1. Nanomaterials & Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India
2. Department of Physics, National Institute of Technology, Tiruchirappalli 620015, India
3. Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
4. Department of Environmental Engineering & Science, Feng Chia University, Taichung 407, Taiwan
5. ENEA, Portici Research Center, Piazzale Enrico Fermi 1, 80055 Naples, Italy