1. Department of ChemistryIndian Institute of Science Education and Research (IISER) Tirupati- 517507 India
2. Environmental and Water Technology Center of InnovationNgee Ann Polytechnic Singapore 599489 Asia
3. LEPMI, UMR 5279, CNRS-Grenoble INP-Université de SavoieUniversité Joseph Fourier BP75 38402 Saint Martin d'Hères France
4. School of Materials Science and EngineeringNanyang Technological University Singapore 639798 Asia