Synthesis and Characterization of ZnO Nanotubes by Hydrothermal Method

Abstract- zinc oxide nanotubes were prepared by a hydrothermal method using zinc nitrate as a precursor. The synthesized nanotubes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR) and their optical properties were characterized using UV-visible spectroscopy. The XRD analysis confirmed that the ZnO nanotubes have the hexagonal wurtzite structure. UV-vis absorption spectrum showed a typical spectrum of pure ZnO nanotubes. According to TEM analysis, the mean length and average outer diameter of the ZnO NTs were about 2.4 μm and 200 nm, respectively. Index terms- ZnO nanotubes, Hydrothermal, TEM, SE