摘要
目的制备改性的壳聚糖(CTS),对其吸附氯酚的性能进行研究。方法通过戊二醛作为交联剂将壳聚糖进行改性,用红外光谱(FTIR)对改性后的壳聚糖进行了表征。考察了吸附时间、溶液pH值、氯酚浓度等因素对吸附的影响。结果改性CTS具有较好的抗酸碱性能;在pH6.5、吸附40min时对氯酚的吸附量最大;改性后的CTS吸附能力增加了13.8倍;且能再生和重复使用。结论经戊二醛交联后的壳聚糖是良好的氯酚吸附剂。
Objective To study the adsorption of 2,4-dichlorophenol of the modified chitosan.Methods A type of N-alkyl chitosan derivative was synthesized by using glutaraldehyde as a kind of crosslinker and characterized by FTIR.The effects of adsorption conditions,such as time,pH,the concentration of 2,4-dichlorophenol and the amount of the modified chitosan on the adsorption quantity of 2,4-dichlorophenol adsorpted were studied.Results The resistance on acid and alkaline of N-alkyl chitosan exhibited was good acid resistance.At pH 6.5,the adsorption of 2,4-dichlorophenol reached the maximum in 40 minutes.Adsorption capability of the modified chitosan was increased by 13.8-fold and it could be regenerated and reused.Conclusion The crosslinked chitosan had good adsorption capability for 2,4-dichlorophenol.
出处
《卫生研究》
CAS
CSCD
北大核心
2011年第6期698-701,共4页
Journal of Hygiene Research
基金
安徽省高校省级自然科学基金重点项目(No.KJ2008A084)
关键词
壳聚糖
戊二醛
氯酚
吸附
chitosan
glutaraldehyde
2
4-dichlorophenol
adsorption
