1. Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz 613578-3151, Iran
2. Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), Tehran 14665-1998, Iran
3. Department of Civil and Environmental Engineering, University of Illinois, Urbana-Champaign, 205 N. Mathews Ave., Urbana, Illinois 61801, United States
4. Illinois State Geological Survey, 605 E Peabody Dr., Champaign, Illinois 61820, United States
5. Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Shiraz 71946-84334, Iran
6. Institute of Materials Science and Nanotechnology, Bilkent University UNAM, Ankara 06800, Turkey
7. College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, P.R. China