应用化学
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应用化学 ›› 2015, Vol. 32 ›› Issue (4): 472-480.DOI: 10.11944/j.issn.1000-0518.2015.04.140254

• 研究论文 • 上一篇    下一篇

磁性碳纳米管表面新型壬基酚印迹纳米复合材料制备及吸附性能

尹玉立a, 龙芳a, 饶维a, 张朝晖a, b*, 闫亮a   

  1. a吉首大学化学化工学院 湖南 吉首 416000
    b湖南大学化学生物传感与计量国家重点实验室 长沙 410082
  • 收稿日期:2014-07-21 出版日期:2015-04-10 发布日期:2015-04-10
  • 通讯作者: 张朝晖,教授; Tel/Fax:0743-8563911; E-mail:zhaohuizhang77@163.com; 研究方向:印迹色谱分析和电化学分析 E-mail:zhaohuizhang77@163.com
  • 基金资助:
    国家自然科学基金(21005030和21267010)和吉首大学校级课题(14JDY071)资助

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 Online:2015-04-10 Published: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 E-mail:zhaohuizhang77@163.com
  • 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)

摘要:

采用聚苯胺包覆的磁性多壁碳纳米管为载体,以壬基酚(NP)为模板分子,甲基丙烯酸(MAA)为功能单体,乙二醇二甲基丙烯酸酯(EGDMA)为交联剂制备新型磁性壬基酚印迹复合萃取材料。 采用扫描电子显微镜(SEM)、红外光谱(FT-IR)和样品振动磁强计(VSM)等技术手段对该磁性印迹复合材料进行表征和分析,结果表明,在磁性碳纳米管表面成功接枝厚度为60~70 nm的印迹聚合层。 采用高效液相色谱(HPLC)技术对该印迹复合材料的吸附性能进行探讨,结果表明,该磁性印迹复合材料对壬基酚具有特异性吸附性能,最大吸附量为38.46 mg/g。 结合HPLC检测技术,该磁性印迹复合材料成功用于分离富集饮用水中的壬基酚。

关键词: 分子印迹, 磁性碳纳米管, 壬基酚, 磁固相萃取

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

中图分类号: 

 Chinese Journal of Applied Chemistry
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