中文标题：染料敏化的Bi2MoO6用于在LED光照下高效光催化降解左氧氟沙星
英文标题： Dye-sensitized Bi2MoO6 for highly efficient photocatalytic degradation of levofloxacin under LED light irradiation
期刊名称及期号、页码：Materials Today Sustainability, 2023，21，100311.
作者姓名（中文）：位顺航，范世岩，张铭豪，任俊，贾博，汪亚威，吴荣，方泽波*，梁奇锋*
作者姓名（英文）：Shunhang Wei, Shiyan Fan, Minghao Zhang, Jun Ren, B. Jia , Yawei Wang, Rong Wu, Zebo Fang*, Qifeng Liang*
摘要（英文）： Different from traditional dye sensitization by chemisorption in the dark, this work uses electron trapping sites and positively charged rhodamine B dye molecules to achieve electrostatic interaction under irradiation. As the irradiation time increases, the surface oxygen vacancies of Bi2MoO6 as the electron trapping sites gather a large number of electrons forming negative surface, which are tightly bound to the positive rhodamine B dye molecules. In the dye-sensitized Bi2MoO6 system, the electrons located on the oxygen vacancies can reduce the oxidized dyes to ground state. The newly formed ground-state dyes are photoexcited again and inject electrons into the conduction band of the Bi2MoO6 to participate in photodegradation levofloxacin. Then the newly aggregated electrons on the oxygen vacancies repeat the above cycle. The formation of the cyclic path greatly reduces the recombination of electrons and holes in Bi2MoO6, which increases the efficiency of photocatalytic degradation of levofloxacin from ~43.5% to ~98.3% under LED irradiation for 2 h. In addition, the photodegradation pathway of levofloxacin is investigated.
摘要（中文）：与传统的在黑暗中通过化学吸附进行染料敏化不同，本工作利用电子捕获位点和带正电的罗丹明B染料分子在光照下实现静电相互作用。随着照射时间的增加，作为电子捕获位点的Bi2MoO6表面氧空位聚集了大量电子形成负电性的表面，与正电性的罗丹明B染料分子紧密结合。在染料敏化Bi2MoO6体系中，位于氧空位上的电子可以将氧化的染料还原为基态。新形成的基态染料再次被光激发，并将电子注入Bi2MoO6的导带，参与左氧氟沙星的光降解。然后，氧空位上新聚集的电子重复上述循环。循环路径的形成大大减少了Bi2MoO6中电子和空穴的复合，使左氧氟沙星在LED照射2小时下的光催化降解效率从约43.5%提高到约98.3%。此外，对左氧氟沙星的光降解路径进行了研究。
全文链接：
https://www.sciencedirect.com/science/article/pii/S2589234722002032?via%3Dihub
