Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (11): 2141.

• Articles • Previous Articles     Next Articles

Preparation and Adsorption Properties of p-Nitrophenol Imprinted Materials Based on Multi-walled Carbon Nanotubes Surface

ZHANG Hua-Bin1, ZHANG Zhao-Hui1,2*, HU Yu-Fang1, YANG Xiao1, NIE Li-Hua2   

  1. 1. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;
    2. State Key Laboratory of Chemo/Biosensing and Chemometrics, Changsha 410082, China
  • Received:2010-03-24 Online:2010-11-10 Published:2010-11-10
  • Contact: ZHANG Zhao-Hui. E-mail: zhaohuizhang77@hotmail.com
  • Supported by:

    湖南省自然科学基金(批准号: 08JJ4004)、湖南省科技计划项目(批准号: 2009FJ3009)、林产化工工程湖南省重点实验室开放基金(批准号: JDZ200903)、吉首大学研究生科研创新基金(批准号: JGY200901)和吉首大学校级课题基金(批准号: 09JDY007)资助.

Abstract: Novel molecularly imprinted polymers were prepared successfully by employing multi-walled carbon nanotubes(MWNT) as the supported matrix, grafting of L-phenylalanine on the MWNT surface as the binding site, p-nitrophenol as template, methacrylic acid(MAA) as functional monomer and ethyleneglycol dimethyacrylate(EGDMA) as cross-linker. The molecularly imprinted materials were characterized with infrared spectroscopy(IR) and scanning electron microscopy(SEM). The results show that a stable imprinted layer is grafted on the MWNT surface. The static adsorption experiments were also executed. A large adsorption capacity Qmax of 80.5 μmol/g and an excellent selectivity for the template of 2.5 were obtained. As solid-phase extraction adsorbents, the imprinted material was applied to study the dynamic adsorption of p-nitrophenol from a mixture of p-nitrophenol and other structural analogues. The results show that the imprinted materials can apply to the separation of p-nitrophenol from a mixture solution.

Key words: Multi-walled carbon nanotube, Imprinting, Nitrophenol, Adsorption

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