1. Department of Applied Chemistry Cochin University of Science and Technology Kerala 682022 India
2. Department of Chemistry NSS Hindu College Changanaserry Kerala 686102 India
3. Chemical Engineering Faculty Engineering College University of Tehran P.O. Box 14155-6455 Tehran 14155-6455 Iran
4. Department of Chemistry Sree Narayana College Punalur Kollam 691305 India
5. Department of Physics University of Zabol Zabol 538-98615 Iran
6. State Key Lab of High-Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 PR China
7. Department of Chemistry International Hellenic University Kavala 65404 Greece