STUDY OF ADSORPTION OF 2-THIOPHENEACETIC ACID ON THREE ADSORBENT RESINS

WEI Ruixia; CHEN Jinlong; CHEN Lianlong; FEI Zhenghao; LI Aimin; ZHANG Quanxing

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STUDY OF ADSORPTION OF 2-THIOPHENEACETIC ACID ON THREE ADSORBENT RESINS

Research Article | 更新时间：2021-03-19

- STUDY OF ADSORPTION OF 2-THIOPHENEACETIC ACID ON THREE ADSORBENT RESINS
- Acta Polymerica Sinica Issue 4, Pages: 471-477(2004)
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- Published：20 August 2004，
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WEI Ruixia, CHEN Jinlong, CHEN Lianlong, FEI Zhenghao, LI Aimin, ZHANG Quanxing. STUDY OF ADSORPTION OF 2-THIOPHENEACETIC ACID ON THREE ADSORBENT RESINS. [J]. Acta Polymerica Sinica (4):471-477(2004)
DOI：

WEI Ruixia, CHEN Jinlong, CHEN Lianlong, FEI Zhenghao, LI Aimin, ZHANG Quanxing. STUDY OF ADSORPTION OF 2-THIOPHENEACETIC ACID ON THREE ADSORBENT RESINS. [J]. Acta Polymerica Sinica (4):471-477(2004) DOI：

摘要

通过静态吸附实验

研究了XAD-4、NDA-100和ND-90吸附树脂对水溶液中 2-噻吩乙酸的吸附热力学及动力学特性

结果表明

2-噻吩乙酸在XAD-4树脂上是单层吸附

符合Langmuir等温吸附方程

吸附过程符合准一级动力学吸附方程.2-噻吩乙酸在NDA-100和ND-90树脂上的吸附也能用Langmuir等温吸附方程表示

但并不只是单层吸附而主要是由毛细管凝聚和微孔填充作用造成的

吸附过程可分为大孔和中孔区的吸附以及微孔区的吸附两个阶段

两个阶段都符合准一级动力学吸附方程.

Abstract

Studies on the adsorption thermodynamics and kinetics of 2-thiopheneacetic acid by XAD-4

NDA-100 and ND-90 resins were carried out through static experiments. The results showed that the adsorption of 2-thiopheneacetic acid on XAD-4 resin was a Langmuir monolayer type one

and the adsorption rate implied a first order kinetics. The adsorption data of 2-thiopheneacetic acid on NDA-100 and ND-90 resins were also discribed well by the Langmuir isotherm

which was caused by the capillary condensation and the volume filling of micropores besides the monolayer adsorption．The adsorption of 2-thiopheneacetic acid on NDA-100 and ND-90 resins is carried out in two regions the macropore／mesopore region and the micropore one．The adsorption rates in the two regions both fulfill the first order kinetics.

关键词

2-噻吩乙酸吸附树脂热力学动力学

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Technical Institute of Physics and Chemistry, Chinese Academy of Sciences

Zhong Ke San Huan Research

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