Speaker
Mr
Mpheleki Lupiwana
(University of Fort Hare)
Description
Abstract
In this work, we present a simple electrochemical approach to obtain large-area free-standing TiO2 nanotube (TNT) membranes, via anodic oxidation of pure Ti metal sheets. The highly ordered vertically oriented TNTs were characterized by SEM-EDS, XRD, CRM and AFM. SEM-EDS analysis confirms the presence of Ti and O-species in the as-prepared free-standing TNTs layer in significant amount. CRM has confirmed the presence of only Anatase phase TiO2 with Raman vibration modes at 144.37 cm-1, 199.04 cm-1, 399.67 cm-1, 516.16 cm-1 and 639.29 cm-1. The intensity of XRD peaks increases with the increase in heat treatment and better crystallinity occurs at higher temperatures. SEM and AFM analysis has revealed the presence of porous structure on the fabricated membranes. The study focused on the effect of annealing temperature on TNTs crystalline structure. Results showed that smooth surface and high aspect ratio TNTs were successfully fabricated.
Main supervisor (name and email)<br>and his / her institution
Prof Edson Meyer
EMeyer@ufh.ac.za
University of Fort Hare, Fort Hare Institute of Technology
Apply to be<br> considered for a student <br> award (Yes / No)?
Yes
Level for award<br> (Hons, MSc, <br> PhD, N/A)?
MSc
Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
Y
Primary author
Mr
Mpheleki Lupiwana
(University of Fort Hare)
Co-authors
Dr
David Katwire
(Chemistry department, University of Fort Hare, Private Bag X1314, Alice, 5700, Republic of South Africa)
Prof.
Edson Meyer
(Fort Hare Institute of Technology (FHIT), University of Fort Hare, Private Bag X1314, Alice, 5700, Republic of South Africa)
Dr
Raymond Taziwa
(Fort Hare Institute of Technology (FHIT), University of Fort Hare, Private Bag X1314, Alice, 5700, Republic of South Africa)
