Acknowledgments
The authors are thankful to Sophisticated Analytical Instrumentation Facility (SAIF), Punjab University, Chandigarh (for spectral study), Central Salt and Marine Chemical Research Institute (CSMCRI) Bhavnagar (for SEM, TEM and EDX studies), UGC-DAE Consortium for Scientific Research, DAVV, Indore (for powder XRD). All the authors have no conflict of interest.