乙酰化β-环糊精聚合物微球对α-萘酚的吸附性能研究  

Preparation of acetylated β-cyclodextrin polymer microspheres and it's adsorption study

作　　者：秦蓓[1] 杨宽[1] 

机构地区：[1]西安医学院药学院,陕西西安710021

出　　处：《应用化工》2016年第4期645-648,共4页Applied Chemical Industry

基　　金：国家重点基础研究开发计划(973计划)(2013CB531705);陕西省科技统筹创新工程-主导型产业技术项目(2011KTCL03-0);陕西省大学生创新创业训练计划项目(1659);西安医学院学科建设经费资助

摘　　要：以β-环糊精(β-CD)为原料,环氧氯丙烷(EPI)为交联剂,采用反相乳液聚合法制备得到了β-环糊精聚合物微球(β-CDPM),通过乙酰化修饰,得到了新型的aβ-CDPM,用SEM对其形态进行了表征。研究了aβ-CDPM对水溶液中α-萘酚的吸附动力学和吸附热力学。结果表明,aβ-CDPM对α-萘酚的吸附能力显著优于β-CDPM,且aβ-CDPM对α-萘酚的吸附符合准二级动力学方程,吸附等温线很好地符合Langmuir和Frenchlick等温方程。aβ-CDPM作为吸附剂可循环使用,重复4次后去除率仍可达68%。β-Cyclodextrin polymer microspheres（ β-CDPM） were synthesized using β-cyclodextrin（ β-CD） as monomers and epoxy chloropropane（ EPI） as cross-linkers by inverse emulsion polymerization.And the acetylated β-CDPM（ αβ-CDPM） was obtained by acetylation reaction. The surface morphology was detected by SEM. Thermodynamic and kinetic characteristics for adsorption of α-naphthol on αβ-CDPM were investigated. The results showed that the adsorption capacity of α-naphthol on αβ-CDPM was superior to that of β-CDPM. The adsorption for αβ-CDPM fitted with the second-order dynamic equations,and adsorption isotherm well conform to the Langmuir and Frenchlick isothermal equation. As adsorbent,αβ-CDPM can be recycled since the removal rate can reach 68% even after 4 times repeated adsorption.

关 键 词：乙酰化 aβ-CDPM 吸附 Α-萘酚 

分 类 号：TQ316.343[化学工程—高聚物工业]