静电纺丝技术制备NiO-ZnTi03-Ti02同轴三层纳米电缆及其形成机制

摘要

采用静电纺丝技术，通过改进实验装置，在最佳的纺丝条件下制备了[Ni（CH3C00）2＋PVP]-[Zn（CH3C00）2＋PVP]-FTi（OC4H9）4＋CH3C00H＋PVP]前驱体复合电缆，在600℃下将其进行热处理，制备出了NiO-ZnTiO3-Ti02同轴三层纳米电缆。采用热重一差热（TG-DTA）、X射线衍射（XRD）、傅里叶变换红外光谱（FTIR）、扫描电子显微镜（sEM）和透射电子显微镜（TEM）等分析技术对样品进行了表征。对NiO-ZrlTiO3-TiQ同轴三层纳米电缆的形成机制进行了讨论。结果表明，所得产物为NiO-ZnTiO3-TiO2同轴三层纳米电缆。芯层为NiO，直径大约为（42．024±4．405）nm；中间层为ZnTiO3，厚度大约为（55．385±7．681）niTl；壳层为TiO2，厚度大约为（70．747±7．373）nm。%[Ni（CH3COO）2 ＋PVP]-[Zn（CH3COO）2 ＋PVP]-[Ti（OC4H9）4 ＋CH3COOH＋PVP]composite cables had been fabricated through modified electrospinning equipment. NiO - ZnTiO3 - TiO2 coaxial trilayered nanocables were obtained by the calcination of the relevant composite cables at 600℃. The samples were characterized by use of thermogravimetric-differential thermal analysis （TG-DTA）, X-ray diffraetometry （XRD）, Fourier transform infrared spectroscopy （FTIR）, scanning electron microscopy （SEM）, and transmission electron microscopy （TEM）. Formation mechanism of NiO-ZnTiO3-TiO2coaxial trilayered nanocables was preliminarily proposed. The results show that the samples are NiO-ZnTiO3-TiO2 coaxial trilayered nanocables. The core layer is NiO, and its diameter is about （42. 024±4. 405） nm. The middle layer is ZnTiO3 , and its thickness is about （55. 385±7. 681） nm. The outer layer is TiO2, the thickness is about （70. 747±7. 373） nm.