第 46 卷第 1 期Vol. 46 No. 1
2016 年 2 月Feb 2016

所属栏目:功能材料

核壳型磁性表面分子印迹聚合物的制备及对罗丹明6G吸附性能研究
谢 进,赵海青,邓 健* (南华大学 化学化工学院,湖南 衡阳 421001)
摘 要:以罗丹明6G为模板分子,多巴胺和3-氨基苯硼酸为功能单体和交联剂,采用表面分子印迹技术,首次制备了对罗丹明6G具有优良吸附作用的核壳型磁性表面分子印迹聚合物。应用扫描电镜、透射电镜、红外光谱等对其进行表征,通过静态、动态和选择性吸附实验,研究了该分子印迹聚合物的识别选择性和吸附容量,并建立了固相萃取-分光光度法测定实际样品中痕量罗丹明6G的新方法,检测限为2.7 nmol/L,回收率为86.9%~105.0%。
关键词:罗丹明6G;磁性表面分子印迹聚合物;固相萃取;分光光度法
中图分类号:O631.3  文献标识码:A  文章编号:1009-9212(2016)01-0080-05
Preparation and Adsorption Characteristics of Core-shell Magnetic Surface Molecularly Imprinted Polymer for Rhodanmine 6G
XIE Jin, ZHAO Hai-qing, DENG Jian* (College of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China)
Abstract:A novel core-shell magnetic nano-adsorbent with surface molecularly imprinted polymer coating was fabricated by copolymerization of dopamine and m-aminophenylboronic acid which were used as both monomers and cross-linkers in the presence of template Rh6G. The resulting adsorbent was then fully characterized by scanning electron microscopy, transmission electron microscopy and Fourier transform infrared spectroscopy. The nano-adsorbent was successfully applied to solid phase extraction coupled with visible spectrophotometry for trace determination of Rh6G in real samples with a detection limit of 2.7 nmol/L. Spiked recoveries ranged from 86.9%~105.0%.
Key words:rhodamine 6G; magnetic surface molecularly imprinted polymer; solid phase extraction; visible spectrophotometry
基金项目: 湖南省科技厅项目(2013FJ3028),湖南省研究生科研创新项目(CX2010B378)。
作者简介:谢 进(1989-),男,湖南长沙人,硕士,研究方向:纳米材料(E-mail:waitxiejin@163.com)。
联 系 人:邓 健,教授,研究方向:电化学(E-mail:jdeng_usc@163.com)。
收稿日期:2015-12-30