华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (10): 40-43.

• 材料科学与技术 • 上一篇    下一篇

微波辐射下甲醛交联壳聚糖香草醛希夫碱的制备及吸附性能

葛华才 马志民 郑大锋 葛俊伟   

  1. 华南理工大学 化学科学学院,广东 广州 510640
  • 收稿日期:2005-07-15 出版日期:2006-10-25 发布日期:2006-10-25
  • 通信作者: 葛华才(1963-),男,博士,副教授,主要从事精细化工和化学动力学研究 E-mail:chhcge@scut.edu.cn
  • 作者简介:葛华才(1963-),男,博士,副教授,主要从事精细化工和化学动力学研究
  • 基金资助:

    国家自然科学基金资助项目(50673027)

Synthesis and Adsorption Property of Cross-Linked Chitosan Vanillin Schif Base by Formaldehyde Under Microwave Radiation

Ge Hua-ca  Ma Zhi-min  Zheng Da-feng  Ge Jun-wei   

  1. School of Chemical Science,South China Univ .of Tech.,Guangzhou 5 10640,Guangdong,China
  • Received:2005-07-15 Online:2006-10-25 Published:2006-10-25
  • Contact: 葛华才(1963-),男,博士,副教授,主要从事精细化工和化学动力学研究 E-mail:chhcge@scut.edu.cn
  • About author:葛华才(1963-),男,博士,副教授,主要从事精细化工和化学动力学研究
  • Supported by:

    国家自然科学基金资助项目(50673027)

摘要: 利用微波辐射法合成了甲醛交联壳聚糖香草醛希夫碱,用IR和XRD对其结构进行了表征,并用uV吸收光谱比较了甲醛交联前后壳聚糖香草醛希夫碱在酸中的溶解性能.吸附实验表明。该壳聚糖改性产物对一些金属离子的吸附性能与壳聚糖香草醛希夫碱和甲醛交联的壳聚糖有所不同,对Cu2+ 具有良好的吸附选择性,并且在酸性环境中几乎不溶解,因此可用作Cu2+的选择性吸附剂.

关键词: 壳聚糖, 改性, 微波辐射, 吸附

Abstract:

A cross.linked chitosan vanillin Schif base was synthesized by formaldehyde under microwave radiation,whose structure was then characterized by means of IR and XRD.The solubility of the product·in acidic solutions was also compared with that of chitosan vanillin Schif base using UV absorption spectrum.The adsorption experi-ment showed that.as compared with chitosan vanillin schif base and cross.linked chitosan by form aldehyde,the
product is of different adsorption capability for some metal ions.Moreover.as the product possesses excellent selec-tive adsorption for Cu2+ and is insoluble in acid conditions.it can be used as a selective adsorbent of Cu2+ .

Key words: chitosan, modification, microwave radiation, adsorption