1. aDepartment of Chemistry, C. V. Raman Global University, Bhubaneswar, Odisha 752054, India
2. bMaterials Chemistry Department, CSIR–Institute of Minerals and Materials Technology, Bhubaneswar, Odisha 751013, India
3. cAcademy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
4. cAcademy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India bikash@immt.res.in