1. Department of Chemical Engineering, VFSTR (deemed to be) University, Vignan's Foundation for Science, Technology and Research, Vadlamudi, India;
2. Department of Chemistry, GITAM deemed to be University, Hyderabad, India;
3. Department of Sciences and Humanities, VFSTR (deemed to be) University, Vignan's Foundation for Science, Technology and Research, Vadlamudi, India;
4. School of Chemistry & Physics, College of Agriculture, Engineering & Science, Westville Campus, University of KwaZulu-Natal, Durban, South Africa