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


One-dimensional (10) nanostructured titania such as nanowires, nanorod and nanotubes have attractedconsiderable attention recently due to their unique physical properties and their potential application in waterphotoelectrolysis, photocatalysis, gas sensing, and photovoltaic. In this work, a simple anodisation method has beendeveloped to fabricate titania nanotubes in 1M Na2S04 containing various amount of NH4F. The dimension of the titaniananotube produced depend on tlle electrochemical process parameter: composition of the electrolyte, pH of theelectrolyte and time of anodisation. As for this paper, the effect of fluoride content and anodisation time on theformation of titania nanotube was discussed in detaiL The nanotubes formed were analyzed by field emission scanningelectron microscope (FESEM) and X-Ray diffraction (XRO). The minimum fluoride content that is required to formnice well ordered nanotube for sample anodized for 30 minutes is O.3g whereas for 120 minutes is O.lg.Keywords: titania nanotube, fluoride, anodizationPACS: 61.46.Fg. S. Sreekantan, L. M. Hung, Z. Lockman, Z. A. Ahmad and A. F. Mohd NoorSchool of Materials & Mineral Resource Engineering, Universiti Sains Malaysia14300, Nibong Tebal, Seberang Perai Selatan, Malaysia