The Synthesis and Characterization of Titania Nanotubes Formed at Various Anodisation Time

One-dimensional (1D) nanostructured titania such as nanowires, nanorod and nanotubes have attracted considerable attention recently due to their unique physical properties and their potential application in water photoelectrolysis, photocatalysis, gas sensing, and photovoltaic. In this work, a simple anodisation method has been developed to fabricate titania nanotubes in 1M Na2SO4 containing various amount of NH4F. The dimension of the titania nanotube produced depend on the electrochemical process parameter: composition of the electrolyte, pH of the electrolyte and time of anodisation. As for this paper, the effect of fluoride content and anodisation time on the formation of titania nanotube was discussed in detail. The nanotubes formed were analyzed by field emission scanning electron microscope (FESEM) and X-Ray diffraction (XRD). The minimum fluoride content that is required to form nice well ordered nanotube for sample anodized for 30 minutes is 0.3g whereas for 120 minutes is 0.1g.