1. Islamic Azad University Department of Chemical Engineering, Robat Karim Branch 37616‐16461 Robat Karim Iran
2. Materials and Energy Research Center Department of Nanotechnology and Advanced Materials 14155‐4777 Karaj Iran
3. Islamic Azad University Department of Chemical Engineering, Marvdasht Branch Marvdasht Iran
4. The University of Texas at Arlington Department of Civil Engineering 76019 Arlington TX USA