The effect of the salt template on adsorptional and structural properties of montmorillonite clay

Abstract

For the first time, the template synthesis method has been used for controlling montmorillonite clay porous structure. Salts with varied hydration heats such as MgSO₄, Li₂SO₄, NiCl₂, RbNO₃, KCl, RbBr, have been used as templates. Their presence in swollen clay particles is accompanied by dehydration, leading to their interaction and formation of the structure having greater sorption capacity than acid-activated clay samples, its specific capacity being also increased several times. The main factors of the template effect on the improvement of montmorillonite clay structural parameters and ways of further development in this area, as well as properties of salt templates, destroying the solvent structure, and reasons for their low structure-forming ability, have been discussed.