静电纺丝技术制备NiOZnTiO3TiO2同轴三层纳米电缆及其形成机制

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(CH₃COO)₂+PVP]-Zn(CH₃COO)₂+PVP]-Ti(OC₄H₉)₄+CH₃COOH+PVP] 前驱体复合电缆, 在600℃下将其进行热处理, 制备出了NiO-ZnTiO₃-TiO₂同轴三层纳米电缆。采用热重-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-ZnTiO₃-TiO₂ 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) nm; 壳层为TiO₂, 厚度大约为(70.747±7.373) nm。 

Synthesis and formation mechanism of NiO ZnTiO3 TiO2 coaxial trilayered nanocables by electrospinning

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 diffractometry(XRD),Fourier transform infrared spectroscopy(FTIR),scanning electron microscopy(SEM),and transmission electron microscopy(TEM).Formation mechanism of NiO-ZnTiO3-TiO2 coaxial 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.