1. UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk Ridge, P.O. Box 392, Pretoria 0002, South Africa
2. Nanosciences African Network (NANOAFNET)-Materials Research Department, iThemba LABORATORIES-National Research Foundation, P.O. Box 722, Somerset West 7129, Western Cape Province, South Africa
3. Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Florida, Johannesburg 1709, South Africa
4. Environmental Research Center, Department of Applied Chemistry, Razi University, Taq-e Bostan, 6714414971, Kermanshah, Iran
5. Department of Chemical Engineering, University of South Africa, Private Bag X6 Florida, Johannesburg 1709, South Africa
6. Water Utilisation and Environmental Engineering Division, Department of Chemical Engineering, University of Pretoria, Pretoria 0002, South Africa