ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS

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; China ~bDepartment of Environmental Engineering; Nanjing University; Nanjing 210093; China ~cJiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection; Yancheng Teachers College; Jiangsu 224002; China

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ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS

Updated：2021-06-21

- 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）.()
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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, 等. ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS[J]. 高分子科学（英文版）, 2007,(6):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.
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, 等. ADSORPTION OF TANNIN ACID ONTO AN AMINATED MACROPOROUS RESIN FROM AQUEOUS SOLUTIONS[J]. 高分子科学（英文版）, 2007,(6):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：

摘要

<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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