Morphological and Structural Study on Titania Nanotubes Formation by Difference Voltage

Abstract:

Titania nanotube arrays were fabricated by anodic oxidation of the titanium foil in an electrolyte containing F^- ion. In here, will be discuss on effect of difference anodization voltage to the morphologycal, structural and optical properties of the TiO₂ nanotubes. All of these properties were investigated by FESEM, XRD and UV-Vis spectroscopy. The results showed that, the vertical oriented TiO₂ nanotube arrays were obtained at 20 V for 30 min in electrolyte which contained 0.7 g NH₄F and 100 mL NaSO_4. The diameter size of the nanotube is average at 70 nm, the length of the tube is about 1.6 μm and the wall thickness is average at 10 nm. XRD results shows that there are no significant changes of Ti peaks from 4 V to 20 V, but at 28 V some of the Ti peaks were disappeared due to the collapsed of nanotube structure toward compact oxide of TiO₂. The spectral reflectivity were shifted at wavelength of 569 nm with average percentage of transmittance is about 60 % for as-anodized sample.

• Periodical: Advanced Materials Research (Volume 701)
• Pages: 184-187
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.701.184
• Online since: May 2013
• Authors: Zafirah Usaili, Nur Aimi Jani, Saifollah Abdullah
• Keywords: Morphological, Structural, Titania Nanotubes

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