Photocatalytic Properties of Zn- and Cd-Containing Oxide Layers on Titanium Formed by Plasma Electrolytic Oxidation

摘要

Element and phase compositions, surface morphology, and photocatalytic activity of oxide coatings on titanium formed by the method of plasma electrolytic oxidation in sulfate and phosphate electrolytes with and without addition of cadmium and zinc salts have been investigated. The coatings were studied by means of the X-ray spectral method, X-ray diffraction analysis, and electron microscopy. The photocatalytic activity of oxide layers depends on their element and phase composition and surface morphology. The highest photocatalytic activity in the reaction of degradation of Methylene Blue is demonstrated by titanium oxide coatings doped with cadmium.