1. Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain (UCLouvain), Place Louis Pasteur, 1, Louvain-la-Neuve, Belgium
2. Centre of Water Technology (WATEC) and Department of Biological and Chemical Engineering, Aarhus University, Universitetsbyen 36, 8000 Aarhus C, Denmark
3. Nanotechnology Research Center, Sultan Qaboos University, P.O Box 17, Al Khoud, Muscat, PC 123, Oman
4. Chemistry Department, Faculty of Science, Fayoum University, 63514, Egypt
5. Petroleum and Chemical Engineering Department, Sultan Qaboos University, P.O Box 17, Al Khoud, Muscat, PC 123, Oman
6. Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan
7. Joint Institute of Chemical Research (FFMiEN), Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Str., 117198 Moscow, Russia
8. National Research Tomsk Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russia
9. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China