Citation: WANG Yue, WANG Chao-Feng, ZHAO Wen-Chang, LIU Xue-Yi, FENG Yun-Hao, ZHAO Yu-Bo, Kaidiriye·Setiwalidi, GAO Rui-Xia. Preparation and Recognition Characters of Daisy Flower-like Lightweight Magnetic Surface Molecularly Imprinted Polymers for Estradiol[J]. Chinese Journal of Analytical Chemistry, ;2021, 49(11): 1908-1918. doi: 10.19756/j.issn.0253-3820.210549 shu

Preparation and Recognition Characters of Daisy Flower-like Lightweight Magnetic Surface Molecularly Imprinted Polymers for Estradiol

1.
School of Chemistry, Xi'an Jiaotong University, Xi'an 710049, China;
2.
Health Science Center, Xi'an Jiaotong University, Xi'an 710049, China

Corresponding author: GAO Rui-Xia, ruixiagao@mail.xjtu.edu.cn
Received Date: 7 June 2021
Revised Date: 11 September 2021

Fund Project: Supported by the Natural Science Basic Research Project of Shaanxi Province, China (Nos.2020JM-066, 2020JQ-019).

Novel flower-like estradiol lightweight magnetic surface molecularly imprinted polymers (FL-MMIPs) were prepared for the selective adsorption of estradiol (E2) using aniline (AN) as functional monomer, ammonium persulfate (APS) as initiator, E2 as template molecule, E44 epoxy as protective layer, and etched magnetic nanomaterials (E-Fe₃O₄) as carriers by surface molecularly imprinting, fixed template, and etching techniques. The prepared molecularly imprinted polymers were characterized by transmission electron microscopy (TEM), scanning electron microscope (SEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and vibrating sample magnetometer (VSM). The results showed that the imprinted layer of AN was successfully coated on the surface of FL-MMIPs, and the materials had uniform particle size, stable crystal structure, and good superparamagnetism. The adsorption properties of the materials were investigated by kinetic adsorption, isothermal adsorption, selective adsorption, reusability and reproducibility experiments. In addition, the adsorption capacity and imprinting factor of the nanomaterials were 30.46 mg/g and 2.44, respectively. The nanomaterials showed fast mass transfer rate (20 min) and good reusability (the adsorption efficiency was 96.8% after 8 cycles). This study provided a new method for determination of E2 in environmental water.
- Magnetic separation,
- Lightweight surface molecularly imprinted polymer,
- Estradiol,
- Selective adsorption
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation and Recognition Characters of Daisy Flower-like Lightweight Magnetic Surface Molecularly Imprinted Polymers for Estradiol

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com