Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (4): 472-480.DOI: 10.11944/j.issn.1000-0518.2015.04.140254

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Preparation and Adsorption Properties of Novel Magnetic Nonylphenol Molecularly Imprinted Nanocomposite Material Based on Multiwalled Carbon Nanotubes

YIN Yulia, LONG Fanga, RAO Weia, ZHANG Zhaohuia, b, *, YAN Lianga   

  1. aCollege of Chemistry and Chemical Engineering,Jishou University,Jishou,Hu'nan 416000,China
    bState Key Laboratory of Chemo/Biosensing and Chemometrics,Hu'nan University,Changsha 410082,China
  • Received:2014-07-21 Published:2015-04-10 Online:2015-04-10
  • Contact: Corresponding author:ZHANG Zhaohui, professor; Tel/Fax:0743-8563911; E-mzail:zhaohuizhang77@163.com; Research interests:imprinted chromatographic analysis and electrochemical analysis
  • Supported by:

    Supported by the National Natural Science Foundation of China (No.21005030, No.21267010), the University Research Projects for Graduate Students of Jishou University (No.14JDY071)

Abstract:

A novel magnetic nonylphenol molecularly imprinted composite extraction materials(MWNTs@Fe3O4-MIPs) was prepared based on multiwalled carbon nanotubes(MWNTs) using nonylphenol(NP) as the template, methacrylic acid(MAA) as the functional monomer and ethylene glycol dimethacrylate(EGDMA) as the cross-linker. The MWNTs@Fe3O4-MIPs were characterized by scanning electron microscopy(SEM), Fourier-transform infrared(FT-IR) analysis and vibrating sample magnetometer(VSM). The results show that a thermally stable magnetic imprinted layer with the thickness of 60~70 nm was coated steadily on the MWNTs surface. Adsorption performance of the MWNTs@Fe3O4-MIPs was investigated by magnetic solid phase extraction(M-SPE) and high-performance liquid chromatography(HPLC) technology. The results indicate that the MWNTs@Fe3O4-MIPs possessed higher selectivity towards nonylphenol(NP) with the maximum adsorption capacity of 38.46 mg/g. This magnetic molecularly imprinted composite material combining with HPLC technology is successfully applied to the separation and the enrichment of nonylphenol(NP) in environmental water samples.

 

Key words: molecularly imprinted, magnetic multiwalled carbon nanotubes, nonylphenol, magnetic solid phase extraction

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