Abbasi Farzaneh, Mansouri Mohsen, Tanzifi Marjan
Department of Chemical Engineering, Ilam University, Ilam, Iran.
Sci Rep. 2025 Aug 22;15(1):30920. doi: 10.1038/s41598-025-16568-3.
The current study has been conducted to assess the influence of the morphology of bismuth ferrite perovskite (BiFeO) on its photocatalytic performance. Nanorod and nanoparticle morphologies of BiFeO were prepared using the hydrothermal process and analyzed with several techniques. The photocatalysts' effectiveness was appraised by MB photo-degradation in the presence of visible light. Various techniques were applied to analyze the structure, morphology, together with photoelectrochemical and optical properties of the photocatalyst. Optimum photo-degradation parameters were recognized via RSM, resulting in a maximum MB degradation efficiency of 98.2% (0.2021 min) in 20 min for nanorods. Whereas, the degradation yield for nanoparticles was achieved at 76% (0.075 min).From the radical trapping experiments, superoxide reactive radicals played a main role in MB photo-degradation. Also, BiFeO nanorods displayed superb stability during the five cycles of the photo-reaction procedure. This current survey suggests that the appropriate selection of nanomaterial morphology is crucial for achieving efficient photocatalysts.
本研究旨在评估钙钛矿型铋铁氧体（BiFeO）的形态对其光催化性能的影响。采用水热法制备了BiFeO的纳米棒和纳米颗粒形态，并运用多种技术进行了分析。通过在可见光存在下对亚甲基蓝（MB）进行光降解来评估光催化剂的有效性。采用了各种技术来分析光催化剂的结构、形态以及光电化学和光学性质。通过响应曲面法（RSM）确定了最佳光降解参数，对于纳米棒，在20分钟内实现了98.2%（0.2021分钟）的最大MB降解效率。而纳米颗粒的降解率为76%（0.075分钟）。从自由基捕获实验可知，超氧反应性自由基在MB光降解中起主要作用。此外，BiFeO纳米棒在光反应过程的五个循环中表现出卓越的稳定性。本次研究表明，适当选择纳米材料的形态对于获得高效光催化剂至关重要。
