Abstract
Zeolite synthesis has been achieved by alkaline treatment of a local clay, pyrophyllite. The chemical, textural and structural characteristics of the modified clay were evaluated and compared to those of the raw clay. The samples were characterized by X-ray fluorescence, nitrogen adsorption–desorption studies, X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and thermoanalysis (TG–DSC). The pyrophyllite was converted to porous hydroxysodalite (HS), nearly pure, which has a surface area of 19.56 $$\hbox {m}^{2}\,\hbox {g}^{-1}$$ with a spherical structure and cubic system.
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