Synthesis and characterization of isomorphously zirconium substituted Mobil Five (MFI) zeolite

Highlights: ► In situ modification of the MFI zeolite by incorporation of Zr in various ratios. ► The samples were characterized by XRD, FT-IR, TGA, UV–vis (DRS), SAA and SEM. ► The amount of the Zr incorporated in the product is determined by EDX analysis. ► The incorporation of Zr is confirmed by XRD, FT-IR, UV–vis (DRS) and TGA. - Abstract: A series of zirconium doped Mobil Five (MFI) zeolites were synthesized hydrothermally with silicon to aluminium plus zirconium ratios of 100 and 200 and with different Al to Zr ratios. The MFI zeolite phase was identified by XRD and FT-IR analysis. UV–vis (DRS) and TG analyses suggested isomorphous substitution of Zr in the framework of MFI structure. The specific surface area, pore volume and pore size of the synthesized samples were investigated by the nitrogen adsorption method, while morphology was examined using scanning electron microscopy.