1. Department of Chemical Engineering Technology, Yanbu Industrial College, Royal Commission for Jubail and Yanbu, P.O. Box 30436, Yanbu Industrial City 21 477, Kingdom of Saudi Arabia,
2. Research and Post Graduate Department of Chemistry, St.Berchmans College, Changanassery 686 101, Kerala, India
3. School of Engineering, University College of Boras, Boras 50190, Sweden
4. Indian Institute of Space Science and Technology (ST), ISRO PO, Thiruvananthapuram 695 022, Kerala, India