Synthesis of multiwall α-Fe2O3 hollow fibers via a centrifugal spinning technique

被引：32

作者：

Akia, Mandana ^{[1
]}

Mkhoyan, K. Andre ^{[2
]}

Lozano, Karen ^{[1
]}

机构：

[1] Univ Texas Rio Grande Valley, Dept Mech Engn, Edinburg, TX 78539 USA

[2] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

来源：

MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2019年 / 102卷

基金：

美国国家科学基金会;

关键词：

alpha-Fe2O3; Centrifugal spinning; Composite; Multiwall; Hollow fibers; NANOSTRUCTURES SYNTHESIS; CARBON NANOFIBERS; ANODE MATERIAL; ALPHA-FE; PERFORMANCE; FABRICATION; CORE; NANORODS;

D O I：

10.1016/j.msec.2019.04.085

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Hollow hematite (alpha-Fe2O3) fine fibers with multiwall structure were synthesized by utilizing a centrifugal spinning technique. Aqueous solutions of polyvinyl pyrrolidone and iron (III) nitrate nonahydrate were prepared and spun into fibers. The precursor fibers were heat treated at 650 degrees C to form iron oxide fibers. Scanning electron micrographs revealed the formation of iron oxide hollow fibers with multiwall structure with average wall thickness of 55 +/- 15 nm and outer fiber diameter of 852 +/- 86 nm. The formation of alpha-Fe2O3 was confirmed by X-ray diffraction analysis and the phase identification was verified by XRD pattern and transmission electron microscopy analysis. These hollow structure alpha-Fe2O3 fibers have promising uses in important biological processes and biomedical applications.

引用

页码：552 / 557

页数：6

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