Abstract

Uniform multilayered titanium oxide (TiO2) nanotubes are synthesized using three-step anodization process to investigate an effect of different electrolyte concentrations on their physical properties such as structural, morphological and optical properties. X-ray diffractometer analysis together with selected area electron diffraction pattern revealed the crystalized structure of the synthesized tubes. To study the morphology of the tubes, scanning electron microscopy was used, which showed that the wall thicknesses and the diameters of the tubes affected by electrolyte solution concentrations. Moreover, optical studies performed by diffuse reflection spectra suggested that band gap of the TiO2 nanotubes did not change significantly with the electrolyte solution concentrations. Optimum electrolyte solution concentration was obtained to synthesize the uniform crystalized TiO2 nanotubes with suitable diameter, wall thickness and optical properties.

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