Studies on Preparation of the Novel Crosslinked Chitosan Resin and Adsorption of Benzoic Acid

Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (8): 842-846. Previous Articles

新型交联壳聚糖树脂的制备及其对苯甲酸的吸附行为研究

袁彦超, 陈炳稔, 王瑞香, 石光, 陈玉媚

华南师范大学化学系, 广州, 510631

投稿日期:2003-05-27 修回日期:2003-12-25 发布日期:2014-02-18
通讯作者: 陈炳稔,E-mail:chenbr@scnu.edu.cn E-mail:chenbr@scnu.edu.cn

Studies on Preparation of the Novel Crosslinked Chitosan Resin and Adsorption of Benzoic Acid

YUAN Yan-Chao, CHEN Bing-Ren, WANG Rui-Xiang, SHI Guang, CHEN Yu-Mei

Department of Chemistry, South China Normal University, Guangzhou 510631

Received:2003-05-27 Revised:2003-12-25 Published:2014-02-18

Abstract

With chitosan as the raw material, a novel resin was prepared through inverse suspension crosslinking by formaldehyde and epichlorohydrin. The structure of the resin was characterized by Fourier transform IR and Scanning Electron Micrograph. The adsorption isotherms of benzoic acid from water onto the novel resin were determined at different temperatures, and the thermodynamic parameters in adsorption process were calculated. The experimental results were fitted with Freundlich equations well. The thermodynamics of the systems was related closely to the adsorption mechanisms. When the concentration of benzoic acid was relatively low, the adsorption was an exothermal process with the system entropy decreasing, and the decrease of temperature did benefit the process. When the concentration of benzoic acid was relatively high, the adsorption was an endothermal process with the system entropy increasing, and the increase of temperature did benefit the process.

Key words: crosslinked chitosan, preparation, benzoic acid, adsorption mechanism

CLC Number:

O647.3

Cite this article

YUAN Yan-Chao, CHEN Bing-Ren, WANG Rui-Xiang, SHI Guang, CHEN Yu-Mei. Studies on Preparation of the Novel Crosslinked Chitosan Resin and Adsorption of Benzoic Acid[J]. Acta Chimica Sinica, 2004, 62(8): 842-846.

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新型交联壳聚糖树脂的制备及其对苯甲酸的吸附行为研究

Studies on Preparation of the Novel Crosslinked Chitosan Resin and Adsorption of Benzoic Acid

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