2,4-二氯酚表面磁性分子印迹聚合微球合成及其吸附特性研究  

Study on the Preparation of Magnetic Surface Molecularly Imprinted Polymers and Their Adsorption Characteristics

作　　者：傅绪成[1,2] 张舰[1] 谢成根[1] 

机构地区：[1]皖西学院材料与化工学院,安徽六安237012 [2]仿生传感与检测技术省级实验室,安徽六安237012

出　　处：《皖西学院学报》2014年第2期59-63,共5页Journal of West Anhui University

基　　金：国家自然科学基金(21377099);安徽省自然科学基金(1208085QB19);安徽省科技计划项目(1206c0805031)资助

摘　　要：采用表面印迹技术制备了磁性分子印迹聚合物(Fe3O4@SiO2@MIPs),使用扫描电镜(SEM)、透射电镜(TEM)和红外光谱(FT-IR)对产物的结构进行了表征。通过吸附性能实验研究证实了制备的Fe3O4@SiO2@MIPs对目标分子2,4-二氯酚(2,4-DCP)具有快速的吸附动力学特征和较高的吸附容量;与非印迹聚合物(Fe3O4@SiO2@NIPs)比较,Fe3O4@SiO2@MIPs对2,4-DCP表现出显著的亲和性;吸附选择性实验表明,Fe3O4@SiO2@MIPs对2,4-DCP具有较强的特异结合性能。此外,5次的重复使用后,制备材料的吸附效率仍可达80%以上,说明该材料具有可重复使用性。This paper reports the preparation of magnetic surface-imprinted polymer,Fe3O4@SiO2@MIPs,for separating 2,4-DCP in the environmental water.The structures of the resulting composites were characterized by scanning electron microscopy（SEM）.Transmission electron microscope（TEM）and Fourier transform infrared（FT-IR）analysis.The adsorption experiments of Fe3O4@SiO2@MIPs for 2,4-DCP was demonstrated by equilibrium rebinding experiments,and the results show that the Fe3O4 @SiO2@MIPs have rapid adsorption dynamics process and high adsorption capacity for 2,4-DCP;when compared with the nonimprinted polymer（Fe3O4@SiO2@NIPs）,the Fe3O4@SiO2@MIPs showed outstanding and selective affinity toward 2,4-DCP; the removal efficiency of the Fe3O4@SiO2@MIPs were also above 80%after used five repeated cycles.

关 键 词：2 4-二氯酚 分子印迹 磁性 吸附 

分 类 号：TB302.2[一般工业技术—材料科学与工程]