Thin coatings of Bi₂O₃ were deposited on glass substrates by ultrasonic spray coating of THF solutions of the molecular precursor [Bi₃₈O₄₅(OMc)₂₄(DMSO)₉] ⋅ 2DMSO ⋅ 7H₂O (OMc=O₂CC₃H₅) followed by hydrolysis and subsequent annealing. Depending on the synthetic protocol, the bismuth oxido cluster was transformed into either α‐ or β‐Bi₂O₃. The as‐synthesized Bi₂O₃ coatings were characterized by powder X‐ray diffraction (PXRD), thickness measurements, diffuse reflectance UV‐Vis spectroscopy (DRS), photoluminescence (PL) spectroscopy, Raman spectroscopy and scanning electron microscopy (SEM). The thin coatings (thickness: 5–16 μm) were compared with regard to their performance in photocatalytic rhodamine B (RhB) decomposition under visible light irradiation. The β‐Bi₂O₃ coatings, that showed the highest photocatalytic activity, were used for the photocatalytic decomposition of other pollutants such as triclosan and ethinyl estradiol. In addition, the interplay between the photooxidation that is induced by the excitation of the catalyst using visible light and the photosensitized decomposition pathway was studied by degradation experiments of aqueous rhodamine B solutions using β‐Bi₂O₃ coatings.

中文翻译：

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分子氧化铋团簇超声喷涂的α-和β-Bi2O3薄涂层及其在可见光下光催化净水的应用。

通过超声喷涂分子前体[Bi ₃₈ O ₄₅（OMc）₂₄（DMSO）₉ ]·2DMSO·7H ₂ O（OMc = O ₂ CC ₃）的THF溶液，在玻璃基板上沉积Bi ₂ O ₃薄涂层。H ₅），然后水解并随后退火。根据不同的合成方案中，铋氧桥簇转化到任何α-或β-Bi系₂ ö ₃。合成后的Bi ₂ O ₃涂层通过粉末X射线衍射（PXRD），厚度测量，漫反射紫外可见光谱（DRS），光致发光（PL）光谱，拉曼光谱和扫描电子显微镜（SEM）进行表征。比较了薄涂层（厚度：5–16μm）在可见光照射下在光催化若丹明B（RhB）分解中的性能。β‐Bi ₂ O ₃具有最高光催化活性的涂料用于其他污染物（如三氯生和乙炔基雌二醇）的光催化分解。此外，通过使用可见光催化剂和光敏分解途径的激发诱导的光氧化之间的相互作用是由水溶液若丹明B色溶液降解实验使用β-Bi系研究_2个ö ₃涂层。