期刊论文

中文

应用化学

1000-0518

2018

35

5

600-608

10.11944/j.issn.1000-0518.2018.05.170138

人社部留学回国人员择优资助重点项目（人社厅函[2016]176号） 湖南省重点实验室专项基金（2014FJ3011,2016XGJSYB01,2015TP4021-5） 湖南省普通高校“十二五”专业综合改革试点项目（2012-266）

本校为第一机构

羟基苯甲酸类化合物用途广泛,极性较强,在复杂水溶液体系中这些类似物的分离纯化与分析非常困难.本文以磁性Fe_3O_4纳米颗粒为载体,没食子酸(GA)为模板分子,制备了磁性表面分子印迹聚合物(MIP).利用透射电子显微镜、红外光谱、磁强测定等检测手段对MIP进行了结构表征.并对其吸附性能进行研究,比较了该MIP对GA及其它3种结构类似物的吸附性能差异.结果表明,制备的以GA为模板的磁性分子印迹聚合物为核壳球形结构,键合牢固,对GA的吸附动力学符合准二级动力学方程模型,吸附过程属于Langmuir单分子层吸附.该聚合物对GA表现出优异的选择性识别能力,其吸附量(318 K时37.736 mg /g)远远高于结构类似物.该...

Hydroxybenzoic acid compounds are used widely and have strong polarity. The separation, purification and analysis of their analogues in complex aqueous solution are very difficult. In this paper, magnetic surface molecularly imprinted polymer(MIP) was prepared using nano magnetic Fe_3O_4 as the carrier and gallic acid (GA) as the template molecule,and characterized by transmission electron microscopy, infrared spectroscopy and magnetic intensity measurement. Then its adsorption properties and adsorptive selectivity were studied by the static adsorption and dynamic adsorption experiments to com...