Synthesis and properties of core-shell magnetic molecular imprinted polymers

被引：63
作者：
Chang, Limin [1 ]
Chen, Shaona [1 ]
Li, Xin [2 ,3 ]
机构：
[1] Jilin Normal Univ, Sch Chem, Siping 136000, Peoples R China
[2] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China
[3] Harbin Inst Technol, Dept Chem, Harbin 150090, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 17期
基金：
中国国家自然科学基金;
关键词：
Molecularly imprinted polymers; Magnetic; Chlorinated phenols; Hybrid; SELECTIVE REMOVAL; NANOPARTICLES; RECOGNITION; MICROSPHERES; 2,4-DICHLOROPHENOL;
D O I：
10.1016/j.apsusc.2012.03.102
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A general fabricating protocol for the preparation of core-shell magnetic molecularly imprinted polymers (MIPs) for chlorinated phenols recognition is described. In this protocol, Fe3O4 magnetic nanoparticles were first prepared using the chemical co-precipitation method. Then, the obtained magnetic nanoparticles were coated with a silica shell through modified Stober method. Finally, MIP films were coated onto the surface of silica-modified magnetic nanoparticles by surface molecular imprinting technique. The resultant polymers showed a high saturation magnetization value (31.350 emu g(-1)), and short response time (30 s). Meanwhile, the as-synthesized magnetic MIPs showed an excellent recognition and selection properties toward imprinted molecule over structurally related compounds. (C) 2012 Elsevier B. V. All rights reserved.
引用
收藏
页码：6660 / 6664
页数：5
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