Kompozitní materiály na bázi grafen – vrstevnaté podvojné hydroxidy

Abstract

This bachelor's thesis deals with a synthesis of three double layered hydroxides, namely magnesium(II)-aluminium(III), zinc(II)-aluminium(III) and cobalt(II)-aluminium(III) hydroxide, graphenenoxide and their mutual composites to achieve a combination of their mechanical and chemical proporties. Synthesis of these composites was made using three different methods. It is about rehydration of the calcined layered hydroxide using memory effect and a direct synthesis performed via mutual coprecipitation of divalent and trivalent metals´ salts in the presence of grapheneoxide and sodium carbonate and without this carbonate respectively. Sorptive abilities of the products obtained were compared with respect to phosphate and copper(II) ions adsorption. All of the synthesised product wer analyzed using X-ray diffraction, infrared spectroscopy, and Raman's spectroscopy.