In this study, we synthesized WO3/TiO2 nanocomposites by incorporating WO3 nanoparticles (NPs) into TiO2- based coatings produced via plasma electrolytic oxidation (PEO) on pure Ti. We investigated their effectiveness for the photodegradation of methylene blue (MB) under visible light. We analyzed the morphology, chemical composition, and optical properties of the PEO coatings using various techniques, including scanning electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, UV–Vis diffuse reflectance, and photoluminescence spectroscopy.
