Abstract Bi2-xLuxWO6 (0 ≤ x ≤ 1) photocatalysts were prepared by solid-state reaction at 1000 °C. The pristine Bi2WO6 (BWO) possesses the best photocatalytic Rhodamine B degradation performance under UV-light illumination. BWO reaches an efficiency of nearly 90% in 160 min, the photocatalytic efficiency decreases with substituting Bi with Lu which is a fact attributable to the specific surfaces which decrease when the composition x increases due to the increasing crystallite sizes (around 2 µm) of the Bi2-xLuxWO6 (BLWO) phases and the Bi1.2Lu0.8WO6 exhibited the lowest efficiency of 37%. Free radical trapping experiments showed that holes and the superoxide ions are the active species which predominate the photocatalytic reaction.

中文翻译：

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钨酸镥铋系Bi2-xLuxWO6(0≤x≤1)的紫外光催化性能

摘要 Bi2-xLuxWO6 (0 ≤ x ≤ 1) 光催化剂是在 1000 °C 下通过固相反应制备的。原始的 Bi2WO6 (BWO) 在紫外光照射下具有最佳的光催化罗丹明 B 降解性能。BWO 在 160 分钟内达到近 90% 的效率，光催化效率随着用 Lu 取代 Bi 而降低，这是由于当组成 x 增加时比表面积降低的事实Bi2-xLuxWO6 (BLWO) 相和 Bi1.2Lu0.8WO6 的效率最低，为 37%。自由基捕获实验表明，空穴和超氧离子是主导光催化反应的活性物质。