832 Version:1 ; DOI: 10.1007/s12010-008-8441-7
Link: http://pubmed.gov/19050832
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recordid: medline19050832
title: Desulfurization of gasoline using molecularly imprinted chitosan as selective adsorbents
format: Article
creator:
  • Chang, Yonghui
  • Zhang, Lei
  • Ying, Hanjie
  • Li, Zhenjiang
  • Lv, Hao
  • Ouyang, Pingkai
subjects:
  • Chitosan -- Chemistry
  • Gasoline -- Analysis
ispartof: Applied biochemistry and biotechnology, January 2010, Vol.160(2), pp.593-603
description: For desulfurization of gasoline, novel chitosan-based molecularly imprinted polymer (MIP) was prepared by cross-linking chitosan with epichlorohydrin in the presence of dibenzothiophene (DBT) as the template. The influence of cross-linking ratio on the specific adsorption was evaluated. The effects of the types and the amounts of porogen on selectivity of the chitosan MIP were also examined. Results showed that MIP has a higher recognition property to DBT. The maximum rebinding capacities of the MIP reached 22.69 mg g(-1) in the model solution. The adsorption behaviors of the MIP including adsorption kinetics, isotherms, and thermodynamic parameters were investigated and the experimental data agreed well with the Langmuir model. The dynamical adsorption behaved in first-order kinetics. Negative values for the Gibbs free energy showed that the adsorptions were spontaneous processes. The MIP was further used to selectively adsorb organosulfur from gasoline.
language: eng
source:
identifier: E-ISSN: 1559-0291 ; PMID: 19050832 Version:1 ; DOI: 10.1007/s12010-008-8441-7
fulltext: fulltext
issn:
  • 15590291
  • 1559-0291
url: Link


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titleDesulfurization of gasoline using molecularly imprinted chitosan as selective adsorbents
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subjectChitosan -- Chemistry ; Gasoline -- Analysis
descriptionFor desulfurization of gasoline, novel chitosan-based molecularly imprinted polymer (MIP) was prepared by cross-linking chitosan with epichlorohydrin in the presence of dibenzothiophene (DBT) as the template. The influence of cross-linking ratio on the specific adsorption was evaluated. The effects of the types and the amounts of porogen on selectivity of the chitosan MIP were also examined. Results showed that MIP has a higher recognition property to DBT. The maximum rebinding capacities of the MIP reached 22.69 mg g(-1) in the model solution. The adsorption behaviors of the MIP including adsorption kinetics, isotherms, and thermodynamic parameters were investigated and the experimental data agreed well with the Langmuir model. The dynamical adsorption behaved in first-order kinetics. Negative values for the Gibbs free energy showed that the adsorptions were spontaneous processes. The MIP was further used to selectively adsorb organosulfur from gasoline.
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abstractFor desulfurization of gasoline, novel chitosan-based molecularly imprinted polymer (MIP) was prepared by cross-linking chitosan with epichlorohydrin in the presence of dibenzothiophene (DBT) as the template. The influence of cross-linking ratio on the specific adsorption was evaluated. The effects of the types and the amounts of porogen on selectivity of the chitosan MIP were also examined. Results showed that MIP has a higher recognition property to DBT. The maximum rebinding capacities of the MIP reached 22.69 mg g(-1) in the model solution. The adsorption behaviors of the MIP including adsorption kinetics, isotherms, and thermodynamic parameters were investigated and the experimental data agreed well with the Langmuir model. The dynamical adsorption behaved in first-order kinetics. Negative values for the Gibbs free energy showed that the adsorptions were spontaneous processes. The MIP was further used to selectively adsorb organosulfur from gasoline.
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