Preparation and Characterization of Poly(vinyl pyrrolidone)/Fe3O4 Composite Nanofibers

Abstract

Abstract: Poly(vinyl pyrrolidone)(PVP)/Fe₃O₄ composite nanofibers were successfully prepared by using electrospinning technique. The composite nanofibers were characterized by means of TEM(transmission electron microscopy), XRD(X-ray diffraction) and TGA(thermogravimetric analysis). Transmission electron microscope images of the PVP/Fe₃O₄ nanofibers show that the Fe₃O₄nanoparticles with a diameter about 10.5 nm were dispersed in PVP fiber matrices. The XRD results show that the particles in PVP fibers were indeed Fe₃O₄ nanoparticles. And the TGA of PVP/Fe₃O₄ nanofibers show that the content of Fe₃O₄ nanoparticles in the composite was about 36.8%(mass fraction). The PVP/Fe₃O₄ nanofibers were found to be superparamagnetic. The hysteresis loop at room temperature showed a high saturated magnetization(M_s=15.1 emu/g) and a low coercive force(μ_c=0).

Key words: Electrospinning, Composite nanofiber, Fe₃O₄ nanoparticles, Poly(vinyl pyrrolidone)

CLC Number:

O631

TrendMD:

LI Xiang, ZHAO Yi-Yang, LU Xiao-Feng, WANG Hai-Ying, WANG Ce. Preparation and Characterization of Poly(vinyl pyrrolidone)/Fe₃O₄ Composite Nanofibers[J]. Chem. J. Chinese Universities, doi: .

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Preparation and Characterization of Poly(vinyl pyrrolidone)/Fe₃O₄ Composite Nanofibers

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