Preparation of Modified Chitosan Microsphere and Its Adsorption Behavior for Poly-galacturonic Acid

doi:10.3969/j.issn.1000-565X.2011.01.014

Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (1): 74-78.doi: 10.3969/j.issn.1000-565X.2011.01.014

• Electronics, Communication & Automation Technology • Previous Articles Next Articles

Preparation of Modified Chitosan Microsphere and Its Adsorption Behavior for Poly-galacturonic Acid

Liu Kai He Bei-hai Li Xiao-min Zhao Guang-lei

South China university of technology of the pulp and paper engineering state key laboratory, guangdong guangzhou 51064

Received:2010-05-24 Revised:2010-08-27 Online:2011-01-25 Published:2010-12-01
Contact: 赵光磊(1975一)，男，博士，讲师，主要从事造纸化学品、制浆造纸过程水生物处理技术应用等研究 E-mail:glzhao@scut.edu.cn
About author:刘凯(1982一)，男，博士生，主要从事纸浆流送与纸页成形研究
Supported by:
国家自然科学基金资助项目(20776054)；教育部高等学校博士点基金新教师课题(200805611104)；制浆造纸国家重点实验室开放基金资助项目(200932)；华南理工大学中央高校基本业务费重点资助项目(2009ZZ0020)

Abstract

Abstract:

In order to remove anionic trash in whitewater effectively to improve the recycling of paper-making whitewater. In this paper, chitosan microsphere was prepared, and modified with glutaraldehyde, then the adsorption of chitosan microsphere and its modifier for poly-galacturonic acid were studied. The results showed that the cross-linking of chitosan microsphere and glutaraldehyde followed the pseudo-second-order equation and Freundlich equation. As the pH of poly-galacturonic acid solution increased, the adsorption quantity of chitosan microsphere and its modifier for poly-galacturonic acid gradually decreased first and then increased, but at the same pH, the adsorption quantity of modified chitosan microsphere for poly-galacturonic acid was larger than that of chitosan microsphere. In addition, with the gradual increase in concentration of sodium chloride, the adsorption quantity of chitosan microsphere and its modifier for poly-galacturonic acid rapidly decreased, but at the same concentration of sodium chloride, the adsorption quantity of modified chitosan microsphere for poly-galacturonic acid was slightly larger than that of chitosan microsphere.

Key words: chitosan, glutaraldehyde, poly-galacturonic acid, adsorption

Liu Kai He Bei-hai Li Xiao-min Zhao Guang-lei. Preparation of Modified Chitosan Microsphere and Its Adsorption Behavior for Poly-galacturonic Acid[J]. Journal of South China University of Technology (Natural Science Edition), 2011, 39(1): 74-78.

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Preparation of Modified Chitosan Microsphere and Its Adsorption Behavior for Poly-galacturonic Acid

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