Selective removal of estrogenic compounds by molecular imprinted polymer (MIP)

Water Research
Zhang Zhongbo, Jiangyong Hu

Abstract

A molecular imprinted polymer (MIP) was synthesized and used for selective removal of estrogenic compounds. The study on the mass balance of template as well as template leakage revealed that almost all the template could be extracted out of the polymer and no template leakage could be detected in aqueous solution. In acetonitrile, MIP could adsorb more E2 than non-template imprinted polymer (NIP) by more than 3.5 times. In aqueous solution, MIP showed reduced selectivity for E2 with a 10% difference in adsorption capacity between MIP and NIP. With an initial E1, E2, EE2 and BPA concentration of 4 microM in aqueous solution and adsorbent concentrations of 0.01-0.5mg/mL, the maximum adsorption capacities of MIP for E1, E2, EE2 and BPA were 92.8, 95.8, 115.4 and 57.4 micromol/g polymer, respectively. According to the adsorption isotherms for E1, E2, EE2 and BPA, a physical adsorption model containing three types of binding sites, namely, specific binding site, semi-specific binding site and non-specific binding site, was proposed to interpret the adsorption performance of MIP.

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Citations

Aug 10, 2011·International Journal of Analytical Chemistry·Yu Yang, Edward P C Lai
Oct 5, 2014·Environmental Science and Pollution Research International·Dan-Lian HuangChao Huang
May 14, 2009·Journal of Environmental Monitoring : JEM·Charles S Wong, Sherri L MacLeod
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Feb 26, 2013·Environmental Science and Pollution Research International·Chao-meng DaiShu-guang Liu
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Sep 30, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Lei HuWenlong Zhang
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Mar 29, 2019·Environmental Technology·Ali DerazshamshirAdil Denizli
Dec 6, 2011·Chemical Communications : Chem Comm·Xiantao ShenHeqing Tang
Jun 15, 2019·Critical Reviews in Analytical Chemistry·Anna Kubiak, Magdalena Biesaga
Mar 20, 2012·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Z B Zhang, J Y Hu
Feb 13, 2021·Membranes·Zahra NiavaraniAgnes Schulze

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