Formation Of Titanium Dioxide Nanotubes Via Two-Step Anodization

Fadhil, Fatin Nur Syahirah (2019) Formation Of Titanium Dioxide Nanotubes Via Two-Step Anodization. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

TiO2 nanotubes are synthesized on titanium foil via anodization process. In order to enhance the properties of the titania nanotubes developed, two-steps anodization is conducted. Several parameters were investigated which inclusive of the effect of anodizing time and anodizing voltage on the morphological and structural properties of titanium dioxide nanotubes manufactured through two-steps anodization. The titanium foil was cleaned thoroughly beforehand and has gone through electrolysis where it was used as the anode and carbon rod acted as the counter electrode. The electrolyte used for both anodization was ethylene glycol containing 0.3g of ammonium fluoride (NH4F). Two-steps anodization process focuses on the growth of titania nanotubes through the aid of concaves left by the removal of nanotubes produced via the first step anodization. Ultrasonic treatment method was used in the removal part. The morphological and structural properties of the nanotubes produced were observed and studied by using assorted characterization methods such field emission scanning electron microscopy (FESEM), XRay Diffraction (XRD) and Raman Spectroscopy technique. The product of this study was tested in order to evaluate its application properties specifically in photocatalysis application. The growth of titanium dioxide produced via two-steps anodization in length and diameter was expected to be directly proportional to the anodizing time and voltage.

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