2021 prosiding SNK ainun SYNTHESIS COMPOSITE Zn-Fe3O4/WO3 AND THEIR APPLICATION IN PHOTOCATALYST
Abstract
Synthesis of Fe3O4-ZnO composite material was prepared and characterized using instrumentation and its
application to photocatalytically degradation of methylene blue has been carried out. The stages of this
research are the first, the manufacture of Fe3O4 by the coprecipitation method, the second is the manufacture
of ZnO by the coprecipitation method and the last is the manufacture of Fe3O4-ZnO through a solid-solid
reaction then characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) and
followed by the degradation process of methylene blue. The results of the XRD showed there are a structure
of Zn- Fe3O4/WO3 composites. In the SEM analysis, it can be observed that particle sizes of Zn- Fe3O4/WO3
was not uniform and tend to clump together and aglomerated. Optimization results on the degradation of
methylene blue based on the variations of the type of catalyst used show that Zn-Fe3O4/WO3 has better
activity than Fe3O4, ZnO and WO3. Then the variation of light sources shows that UV-Vis rays produce a
better % degradation value