Hydrothermal Synthesis of Self-Assembled-Microfibers with Rutile Single Crystal Titania Nanorods

Abstract

Single crystal rutile TiO2 microfibers have been synthesized by hydrothermal method using TiCl3 as titanium source. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM) investigations reveal that the microfibers with average diameter of 15 μm and length of 1~2 mm are self-assembled by single crystal TiO2 nanorods and well-dispersed. The bandgap Eg of microfibers is about 3.0 eV by UV-vis adsorption spectrum.