1. School of Chemistry, University of Hyderabad, Hyderabad 500 046, India
2. River Rejuvenation Division, Central Water and Power Research Station, Pune411 024, Maharashtra, India
3. Department of Applied Sciences and Humanities, National Institute of Advanced Manufacturing Technology, Ranchi 834 003, Jharkhand, India
4. Centre for Energy & Alternative Fuels, Vels University, Chennai 600 117, Tamil Nadu, India