SAIP2015

Calibrating the 8000M Ball Miller Using Anatase and Rutile Titania Nanoparticles

30 Jun 2015, 16:10

1h 50m

Board: A.129

Poster Presentation Track A - Division for Physics of Condensed Matter and Materials Poster1

Speaker

Mr Olatunbosun Nubi (University of Limpopo)

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

Yes

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

No

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

Hons

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

Titanium dioxide nanopowders were synthesized using the sol-gel method and dried at 100^oC. Portions of the powder were annealed at 300^oC and 800^oC to obtain the anatase and rutile phases of TiO₂ respectively. The samples were then ball-milled for various time periods ranging from 1 hour up to 14 hours using the stainless steel vial set. X-ray diffraction characterization technique was performed on the samples in order to determine the crystallite sizes. The sizes of the anatase samples were found to increase slightly as milling time increased. On the other hand, the reduction in the crystallite sizes of the rutile powders with increasing milling time were observed to follow a 3^rd order polynomial trend. The results were used in constructing calibration functions for the 8000M ball miller.

Main supervisor (name and email)<br>and his / her institution

Nubi OO, olatunbosun.nubi@ul.ac.za, University of Limpopo