| 硫辛酸在3种不同树脂上的吸附热力学和动力学研究 |
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| 引用本文： | 魏瑞霞,陈金龙.硫辛酸在3种不同树脂上的吸附热力学和动力学研究[J].离子交换与吸附,2010,26(4). |
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| 作者姓名： | 魏瑞霞 陈金龙 |
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| 作者单位： | 河北理工大学资源与环境学院;南京大学环境工程系; |
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| 摘 要： | 研究了硫辛酸在3种不同树脂上的吸附热力学和动力学。研究结果表明,硫辛酸在NG-16树脂上的吸附等温线符合Langmuir等温吸附方程,是单分子层吸附,吸附过程符合一级动力学吸附方程。硫辛酸在NDA-100和ND-90树脂上的吸附等温线符合Langmuir等温吸附方程,但并不只是单分子层吸附,对于中高浓度(大于400mg/L)的硫辛酸溶液更重要的是微孔填充作用。硫辛酸在NDA-100和ND-90树脂上的吸附过程分为大孔、中孔区的表面吸附和微孔区的微孔填充两个阶段,两个阶段都符合一级动力学吸附方程。
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| 关 键 词： | 硫辛酸 吸附 树脂 热力学 动力学 |
STUDIES OF THE ADSORPTION THERMODYNAMICS AND KINETICS OF LIPOIC ACID ON THREE TYPES OF RESIN |
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| WEI Ruixia,CHEN Jinlong.STUDIES OF THE ADSORPTION THERMODYNAMICS AND KINETICS OF LIPOIC ACID ON THREE TYPES OF RESIN[J].Ion Exchange and Adsorption,2010,26(4). |
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| Authors: | WEI Ruixia CHEN Jinlong |
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| Institution: | WEI Ruixia1 CHEN Jinlong2 1.College of Resource &Environment,Hebei Polytechnic University,Tangshan 063009,China 2.Department of Environmental Engineering,Nanjing University,Nanjing 210093,China |
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| Abstract: | Study on adsorption thermodynamics and kinetics of Lipoic acid by NG-16,NDA-100 and ND-90 resin was carried out through static experiments.The results showed that the adsorption of Lipoic acid on NG-16 resin is Langmuir monolayer,and the adsorption rate appears to be the first order kinetics.The adsorption data of Lipoic acid on NDA-100 and ND-90 resin also were described well by the Langmuir isotherm,which is caused by the capillary condensation and the volume filling of micropores besides monolayer adsorp... |
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| Keywords: | Lipoic acid Adsorption Resin Thermodynamics Kinetics |
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