2021 JKM wahyuni PREPARATION OF WO3-ZnO COMPOSITES BY SOLID STATE REACTION AND THEIR CHARACTERIZATION

Abstract

The preparation of WO3-ZnO composites through the solid state reaction has been conducted. The research stages included mixing WO3 and ZnO solids with the addition of polyvinyl alcohol, drying, sieving and heating. WO3 and ZnO solids before being composited and WO3-ZnO composites were characterized using X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) instrument, and test the surface area using methylene blue solution. The results of XRD characterization showed that the samples containing WO3 and ZnO also contained ZnWO4 diffraction peaks. In SEM analysis, it can be observed that the size and shape of the particles was not homogeneous. WO3-ZnO composite has a surface area of 110.7596 m2/g