Adsorption Properties of Hydroxybenzoic Acids on Amine Modified Polystyrene Resin

doi:10.3969/j.issn.0253-374x.2010.06.014

Home > Archive>Volume 38, Issue 6, 2010 >859-864. DOI:10.3969/j.issn.0253-374x.2010.06.014

Adsorption Properties of Hydroxybenzoic Acids on Amine Modified Polystyrene Resin
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                        10.3969/j.issn.0253-374x.2010.06.014
                    
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                        WANG XuejiangWANG Xuejiang
State Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Shanghai 200092, China;College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China
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LIANG XiaLIANG Xia
State Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Shanghai 200092, China;College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China
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XU XiaomingXU Xiaoming
State Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Shanghai 200092, China;College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China
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ZHANG YaleiZHANG Yalei
State Key Laboratory of Pollution Control and Resource Reuse,Tongji University,Shanghai 200092, China;College of Environmental Science and Engineering,Tongji University,Shanghai 200092,China
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Abstract:

A new amine-modified hypercrosslinked polymeric resin (NDA) was prepared by introducing dimethylamine groups into hypercrosslinked copolymer of styrene and divinylbenzend (NDA150).The adsorption behaviors of o-hydroxybenzoic acid,p-hydroxybenzoic acid and 2,6-bihydroxycenzoic acid onto NDA150 and NDA were studied.The results show that the adsorption equilibrium data of o-hydroxybenzoic acid,p-hydroxybenzoic acid and 2,6-bihydroxycenzoic acid on NDA150 and NDA were well fitted by the Langmuir,Freundlich and Redlich-Peterson isotherms in the studied concentration ranges.The adsorption was exothermic and basically of physical character.NDA had higher adsorption affinity and capacity for the above hydroxybenzoic acids than those of NDA150,which was mainly due to the influence of amine group on NDA.

Key words:resin; adsorption; hydroxybenzoic acid; adsorption enthalpy

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WANG Xuejiang, LIANG Xia, XU Xiaoming, ZHANG Yalei. Adsorption Properties of Hydroxybenzoic Acids on Amine Modified Polystyrene Resin[J].同济大学学报(自然科学版),2010,38(6):859~864

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Received:March 18,2009
Revised:April 06,2010
Adopted:July 08,2009
Online: June 24,2010
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