1. Qatar
Environment and Energy Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar
2. Center
of Research Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
3. Department
of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
4. Department
of Physics, National University of Uzbekistan, Tashkent, Uzbekistan