Co0.5Mg0.5Fe2O4/rGO纳米复合材料增强光催化降解四环素抗生素的活性,Materials Letters

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Co0.5Mg0.5Fe2O4/rGO纳米复合材料增强光催化降解四环素抗生素的活性
Materials Letters ( IF 2.7 ) Pub Date : 2023-12-16 , DOI: 10.1016/j.matlet.2023.135756
Misbah latif , Muhammad Hammad Aziz , Fozia Shaheen , Syed Mansoor Ali , Muhammad Asif , Qing Huang

本研究研究了钴镁铁氧体（Co _0.5 Mg _0.5 Fe ₂ O ₄）与还原氧化石墨烯（rGO）作为四环素光降解的主要光催化剂。Co _0.5 Mg _0.5 Fe ₂ O ₄ /rGO纳米复合材料在可见光辐射120分钟后降解了93％的四环素（TC-HCL），这可归因于吸附能力的提高以及光激发的明显更好的转移和分离（ $\frac{e^{-}}{H^{+}}$ ) 对。此外，Co _0.5 Mg _0.5 Fe ₂ O ₄ /rGO纳米复合材料具有更高的稳定性和可回收性。根据观察到的中间体，提出了四环素降解的可能过程，其中·OH 和^· $氧_{2}^{-}$ 发挥了主要作用。还使用 LC-MS 方法提供了 TC-HCL 的光降解。Co _0.5 Mg _0.5 Fe ₂ O ₄ /rGO 纳米复合材料被发现具有增强光催化性能的新潜力，使其成为适合废水处理的光催化剂。

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Enhanced photocatalysis activity of Co0.5Mg0.5Fe2O4/rGO nanocomposites for tetracycline antibiotic degradation

This study investigated cobalt-magnesium ferrite (Co_0.5Mg_0.5Fe₂O₄) with reduced graphene oxide (rGO) as a dominant photocatalyst for the photo-degradation of tetracycline. Co_0.5Mg_0.5Fe₂O₄/rGO nanocomposite degraded 93 % of the tetracycline (TC-HCL) after 120 min of visible radiation, which can be attributed to the improved adsorption capacity and the significantly better transfer and separation of photoexcited ( $\frac{e^{-}}{h^{+}}$ ) pairs. Additionally, the Co_0.5Mg_0.5Fe₂O₄/rGO nanocomposite had higher stability and recyclability. Based on observed intermediates, possible processes of tetracycline degradation were proposed, where the •OH and ^• $O_{2}^{-}$ played a major part. Photodegradation of TC-HCL was also provided using the LC-MS approach. The Co_0.5Mg_0.5Fe₂O₄/rGO nanocomposite was found to have a new potential for enhanced photocatalytic performance, making it a suitable photocatalyst for wastewater treatment.

更新日期：2023-12-16

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