1. Department of Chemistry, Dr. Sudhir Chandra Sur Degree Engineering College, JIS Group of College, 540 Dum Dum Road, Kolkata 700074, India
2. Department of Civil and Chemical Engineering, University of Tennessee at Chattanooga, Chattanooga, Tennessee 37403, USA
3. Department of Physics, Jadavpur University, 88, Raja S. C. Mallick Road, Kolkata 700032, India