Synthesis and characterization of micro-meso structure NaY zeolite in the presence of Nano-ZnO as a guest molecule

In this work, NaY zeolite/ZnO nanocomposites with different amounts of ZnO were prepared. The nanocomposites were characterized by different methods such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy, scanning electron microscope, Energy-Dispersive X-ray analysis, Diffuse reflectance spectroscopy (DRS) surface area (BET), NH3-TPD, Fluorescence microscopy and thermal gravimetric analysis. The results of BET confirmed the micro-meso structure of NaY zeolite in which low angle XRD shows that mesophase is not completely ordered in the composite. DRS result shows the decreasing band gap in the ZnO. In addition, Si/Al ratio decreasing to lower than two which increasing in the acidity confirmed by NH3-TPD. Therefore, can be said, a good zeolitic photocatalyst with high acidity and micro-meso structure was prepared in the mild condition, which was useful for degradation of the pollution in out coming works.