| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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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
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| Cite this article: |
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T. Hoseinzadeh, Z. Ghorannevis, M. Ghoranneviss et al 2017 Chin. Phys. Lett. 34 116101 |
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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.
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Received: 11 August 2017
Published: 25 October 2017
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| PACS: |
61.05.-a
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(Techniques for structure determination)
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61.46.Np
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(Structure of nanotubes (hollow nanowires))
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61.46.Km
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(Structure of nanowires and nanorods (long, free or loosely attached, quantum wires and quantum rods, but not gate-isolated embedded quantum wires))
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