1. Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India
2. Department of Physics, Mahila Mahavidyalaya, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
3. Department of Applied and Interdisciplinary Sciences, IICISST, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India