Zhan Sihui, Chen Dairong, Jiao Xiuling, Liu Shusheng
Department of Chemistry, Shandong University, Jinan 250100, PR China.
J Colloid Interface Sci. 2007 Apr 1;308(1):265-70. doi: 10.1016/j.jcis.2006.12.026. Epub 2006 Dec 14.
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.
通过一种简便的溶胶-凝胶联合共电纺丝技术，以柠檬酸铁为前驱体，制备了长α-Fe₂O₃中空纤维，并通过在不同条件下进行还原和再氧化获得了α-Fe和γ-Fe₂O₃中空纤维。所制备的中空纤维外径为0.5-5微米，壁厚为200-800纳米。通过热重分析（TG）、傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）和拉曼技术对所得管状纤维进行了表征。此外，还研究了α-Fe和γ-Fe₂O₃中空纤维的磁性。
