ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS
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ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS
ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS
高分子科学(英文版)2007年第6期 页码:621-627
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This work was supported by the Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection,China(Grant Code JLCBE6006).()
DOI:
中图分类号:TQ028.15
纸质出版:2007
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[1].ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS[J].Chinese Journal of Polymer Science,2007(06):621-627.
Yue Sun Ai-min Li~b Zheng-hao Fei~c Quan-xing Zhang~b Shi-he Wang~a ~aDepartment of Municipal Engineering, Southeast University, Nanjing 210096, et al. ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS[J]. 2007, (6): 621-627.
[1].ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS[J].Chinese Journal of Polymer Science,2007(06):621-627.DOI:
Yue Sun Ai-min Li~b Zheng-hao Fei~c Quan-xing Zhang~b Shi-he Wang~a ~aDepartment of Municipal Engineering, Southeast University, Nanjing 210096, et al. ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS[J]. 2007, (6): 621-627.DOI:
ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS
<正>A macroporous polymeric adsorbent NG-8 was synthesized with divinylbenzene using conventional suspension polymerization technique.Its aminated product NG-9 was prepared by introducing tertiary amino groups into NG-8 for removal of tannin acid from aqueous solutions.NG-9 could be used directly without a wetting process and had higher adsorption capacity than NG-8
which might be attributed to the enhanced adsorbent-adsorbate interaction due to the tertiary amino groups on the polymeric matrix.The Langmuir equation was successfully employed to describe the adsorption process.The adsorption enthalpy change further validated the uptake of tannin acid on NG-9 to be an enhanced physical adsorption because of the Lewis acid-base interaction.In addition
adsorption kinetic studies testified that the tertiary amino groups on the polymer matrix could decrease the adsorption rate maybe for the hindrance of the tertiary amino groups and water clusters built up.
Abstract
A macroporous polymeric adsorbent NG-8 was synthesized with divinylbenzene using conventional suspension polymerization technique.Its aminated product NG-9 was prepared by introducing tertiary amino groups into NG-8 for removal of tannin acid from aqueous solutions.NG-9 could be used directly without a wetting process and had higher adsorption capacity than NG-8
which might be attributed to the enhanced adsorbent-adsorbate interaction due to the tertiary amino groups on the polymeric matrix.The Langmuir equation was successfully employed to describe the adsorption process.The adsorption enthalpy change further validated the uptake of tannin acid on NG-9 to be an enhanced physical adsorption because of the Lewis acid-base interaction.In addition
adsorption kinetic studies testified that the tertiary amino groups on the polymer matrix could decrease the adsorption rate maybe for the hindrance of the tertiary amino groups and water clusters built up.
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