Abstract Molybdenum oxide layers were formed by anodization of the Mo metallic foil in a water/ethylene glycol-based electrolyte containing fluoride ions. The as-prepared, amorphous samples were annealed in air at different temperatures in a range from 100 °C to 700 °C. The crystal phase and morphology of anodized and annealed MoO3 layers were investigated using X-ray diffraction, Raman spectroscopy, and scanning electron microscopy. The photoactivity of obtained materials was tested during a photocatalytic process of methylene blue (MB) decomposition. The increase of annealing temperature led to the production of films characterized by improved photocatalytic properties, with maximum photocatalytic efficiency observed for MoO3 annealed at 600 °C. The studies on the use of MoO3 as a photoelectrocatalyst for degradation of dye were performed. Furthermore, the photocatalytic activity of the MoO3 annealed at 600 °C was investigated during a photodegradation of diclofenac acting as a model pharmaceutical compound.

中文翻译：

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Mo/MoO3层形貌和晶体结构对光催化降解水体有机污染物的影响

摘要 氧化钼层是通过在含有氟离子的水/乙二醇基电解液中对钼金属箔进行阳极氧化而形成的。所制备的无定形样品在空气中在 100 °C 至 700 °C 范围内的不同温度下退火。使用 X 射线衍射、拉曼光谱和扫描电子显微镜研究了阳极氧化和退火的 MoO3 层的晶相和形态。在亚甲蓝 (MB) 分解的光催化过程中测试了所得材料的光活性。退火温度的增加导致了具有改善的光催化性能的薄膜的产生，观察到在 600°C 退火的 MoO3 具有最大的光催化效率。进行了使用 MoO3 作为光电催化剂降解染料的研究。