Characteristic and Preparation of TiO<sub>2</sub>/PVP Nanofiber Using Electrospinning Technique

Abstract

In this work, titanium dioxide (TiO2) ceramic nanofiber was prepared by homemade electrospinning technique. A homogeneous solution of titanium isopropoxide in polyvinyl pyrrolidone (PVP) was prepared. The thermal behavior of the fiber was characterized by differential thermal analyzer (DTA) and thermogravimetric analysis (TGA) to obtain the calcination temperature range. Fourier transform infrared spectroscopy (FTIR) was employed to analyze the chemical structures of the TiO2/PVP composite nanofibers. The structural phase formations were characterized by x-ray diffraction technique (XRD). It has been found that the single phase of anatase and rutile were obtained at the calcinations temperature at 500 and 900 °C, respectively. The microstructure was characterized by a scanning electron microscope technique (SEM). The diameter of titanium oxide nanofibers were in the range of 70 nm to 300 nm and decrease as the calcination temperature increasing. The results indicated the effect of calcination temperature on the crystalline phase and morphology of the nanofiber.