Effect of Applied Voltage on the Formation of TiO2 Nanotube on Titanium Substrate using Anodizing Process

Document Type : Original Article

Authors

Advanced Materials Engineering Research Center, Karaj Branch ,Islamic Azad University, Karaj, Iran

Abstract

In the anodizing process of active materials such as titanium, various parameters such as pH, temperature, applied voltage and time, electrolyte composition, etc. affect the formation of the oxide layer during anodising process. In this study, commercial pure titanium as substrate was used to evaluate the effect of voltage and anodizing process on titanium oxide (TiO2). Nanotubes obtained in 1% HF electrolyte from 10 to 30 volts at 60 to 120 minutes. According to field emission scanning electron microscopy studies, nanotube structure of titanium oxide was observed and the diameter and length of nanotubes increase with increasing anode process voltage, and nanotubes become non-uniform and irregular with increasing anode process voltage. Uniform nanotubes with a size of 27 to 32 nm were obtained at a voltage of 10 volts for 60 and 120 minutes. And by increasing the voltage of the anodizing process to 30 volts, a porous structure is formed

Keywords


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