Facile fabrication of long alpha-Fe(2)O(3), alpha-Fe and gamma-Fe(2)O(3) hollow fibers using sol-gel combined co-electrospinning technology.
Long alpha-Fe(2)O(3) hollow fibers have been prepared through a facile sol-gel combined co-electrospinning technique using ferric citrate as precursor, and alpha-Fe and gamma-Fe(2)O(3) hollow fibers have been obtained by reduction and reoxidation at different conditions. The outer diameter of the as-prepared hollow fibers is 0.5-5 microm with wall thickness of 200-800 nm. The obtained tubular fibers were characterized by thermal gravimetric (TG), FT-IR spectra, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and Raman techniques. In addition, magnetic properties of alpha-Fe and gamma-Fe(2)O(3) hollow fibers have also been investigated.
Zhan
Sihui
S
Department of Chemistry, Shandong University, Jinan 250100, PR China.
Chen
Dairong
D
Jiao
Xiuling
X
Liu
Shusheng
S