1. Department of Chemistry, National Institute of Technology, Warangal, Telangana 506004, India
2. Centre for Advanced Materials, National Institute of Technology, Warangal, Telangana 506004, India
3. Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science and Nanotechnology, Yogi Vemana University, Kadapa, Andhra Pradesh 516005, India