高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (9): 2227.

• 研究论文 • 上一篇    

β-环糊精功能化聚丙烯腈纳米纤维的制备及对亚甲基蓝的吸附性能β-环糊精功能化聚丙烯腈纳米纤维的制备及对亚甲基蓝的吸附性能

张旺,陈铭,刁国旺   

  1. 扬州大学化学化工学院, 扬州 225002
  • 收稿日期:2011-03-04 修回日期:2011-06-07 出版日期:2011-09-10 发布日期:2011-08-11
  • 通讯作者: 刁国旺 E-mail:gwdiao@yzu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 20773107, 20973151, 20901065)资助.

Preparation of β-Cyclodextrin Functionalized Polyacrylonitrile Nanofibers and Its Adsorption for Methylene Blue

ZHANG Wang, CHEN Ming, DIAO Guo-Wang*   

  1. College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
  • Received:2011-03-04 Revised:2011-06-07 Online:2011-09-10 Published:2011-08-11
  • Contact: DIAO Guo-Wang E-mail:gwdiao@yzu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20773107, 20973151, 20901065)资助.

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摘要： 以N,N-二甲基甲酰胺(DMF)为溶剂, 利用静电纺丝法制备了聚丙烯腈(PAN)/β-环糊精(β-CD)纳米纤维. 通过场发射扫描电镜、红外光谱和粉末XRD对纳米纤维进行了表征, 并检测了纺丝溶液的电导率和黏度. 结果表明, β-CD的添加量可以改善纳米纤维的形貌, 固定在纤维上的β-CD保留了空腔结构, 为其在纳米纤维中发挥超分子特性提供了可能. 通过紫外-可见光谱法研究了PAN/β-CD纤维对亚甲基蓝(MB)溶液的吸附性能. 结果表明, 纳米纤维中的β-CD显著提高了PAN/β-CD纤维对MB的吸附能力, 使其在吸附分离、电化学传感器及药物控制释放等领域具有潜在的应用价值.

关键词: 静电纺丝, 聚丙烯腈, β-环糊精, 吸附

Abstract: A novel Polyacrylonitrile/β-cyclodextrin (PAN/β-CD) nanofibrous membrane (PAN/β-CDnfm) for molecular adsorption was successfully prepared by electrospinning from a homogeneous solution of β-CD and PAN in DMF. PAN/β-CDnfm with the different weight % of β-CD (0 wt.%, 10 wt.%, 30 wt.%, 60 wt.%) was characterized by scanning electronic microscopy, Fourier transform infrared spectroscopy and X-ray powder diffraction. The SEM results showed that the increasing concentration of β-CD in the fibrous membrane improved the fibrous morphology. The viscosity and conductivity of electrospinning solutions were influenced by the addition of β-CD. The studies of FTIR and XRD were proved that β-CD molecules were combined with the PAN nanofibers. In the adsorption study, methylene blue (MB) was used as a model molecule. By UV-vis spectra, PAN/β-CDnfm showed the efficient adsorption ability for MB via the formation of inclusion complexes with β-CD, which indicated that the β-CD functionalized nanofibers may be utilized in purification/separation processes, electrochemical sensor, drug delivery, and so on.

Key words: Electrospinning, Polyacrylonitrile, β-Cyclodextrin, Adsorption

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