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首页> 外文期刊>Environmental Science & Technology >Removal of Estrogenic Pollutants from Contaminated Water Using Molecularly Imprinted Polymers
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Removal of Estrogenic Pollutants from Contaminated Water Using Molecularly Imprinted Polymers

机译：使用分子印迹聚合物从污染水中去除雌激素污染物

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摘要

A synthetic molecularly imprinted polymer (MIP) sorbent for estrogenic compounds was prepared using a noncovalent imprinting technique.MIP microspheres sized from 1 to 2 mum were synthesized in acetonitrile by using alpha-estradiol as the template,acrylamide as the functional monomer,and trimethylpropanol trimethacrylate as the cross-linker.When compared with the nonimprinted polymer (NIP),the MIP showed outstanding affinity toward alpha-estradiol in aqueous solution with a binding site capacity (B_(max)) of 380 nmol mg~(-1) MIP,imprinting effect of 35,and a dissociation constant (K_d) of 38 muM.The MIP exhibited significant binding affinity toward other related estrogenic compounds such as beta-estradiol,diethylstilbestrol,estriol,and estrone,suggesting that this material may be appropriate for treating a complex mixture of estrogenic pollutants.The feasibility of removing estrogenic compounds from environmental water by the MIP was demonstrated using lake water spiked with alpha-estradiol.In addition,the MIP reusability without any deterioration in performance was demonstrated for at least five repeated cycles.
机译：采用非共价印迹技术制备了用于雌激素化合物的分子印迹聚合物（MIP）吸附剂。以α-雌二醇为模板，丙烯酰胺为功能单体，三甲基丙醇三甲基丙烯酸酯在乙腈中合成了尺寸为1-2um的MIP微球。与非印迹聚合物（NIP）相比，MIP对水溶液中的α-雌二醇具有出色的亲和力，其结合位点容量（B_（max））为380 nmol mg〜（-1）MIP，印迹效应为35，解离常数（K_d）为38μM。MIP对其他相关雌激素化合物（如β-雌二醇，二乙基雌二醇，雌三醇和雌酮）表现出显着的结合亲和力，这表明该材料可能适用于治疗雌激素污染物的复杂混合物。使用掺有α-雌激素的湖水，证明了通过MIP从环境水中去除雌激素化合物的可行性。此外，在至少五个重复循环中证明了MIP的可重复使用性，而性能没有任何下降。

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  • 来源
    《Environmental Science & Technology》 |2005年第22期|p.8958-8962|共5页
  • 作者

    ZIHUI MENG; WILFRED CHEN; ASHOK MULCHANDANI;

  • 作者单位

    Department of Chemical and Environmental Engineering,University of California,Riverside,California 92521;

    Department of Chemical and Environmental Engineering,University of California,Riverside,California 92521;

    Department of Chemical and Environmental Engineering,University of California,Riverside,California 92521;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境化学;
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