Water-compatible surface imprinting of 'Saccharin sodium' on silica surface for selective recognition and detection in aqueous solution

文献类型： 外文期刊

第一作者： Zhao, Song

作者： Zhao, Song;Yang, Xin;Zhao, Haitian;Dong, Aijun;Wang, Jing;Zhang, Min;Huang, Weiwei;Zhao, Song;Wang, Jing

作者机构：

关键词： Molecularly imprinted polymer;Saccharin sodium;Aqueous;Detection

期刊名称：TALANTA （ 影响因子：6.057； 五年影响因子：5.386 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： In this work, a saccharin sodium imprinted nanoparticles composite material has been successfully synthesized in aqueous solution. This molecular imprinted material has promising practical utility in the detection of saccharin sodium. First, we synthesized SiO2 nanoparticles, followed by the modification of functional amino group. Then we used functionalized SiO2@NH2 as the cores, saccharin sodium as the template, acrylic acid (AA) as the functional monomer and ammonium persulphate (APS) as the initiator. Molecularly imprinted nanoparticles (MIPs) were synthesized by surface-imprinted polymerization under airtight tubes at 60 degrees C for 12 h. MIPs were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and thermal gravimetric analysis (TGA). The binding experiments were shown to have relatively high adsorption capacity (8.965 mg g(-1)) and selective recognition ability over structurally related compounds. Therefore, MIPs provide a sensitive and selective approach and offer the potential to become a new key for the detection of saccharin sodium. (C) 2015 Elsevier B.V. All rights reserved.

分类号： O65

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