Synthesis of magnetic molecularly imprinted polymer particles for selective adsorption and separation of dibenzothiophene

被引：92

作者：

Li, Hui ^{[1
]}

Xu, Wanzhen ^{[1
]}

Wang, Ningwei ^{[2
]}

Ma, Xuhai ^{[1
]}

Niu, Dandan ^{[3
]}

Jiang, Bo ^{[1
]}

Liu, Lukuan ^{[1
]}

Huang, Weihong ^{[1
]}

Yang, Wenming ^{[3
]}

Zhou, Zhiping ^{[3
]}

机构：

[1] Jiangsu Univ, Dept Environm, Zhenjiang 212013, Peoples R China

[2] Entry Exit Inspect Quarantine Bur, Zhenjiang 212000, Peoples R China

[3] Jiangsu Univ, Dept Mat Sci & Engn, Zhenjiang 212013, Peoples R China

来源：

MICROCHIMICA ACTA | 2012年 / 179卷 / 1-2期

关键词：

Adsorption; Dibenzothiophene; Fe3O4@SiO2@MIPs; Magnetic molecularly imprinted polymers; Selectivity; DEEP DESULFURIZATION; AQUEOUS-SOLUTION; EQUILIBRIUM; OXIDATION; CATALYST; DIESEL;

D O I：

10.1007/s00604-012-0873-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We report on the synthesis of magnetic molecularly imprinted polymers (m-MIPs) for the selective adsorption and separation of dibenzothiophene (DBT) from oil solution. The m-MIPs were characterized by Fourier transform infrared analysis, transmission electron microscopy, surface area and porosity analysis, and vibrating sample magnetometry. Batch mode adsorption studies were carried out to investigate the adsorption kinetics, adsorption isotherms and selective recognition. The adsorption kinetics were modeled with the pseudo-first-order and pseudo-second-order kinetics, and the adsorption isotherms were fitted with Langmuir and Freundlich models. The m-MIPs can selectively recognize DBT over similar compounds. Static adsorption experiments showed that the m-MIPs display excellent recognition capacity, selective affinity for DBT, and superparamagnetism in presence of an external magnetic field.

引用

页码：123 / 130

页数：8

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