| STUDY ON THE ADSORPTION OF PHENOL BY CHITOSAN FROM AQUEOUS SOLUTION |
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| 作者姓名： | Jin-long Yan |
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| 作者单位： | School of Chemical and Biological Engineering, Yancheng Institute of Technology, Yancheng 224003, China |
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| 基金项目： | The author acknowledges the financial support from the Excellent Youth Teacher Fund of Yancheng Institute of Technology （No. ZKC200401 ）. |
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| 摘 要： | The effects of pH, initial concentration and temperature on the adsorption of phenol by chitosan were investigated in this paper. The isothermal data was applied to Langmuir linear and the Freundlich linear isotherm equation, and the thermodynamic parameters （AH, AG, AS） were calculated according to the values of binding Langmuir constant, KL. Results indicated that the adsorption between chitosan and phenol was significantly physical in nature, the negative ΔH constant at lower temperature confirmed that more phenol was adsorbed by chitosan at lower temperature. The kinetics of the sorption process of phenol on chitosan was investigated using the pseudo-first order and pseudo-second order kinetics, and results showed that the second order equation model provided the best correlation with the experimental results.
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| 关 键 词： | 吸附 苯酚 壳聚糖 水溶液 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2006-02-10 |
STUDY ON THE ADSORPTION OF PHENOL BY CHITOSAN FROM AQUEOUS SOLUTION |
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| Jin-long Yan.STUDY ON THE ADSORPTION OF PHENOL BY CHITOSAN FROM AQUEOUS SOLUTION[J].Chinese Journal of Polymer Science,2006,0(5):497-502. |
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| Authors: | Jin-long Yan |
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| Institution: | School of Chemical and Biological Engineering, Yancheng Institute of Technology, Yancheng 224003, China |
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| Abstract: | The effects of pH, initial concentration and temperature on the adsorption of phenol by chitosan were investigated in this paper. The isothermal data was applied to Langmuir linear and the Freundlich linear isotherm equation, and the thermodynamic parameters (△H, △G, △S) were calculated according to the values of binding Langmuir constant, KL. Results indicated that the adsorption between chitosan and phenol was significantly physical in nature, the negative △H constant at lower temperature confirmed that more phenol was adsorbed by chitosan at lower temperature. The kinetics of the sorption process of phenol on chitosan was investigated using the pseudo-first order and pseudo-second order kinetics, and results showed that the second order equation model provided the best correlation with the experimental results. |
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| Keywords: | Adsorption Phenol Chitosan |
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