Synthesis and characterization of zeolite Y via ultrasonic method

Zeolites and related materials (molecular sieves) have gained enormous importance in many industrial applications, particularly in selective adsorption, catalysis and ion exchange processes [1]. Among them, Zeolite Y is applied extensively for fluid catalytic cracking, hydrocracking, and petrochemical synthesis. Although mesopores Y has been prepared by special templating techniques [2, 3] dealumination treatment by steaming and acid leaching is still main method to prepare mesopores zeolite Y [4, 5]. In the recent years, microwave irradiation and sonochemical assisted techniques have been reported as a promising method to reduce the synthesis duration of zeolites and mesoporous silicas materials [6]. Ultrasonic irradiation has been proven as a potential tool for generating novel materials like various inorganic materials and fine ceramic powders [7]. For preparation of nano materials, sonochemical methods can lead to homogeneous nucleation and a substantial reduction in crystallization time at room temperature compared to conventional chemical methods [8]. In this paper an efficient ultrasonic procedure for the synthesis of zeolite Y is reported, in which the crystallization temperature is lower and synthesis time is shortened sharply. The physicochemical properties of the resulting sample was characterized using FT-IR (Fourier transform infrared), XRD (X-ray diffraction), and SEM (Scanning microscopy electron).