1. Research & Post Graduate Department of Chemistry; St. Joseph's College (Autonomous); Devagiri, Calicut 673 008 India
2. Center for Advanced Materials; Qatar University; P.O. Box 2713 Doha Qatar
3. Mechanical and Industrial Engineering Department; Qatar University; P.O. Box 2713 Doha Qatar
4. School of Chemical Sciences; Mahatma Gandhi University; Kottayam 686 560 India