The effect of anodizing parameters in anodizing process of pure titanium on morphology of titanium‌ dioxide nanotubes

Articles in Press

Document Type : Original Articles

Authors

• Nazanin Yazdanparast
• Faezeh Darvishian Haghiggi
• Mohsen Haddad sabzevar
• Sahar Mollazadeh Beidokhti

Department of Materials and Metallurgical Engineering, Faculty of Engineering, Ferdowsi University of mashhad, mashhad, Iran

10.22067/jmme.2025.92562.1196

Abstract

Nanoscale structures have recently attracted considerable attention due to their unique properties, particularly their excellent biocompatibility. Among these, titania nanotubes (TiO₂ NTs) are notable for their wide-ranging applications in fields such as biomedicine, catalysis, and energy. A highly effective method for fabricating these nanostructures is electrochemical anodization, which enables the direct in-situ formation of TiO₂ nanotubes on the titanium substrate. This technique offers the advantage of controlling nanotube morphology, including length and diameter, through simple adjustments of anodization parameters, making it both cost-effective and time-efficient. In this study, commercially pure titanium (Grade 2) was anodized using a standard two-electrode setup to investigate the influence of various parameters on nanotube formation. The effects of temperature, anodization time, surface preparation, cathode material, and electrolyte composition were systematically examined. Morphological analysis was performed using field emission scanning electron microscopy (FESEM), while elemental composition was determined using energy-dispersive X-ray spectroscopy (EDS). Results indicate that anodization conditions significantly impact the final morphology of the TiO₂ nanotubes. At 60 V, increasing the temperature accelerated nanotube dissolution, with severe degradation observed at 50 °C after 270 minutes. Fluoride ions in the electrolyte were identified as essential for nanotube formation. Additionally, extending the anodization time from 60 to 360 minutes increased the nanotube length from 12 μm to 47 μm and diameter from 50 nm to 120 nm. Overall, understanding the influence of these parameters provides a pathway for optimizing the anodization process to tailor TiO₂ nanotube structures for specific applications.

Keywords

• Electrochemical anodizing
• effect of temperature and time
• type of cathode and electrolyte
• pure titanium (grade2)
• effect of voltage
• morphology

Main Subjects

• Nanomaterials

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