文献类型：期刊文献

中文题名：多孔高胺基交联壳聚糖微球的制备和对有机染料吸附性能的研究

英文题名：Preparation of Cross-linked Chitosan Porous Microspheres with High-level Amidocyanogen and Their Adsorption for Dyestuff

作者：杨晓玲[1];张振[1];朱以华[1]

机构：[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室,上海200237

年份：2009

卷号：9

期号：S2

起止页码：31

中文期刊名：过程工程学报

外文期刊名：The Chinese Journal of Process Engineering

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目(编号:20676038);教育部科学技术研究重点资助项目(编号:107045)

语种：中文

中文关键词：壳聚糖;多孔微球;高氨基;交联;Sciff碱;吸附;染料废水

外文关键词：chitosan;porous microspheres;high-level amidocyanogen;cross-linking;microsphere;Sciff base;adsorption;dying wastewater

摘要：以液体石蜡为有机分散介质,环氧氯丙烷为交联剂,采用反相悬浮法制备交联壳聚糖微球,并研究了其对有机染料的吸附性能.壳聚糖分子中存在大量的胺基、羟基,对溶液中的金属离子和有机染料等有良好的吸附性能.交联后的壳聚糖,机械强度增加便于回收,电荷也更加集中提高了吸附能力.另外为了提高壳聚糖的吸附性能,在交联中添加适量的致孔剂聚乙二醇增加比表面积.结果显示,壳聚糖微球具有较好的单分散性,粒径为200~300μm;交联壳聚糖微球对有机染料的具有一定的吸附脱色性能,脱色率与废水的pH值,组分和用量密切相关.
Cross-linked chitosan porous microspheres were prepared with a suspension cross-linking involving olefin as dispersant and epoxy chloropropane as cross-linking agent.At the same time,their adsorption for organic dyestuff was studied.Several factors affecting the preparation and adsorption,such as the molecular weight and concentration of chitosan,pH value,reaction time,concentration of cross-linking agent,were examined.Meanwhile,for the ultimate purpose of improving the adsorption effect,proper poly(ethylene glycol) was added to produce more holes,consequently,the specific surface area was increased.The result showed that the cross-linked chitosan microspheres were well mono-dispersed with the diameters of 200~300 μm.And the dosage of chitosan microspheres,pH value and composition of the wastewater affected the adsorption performance of chitosan microspheres in dying wastewater treatment.