SAIP2015

Synthesis and characterisation of mechano-chemically synthesised Zinc Oxide nanoparticles using ball milling

30 Jun 2015, 16:10

1h 50m

Board: A.185

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

Speakers

Prof. Erasmus Rammutla (University of Limpopo) Ms MF Manamela (University of Limpopo)

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)?

N/A

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

No

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>

Zinc oxide (ZnO) nanoparticles were mechano-chemically prepared from the commercial micro-sized ZnO powders using high energy ball milling. The as-purchased ZnO powder was ball milled using steel balls and vials at different time intervals between 1 and 12 hrs. The structural and optical modifications induced in the as synthesized samples were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL). XRD and SEM show a gradual decrease in particle size on increasing the milling time (tm). A new band at around 367 nm is revealed by the PL results and its intensity is found to increase linearly with decreasing particle size. Studies of the effects of indium (In) doping on the structural and optical properties of ball milled ZnO are currently underway.

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

No

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

Rammutla KE (Erasmus.rammutla@ul.ac.za)