**Author details**

Kgomotso N.G. Mtshatsheni\*, Bobby E. Naidoo and Augustine E. Ofomaja Department of Chemistry, Vaal University of Technology, Vanderbijlpark, South Africa

\*Address all correspondence to: kgomotsom@vut.ac.za

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
