Sunlight active CdS/BiOBr heterojunction photocatalyst was fabricated by a solvothermal route. To the best of our knowledge, the novelty of the research is based on the decoration of the hexagonal CdS nanoparticles on the surface of the tetragonal BiOBr microflowers for the creation of a heterostructure photocatalyst used for the removal of the antibiotics. The CdS/BiOBr-1:3 heterojunction exhibited 100% removal of norfloxacin and ciprofloxacin under simulated visible light. In addition, complete degradation of the antibiotics under natural sunlight was also achieved. Construction of the CdS/BiOBr heterojunction is a promising strategy for the improvement of photocatalytic performance due to a decrease in the charge carrier recombination rate at the interface, an increase in the visible light absorption range, and an enhancement of the surface area of the resultant product. The removal of the pollutants fit very well with the first-order reaction. The photogenerated hole played a crucial role in the removal of the antibiotics. Confirmation of the stability of the CdS/BiOBr heterojunction was also elucidated. The photoactivity of the photocatalyst remained the same after the fifth cycle implying the excellent cycling ability of the sample. This research demonstrates the promising potential of the CdS/BiOBr heterojunction for degradation of toxic antibiotics presented in water.

通过溶剂热法制备了阳光活性的 CdS/BiOBr 异质结光催化剂。据我们所知，这项研究的新颖性是基于在四方 BiOBr 微花表面装饰六方 CdS 纳米颗粒，以创建用于去除抗生素的异质结构光催化剂。CdS/BiOBr-1:3 异质结在模拟可见光下表现出 100% 去除诺氟沙星和环丙沙星。此外，还实现了抗生素在自然阳光下的完全降解。由于界面处电荷载流子复合率的降低，可见光吸收范围的增加，CdS/BiOBr异质结的构建是提高光催化性能的一种有前景的策略，和提高所得产品的表面积。污染物的去除与一级反应非常吻合。光生孔在去除抗生素方面起着至关重要的作用。还阐明了 CdS/BiOBr 异质结稳定性的确认。光催化剂的光活性在第五次循环后保持不变，表明样品具有优异的循环能力。这项研究证明了 CdS/BiOBr 异质结在降解水中有毒抗生素方面的潜力。光催化剂的光活性在第五次循环后保持不变，表明样品具有优异的循环能力。这项研究证明了 CdS/BiOBr 异质结在降解水中有毒抗生素方面的潜力。光催化剂的光活性在第五次循环后保持不变，表明样品具有优异的循环能力。这项研究证明了 CdS/BiOBr 异质结在降解水中有毒抗生素方面的潜力。