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


One-dimensional (10) 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 Na2S04 containing various amount of NH4F. The dimension of the titania
nanotube produced depend on tlle 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 (XRO). The minimum fluoride content that is required to form
nice well ordered nanotube for sample anodized for 30 minutes is O.3g whereas for 120 minutes is O.lg.
Keywords: titania nanotube, fluoride, anodizationS. Sreekantan, L. M. Hung, Z. Lockman, Z. A. Ahmad and A. F. Mohd Noor
School of Materials & Mineral Resource Engineering, Universiti Sains Malaysia
14300, Nibong Tebal, Seberang Perai Selatan, Malaysia