Sorpce vybraných látek na interkalovaném montmorillonitu

Abstract

Phyllosilicates are clay minerals with laminated st ructure and permanent negative charge on the layers´ surface, which can be used for sorption of cations or ion exchange reactions. For experiments the sodium form of montmorillonite and the form intercalated were used. Primarily hydrophilic nature of phylosilicates can be exchanged for hydrophobic one by intercalation with organic compounds. This enables their utilization as sorbents of organic substances. Presented thesis deals with adsorption of nitrobenzene, belonging to a group of hazardous industrial waste-water pollutants. Montmorillonite and its four intercalates were used as sorbents and confronted. Modified forms of montmorillonite were prepared by intercalation of three quatenary ammonium salts and silver ion into the structure of montmorillonite. The results show the intercalates sorbed mainly by their surface, pure montmorillonit sorbed mainly into the interlayer.