Effect of Silica Source on the Hydrothermal Synthesis of ITQ-13 Zeolite

ITQ-13 zeolite was successfully synthesized using three silica sources,i.e.,tetraethylorthosilicate(TEOS),colloidal silica,and fumed silica,and was characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),BET surface area,and acidity by the adsorption of d3-acetonitrile.Characterization results showed that the ITQ-13 samples synthesized using colloidal silica and fumed silica possessed better crystallinity and larger crystals than those synthesized by the TEOS route.