**Author details**

Omotola Babajide1,2\*, Leslie Petrik1 and Farouk Ameer1

\*Address all correspondence to: obabajide@uwc.ac.za

1 Environmental and Nano Sciences Research Group, Chemistry Department, University of the Western Cape, Bellville, Cape Town, South Africa

2 School of Sciences, Adeyemi University of Education, Ondo, Nigeria
