A STRUCTURAL CHARACTERIZATION OF MoO3 MATERIAL PREPARED USING THREE DIFFERENT METHODS

Tóm tắt

In this work, we study a semiconductor-based photocatalyst MoO3 synthesized using three simple techniques, including as-prepared, hydrothermal and microwave-assisted methods. The obtained samples were characterized using X-ray diffraction (XRD), and Raman spectroscopy. We found a better crystallinity in the nanoparticles synthesized by the microwave-assisted method in comparison to those synthesized by the other methods. From this starting result, we chose the microwave-assisted method as a favored one to further investigate the effect of annealed temperatures on the phase formation. In addition, by using the correlation method, we predicted the Raman active modes of α-MoO3. The results are in good agreement with those obtained by experiments for the same system