1. Qatar
Environment and Energy Research Institute, Hamad bin Khalifa University, Doha, Qatar
2. College
of Science and Engineering, Hamad Bin Khalifa University, Doha, Qatar
3. Department
of Chemistry, University at Buffalo, State University of New York, New York 14260-3000, United States
4. Department
of Chemistry, Physics and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States