
Keywords: خاک رس; Pillared clays; Montmorillonite; Polyhedral silsesquioxanes; Acid activation; Catalysis; Isopropanol dehydration; POSS; polyhedral oligosilsesquioxanes; Na-T; natural Texas montmorillonite STx-1; HT; acid-activated STx-1; EDAPTMOS; 3-(2-aminoethylamino) p