| 静电纺丝法制备铁酸锌中空纤维及其磁学性能 |
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| 引用本文： | 朱福良,陈元锋,程永亮,朱玉庆,阎兴斌.静电纺丝法制备铁酸锌中空纤维及其磁学性能[J].物理化学学报,2012,28(5):1265-1268. |
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| 作者姓名： | 朱福良 陈元锋 程永亮 朱玉庆 阎兴斌 |
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| 作者单位： | 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 |
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| 基金项目： | 甘肃省自然科学基金，国家自然科学基金 |
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| 摘 要： | 以锌盐、铁盐和聚乙烯吡咯烷酮(PVP)为原料,通过静电纺丝法先制备PVP/硝酸盐复合纤维,这些复合纤维以5℃·min-1的升温速率加热到500℃并保温3h,最终得到铁酸锌(ZnFe2O4)中空纤维.通过X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)以及振动样品磁强计(VSM)等分析手段对中空纤维的晶体结构、形貌和磁学性能进行了研究.结果显示,ZnFe2O4中空纤维属于尖晶石结构,高温处理后仍能保持一维结构,纤维直径在200-400nm之间,纤维壁由大小为25nm的颗粒堆积而成.室温磁化结果显示制备的ZnFe2O4中空纤维具有超顺磁性,在10kOe的磁化强度为2.03emu·g-1.
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| 关 键 词： | 纤维技术 ZnFe2O4 中空纤维 纳米颗粒 磁学性能 |
| 收稿时间： | 2011-11-10 |
| 修稿时间： | 2012-02-29 |
Fabrication and Magnetic Properties of Electrospun Zinc Ferrite Hollow Fibers |
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| ZHU Fu-Liang
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CHEN Yuan-Feng
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CHENG Yong-Liang
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ZHU Yu-Qing
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YAN Xing-Bin.Fabrication and Magnetic Properties of Electrospun Zinc Ferrite Hollow Fibers[J].Acta Physico-Chimica Sinica,2012,28(5):1265-1268. |
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| Authors: | ZHU Fu-Liang CHEN Yuan-Feng CHENG Yong-Liang ZHU Yu-Qing YAN Xing-Bin |
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| Institution: | 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 |
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| Abstract: | Zinc ferrite(ZnFe 2 O 4)hollow fibers have been fabricated by annealing electrospun polyvinylpyrrolidone(PVP)/nitrate salt composite nanofibers at 500℃ for 3 h with a heating rate of 5℃· 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 ZnFe 2 O 4 hollow fibers reveal a superparamagnetic behavior and a magnetization value of 2.03 emu·g-1 at 10 kOe. |
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| Keywords: | Fiber technology ZnFe2O4 Hollow fiber Nanoparticle Magnetic property |
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