Acta Phys. -Chim. Sin. ›› 2012, Vol. 28 ›› Issue (05): 1265-1268.doi: 10.3866/PKU.WHXB201202291

• PHYSICAL CHEMISTRY OF MATERIALS • Previous Articles     Next Articles

Fabrication and Magnetic Properties of Electrospun Zinc Ferrite Hollow Fibers

ZHU Fu-Liang1, CHEN Yuan-Feng1,2, CHENG Yong-Liang2, ZHU Yu-Qing1, YAN Xing-Bin2   

  1. 1. School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, P. R. China;
    2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
  • Received:2011-11-10 Revised:2012-02-20 Published:2012-04-26
  • Contact: ZHU Fu-Liang
  • Supported by:

    The project was supported by the Natural Science Foundation of Gansu Province, China (3ZS042-B25-029) and National Natural Science Foundation of China (51005225).

Abstract: Zinc ferrite (ZnFe2O4) hollow fibers have been fabricated by annealing electrospun polyvinylpyrrolidone (PVP)/nitrate salt composite nanofibers at 500 °C for 3 h with a heating rate of 5 °C· min-1. The composite fibers were initially prepared by electrospinning Zn, Fe salts, and PVP from solution. The structure, morphology, and magnetic properties were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and vibrating sample magnetometry (VSM). The XRD results indicate a spinel phase structure, while SEM and TEM reveal hollow fibers (200-400 nm in diameter) with walls consisting of packed 25 nm nanoparticles. Room temperature VSM of the ZnFe2O4 hollow fibers reveal a superparamagnetic behavior and a magnetization value of 2.03 emu·g-1 at 10 kOe.

Key words: Fiber technology, ZnFe2O4, Hollow fiber, Nanoparticle, Magnetic property


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