• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >A convenient separation method for di(2-ethylhexyl)phthalate by novel superparamagnetic molecularly imprinted polymers
【24h】

A convenient separation method for di(2-ethylhexyl)phthalate by novel superparamagnetic molecularly imprinted polymers

机译：一种新型超顺磁性分子印迹聚合物分离邻苯二甲酸二（2-乙基己基）酯的简便方法

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Through a surface molecular imprinting technique and coating superparamagnetic Fe _(3) O _(4) nanoparticles with molecularly imprinted polymers (MIPs), a novel magnetic molecularly imprinted polymer (MMIP) was successfully fabricated for the convenient separation of di(2-ethylhexyl)phthalate (DEHP) with methacrylic acid as functional monomer, ethylene glycol dimethacrylate as cross linker and 2,2-azobis(isobutyronitrile) as initiator. A magnetic non-molecularly imprinted polymer (MNIP) was also prepared for comparison purposes. The morphology structure and the magnetic properties of MMIP were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectrometry (FT-IR), X-ray diffraction, vibrating sample magnetometry (VSM) and thermo gravimetric analysis (TGA). The adsorption properties of MMIP and MNIP were investigated by static and dynamic adsorption experiments. The results show that the diameter of the synthesized MMIP microspheres is about 300–500 nm with good dispersibility in solvent. The prepared MMIP shows superparamagnetic properties with the maximum saturation magnetic intensity of 43.97 emu g ~(?1) , and it can be conveniently separated using an external magnetic field. Compared with MNIP, MMIP has a higher adsorption capacity and better adsorption selectivity for DEHP, and the imprinting factor reaches 3.012. The regeneration adsorption experiment illuminates that the novel MMIP can be reused with good separation efficiency.
机译：通过表面分子印迹技术，并用分子印迹聚合物（MIPs）涂覆超顺磁性Fe _（3）O _（4）纳米粒子，成功地制备了一种新型的磁性分子印迹聚合物（MMIP），用于方便地分离二（2-乙基己基）以甲基丙烯酸为功能单体，乙二醇二甲基丙烯酸酯为交联剂，2,2-偶氮二（异丁腈）为引发剂的邻苯二甲酸酯）。还制备了磁性非分子印迹聚合物（MNIP）以用于比较。通过透射电子显微镜（TEM），傅立叶变换红外光谱（FT-IR），X射线衍射，振动样品磁强法（VSM）和热重分析（TGA）对MMIP的形态结构和磁性能进行了表征。通过静态和动态吸附实验研究了MMIP和MNIP的吸附性能。结果表明，合成的MMIP微球的直径约为300–500 nm，在溶剂中具有良好的分散性。制备的MMIP具有超顺磁性，最大饱和磁强度为43.97 emu g〜（？1），并且可以使用外部磁场方便地分离。与MNIP相比，MMIP对DEHP具有更高的吸附容量和更好的吸附选择性，印迹因子达到3.012。再生吸附实验表明，新型MMIP具有很好的分离效率，可以重复使用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号