ystallinity of the as-synthesized Y zeolite was studied by means of a STOE STAD-MP x-ray diffractometer (XRD) using Cu (Kα) at 40 kV and 30 mA.Morphology and size of the nanozeolite spheres, the as-synthesized nanozeolites and commercial NaY zeolite (i.e. CPA100) were studied by means of a Philips XL 30 scanning electron microscope (SEM) which was equipped with an energy dispersive x-ray analysis system (EDX) to measure the Si/Al ratio of the zeolitic samples.