1. Department of Chemistry, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
2. Thermodynamics-Materials-Separations Research Group, Department of Chemical Engineering, Mangosuthu University of Technology, Umlazi, Durban 4031, South Africa
3. Institute of Chemistry, Rio de Janeiro State University, São Francisco Xavier St., 524, PHLC, 310, 20500-013 Rio de Janeiro, Brazil
4. Departamento de Ingeniería Industrial, Facultad de Ingeniería, Universidad Católica de la Santísima Concepción, Alonso de Ribera 2850, Concepción 4090541, Chile
5. Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
6. Department of Chemistry, Southern University and A&M College, Baton Rouge, Louisiana 70813, United States