新型改性壳聚糖的制备及其对2,4–二氯苯酚的吸附

化工进展

新型改性壳聚糖的制备及其对2,4–二氯苯酚的吸附

辛梅华;谢英;李明春

华侨大学材料科学与工程学院

出版日期:2007-01-25 发布日期:2007-01-25

Preparation of N-salicyl chitosan and application for adsorption of 2,4-chlorophenol

XIN Meihua;XIE Ying;LI Mingchun

School of Material Science and Engineering, Huaqiao University

Online:2007-01-25 Published:2007-01-25

摘要/Abstract

摘要： 采用水杨醛与壳聚糖反应生成Schiff’s碱，再用NaBH4还原，环氧氯丙烷交联制备壳聚糖衍生物，用FTIR对改性壳聚糖进行表征，并用于2,4-二氯苯酚的吸附研究。测试了改性产物的溶解性能，考察了吸附时间、溶液pH值、酚的浓度以及改性剂用量等因素对氯酚吸附的影响。结果表明，水杨醛改性环氧氯丙烷交联壳聚糖不溶于水、酸和碱；在pH=7、吸附时间为2 h时，对2,4-二氯酚的吸附量为128.2 mg/g。

Abstract: N-salicyl chitosan was prepared by reducing the Schiff` base formed from chitosan and salicylaldehyde. The chitosan derivative was crosslinked and applied for adsorption of 2，4-chlorophenol. The structure of the crosslinked product was characterized with FTIR. The effects of absorption time，pH value，the concentration of 2，4-chlorophenol and amount of modified chitosan on the adsorption efficiency of 2,4-chlorophenol were studied. The experimental results indicated that the modified chitosan were insoluble in water，acidic and basic solution. In the solution of pH 7，the adsorption of 2,4-dichlorophenol reaches to 128.2 mg/g in 2 hours.

中图分类号:

O 636.1

辛梅华;谢英;李明春.

新型改性壳聚糖的制备及其对2,4–二氯苯酚的吸附

[J]. 化工进展.

XIN Meihua;XIE Ying;LI Mingchun.

Preparation of N-salicyl chitosan and application for adsorption of 2,4-chlorophenol

[J]. Chemical Industry and Engineering Progree.

[1]	程萌萌，辛梅华，李明春，李璇. 季铵化-N-(4-咪唑甲基)壳聚糖的制备及其胶束形成[J]. 化工进展, 2012, 31(04): 861-865.
[2]	姚雪罗学刚. 不同分子量魔芋葡甘聚糖与聚丙烯酸互穿网络凝胶作为药 [J]. 化工进展, 0, (): 0-0.