1. LaboratoryLaSCOM, University of Sfax, BP1171, 3000, Sfax, Tunisia
2. Department of Physics, College of Science, Qassim University, P. O. Box: 6644, 51452 Buraydah, Almolaydah, Saudi Arabia
3. GREENMAT, CESAM, Institute of Chemistry B6, University of Liège, 4000 Liège, Belgium
4. Department of Chemical Engineering, Engineering Faculty, Sivas Cumhuriyet University, 58140 Sivas, Turkey