1. SIMAD Laboratory, Institut Universitaire de Technologie, Université de Toulouse, Castres, France
2. Laboratory of Sciences of Materials and Environment, Sfax Faculty of Sciences, Soukra Road km 4, BP n 802-3038 Sfax, Tunisia
3. Tunisian Chemical Group Research Directorate ZI, BP72-6000-Gabes, Tunisia
4. Centre RAPSODEE, Université de Toulouse, Mines Albi, CNRS , Albi, France