| 两种吸附树脂对4B酸吸附行为的比较研究 |
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| 引用本文： | 周玮,孙越,王穆君,张全兴.两种吸附树脂对4B酸吸附行为的比较研究[J].离子交换与吸附,2004,20(6):526-532. |
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| 作者姓名： | 周玮 孙越 王穆君 张全兴 |
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| 作者单位： | 污染控制与资源化研究国家重点实验室,南京大学环境学院,南京,210093 |
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| 基金项目： | 国家自然科学基金资助项目 (20274017) |
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| 摘 要： | 研究了新型复合功能吸附树脂NDA-99和超高交联大孔吸附树脂JX-101对水溶液中4B酸(对甲苯胺-2-磺酸)的静态吸附行为和热力学特性，结果表明，NDA-99树脂对4B酸的吸附量明显大于JX-101树脂，两种树脂对4B酸的吸附均符合Freundlich吸附等温方程．其中，JX-101对4B酸的吸附属于物理吸附：NDA-99由于树脂表面存在弱碱性官能团，对4B酸的吸附表现为物理吸附和化学络合协同作用。
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| 关 键 词： | 吸附树脂 吸附 热力学 4B酸 |
| 文章编号： | 1001-4593(2004)06-0526-07 |
| 修稿时间： | 2004年6月15日 |
STUDY ON ADSORPTION BEHAVIORS OF ACID 4B ON TWO ADSORPTION RESINS |
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| ZHOU Wei SUN Yue WANG Mujun ZHANG Quanxing State Key Laboratory of Pollution Control and Resources Reuse School of the Environment,Nanjing University,Nanjing ,China.STUDY ON ADSORPTION BEHAVIORS OF ACID 4B ON TWO ADSORPTION RESINS[J].Ion Exchange and Adsorption,2004,20(6):526-532. |
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| Authors: | ZHOU Wei SUN Yue WANG Mujun ZHANG Quanxing State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Nanjing China |
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| Affiliation: | ZHOU Wei SUN Yue WANG Mujun ZHANG Quanxing State Key Laboratory of Pollution Control and Resources Reuse School of the Environment,Nanjing University,Nanjing 210093,China |
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| Abstract: | Adsorption behavior of acid 4B(p-toluidine-2-sulphur acid) from aqueous solution on the two polymeric adsorbents NDA-99 and JX-101 was studied within temperature range of 283-323K. The empirical Freundlich equation was successfully employed to describe the adsorption process and the parameters of Freundlich isotherms were obtained. The capacity of acid 4B on NDA-99 was much more than that on JX-101 due to the basic group on NDA-99. The adsorption process of acid 4B on NDA-99 was a combine interaction of physical and chemical factors and on JX-101 was only physical. The isosteric enthalpy, free energy and entropy of adsorption were calculated, and the reasonable interpretation was given. |
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| Keywords: | Polymeric adsorbent 4B Acid Adsorption Adsorption thermodynamics |
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