Enhanced photocatalytic degradation of antibiotics and dye using flower-like BiOBrxI1-x solid solutions formed from self-assembled nanosheets

作者：Shulan Pu, Dongying Wang, Xi Luo, Yuhong Ding, Jianglong Guo, Yaxiong Li, Jin Z. Zhang, Yan Sun · 发表于：Journal of Science Advanced Materials and Devices · 年份：2025 · DOI：10.1016/j.jsamd.2025.101051 · 被引用次数：2 · 研究领域：Advanced Photocatalysis Techniques、TiO2 Photocatalysis and Solar Cells、Multiferroics and related materials

Flower-like BiOBr x I 1-x solid solutions with varying Br/I ratios were successfully prepared via a facile precipitation method. The photocatalytic performance was evaluated by degrading representative pollutants, including tetracycline (TC), oxytetracycline (OTC), and rhodamine B dye (RhB). All solid solutions exhibited enhanced activity compared to pure BiOBr and BiOI, and BiOBr 0.5 I 0.5 demonstrated the highest degradation efficiencies of 81.7 %, 76.4 %, and 98.5 % for TC, OTC, and RhB within 30 min, respectively. The formation of a solid solution altered the band structure and provided multiple active sites for photocatalytic reaction, thus accelerating the separation of charge carriers. Moreover, the main active species were revealed through capture experiments and electron spin resonance tests.