Removal of Estrogenic Pollutants from Contaminated Water Using Molecularly Imprinted Polymers
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- 作者：Zihui Meng ; Wilfred Chen ; and Ashok Mulchandani
- 刊名：Environmental Science & Technology
- 出版年：2005
- 出版时间：November 15, 2005
- 年：2005
- 卷：39
- 期：22
- 页码：8958 - 8962
- 全文大小：142K
- 年卷期：v.39,no.22(November 15, 2005)
- ISSN：1520-5851
文摘
A synthetic molecularly imprinted polymer (MIP) sorbentfor estrogenic compounds was prepared using a noncovalentimprinting technique. MIP microspheres sized from 1 to2 
m were synthesized in acetonitrile by using 
-estradiolas 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 -estradiol inaqueous solution with a binding site capacity (Bmax) of380 nmol mg-1 MIP, imprinting effect of 35, and a dissociationconstant (Kd) of 38 M. The MIP exhibited significantbinding affinity toward other related estrogenic compoundssuch as 
-estradiol, diethylstilbestrol, estriol, and estrone,suggesting that this material may be appropriate fortreating a complex mixture of estrogenic pollutants. Thefeasibility of removing estrogenic compounds fromenvironmental water by the MIP was demonstrated usinglake water spiked with -estradiol. In addition, the MIPreusability without any deterioration in performance wasdemonstrated for at least five repeated cycles.
m were synthesized in acetonitrile by using -estradiolas 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 -estradiol inaqueous solution with a binding site capacity (Bmax) of380 nmol mg-1 MIP, imprinting effect of 35, and a dissociationconstant (Kd) of 38 M. The MIP exhibited significantbinding affinity toward other related estrogenic compoundssuch as -estradiol, diethylstilbestrol, estriol, and estrone,suggesting that this material may be appropriate fortreating a complex mixture of estrogenic pollutants. Thefeasibility of removing estrogenic compounds fromenvironmental water by the MIP was demonstrated usinglake water spiked with -estradiol. In addition, the MIPreusability without any deterioration in performance wasdemonstrated for at least five repeated cycles.