Synthesis of Different TiO$_{2}$ Nanostructures and Their Physical Properties
T. Hoseinzadeh1, Z. Ghorannevis2, M. Ghoranneviss1**, M. K. Salem1, A. H. Sari1
1Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran 2Department of Physics, Karaj Branch, Islamic Azad University, Karaj, Iran
Abstract：Titanium dioxide (TiO$_{2}$) nanosheet, nanorod and nanotubes are synthesized using chemical vapor deposition (CVD) and anodizing processes. TiO$_{2}$ nanosheets are grown on Ti foil which is coated with Au catalyst in CVD, TiO$_{2}$ nanorods are synthesized on treated Ti foil with HCl by CVD, and TiO$_{2}$ nanotubes are prepared by the three-step anodization method. Scanning electron microscopy shows the final TiO$_{2}$ structures prepared using three processes with three different morphologies of nanosheet, nanorod and nanotube. X-ray diffraction verifies the presence of TiO$_{2}$. TiO$_{2}$ sheets and rods are crystalized in rutile phase, and TiO$_{2}$ tubes after annealing turn into the anatase crystal phase. The optical investigations carried out by diffuse reflection spectroscopy reveal that the morphology of TiO$_{2}$ nanostructures influencing their optical response and band gap energy of TiO$_{2}$ is changed for different TiO$_{2}$ nanostructures.
(Structure of nanowires and nanorods (long, free or loosely attached, quantum wires and quantum rods, but not gate-isolated embedded quantum wires))
引用本文:
. [J]. 中国物理快报, 2017, 34(11): 116101-.
T. Hoseinzadeh, Z. Ghorannevis, M. Ghoranneviss, M. K. Salem, A. H. Sari. Synthesis of Different TiO$_{2}$ Nanostructures and Their Physical Properties. Chin. Phys. Lett., 2017, 34(11): 116101-.
2017, Vol. 34 
