通过可回收的 Fe3S4/Ti3C2MXene 复合材料强力降解四环素抗生素,Environmental Science: Nano

当前位置： X-MOL 学术 › Environ. Sci.: Nano › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

通过可回收的 Fe3S4/Ti3C2MXene 复合材料强力降解四环素抗生素
Environmental Science: Nano ( IF 5.8 ) Pub Date : 2023-10-25 , DOI: 10.1039/d3en00560g
Pascaline Sanga _{1,

2} , Jia Chen ₁ , Jing Xiao _{1,

2} , Bei Liu _{1,

2} , Haitham Saad Al-mashriqi _{1,

2} , Hongdeng Qiu _{1,

2,

3}

Affiliation

从废水中高效、可持续地去除四环素（TC）具有重要意义。_{在本研究中，我们提出了一种利用 Fe 3} S ₄ /Ti ₃ C ₂ MXene的协同效应有效降解 TC 的新技术。Fe ₃ S ₄ /Ti ₃ C ₂ MXene 复合材料专为此目的而设计，具有源自 Fe ₃ S ₄的卓越磁性。我们的研究表明，该复合材料通过 Fenton 活性显着增强了 TC 的降解，实现了超过 90% 的令人印象深刻的降解率。值得注意的是，当TC处于Fe ₃ S ₄ /Ti ₃ C ₂ MXene + H ₂ O ₂体系中时，会产生大量的活性氧，包括˙OH和˙O ₂^-。_{其中，˙OH主要产生于Fe 3} S ₄ /Ti ₃ C ₂ MXene表面，在TC降解中起主导作用。相比之下，单独的原始Fe ₃ S ₄或Ti ₃ C ₂ MXene在类似条件下不表现出可比的降解能力。此外，Fe ₃ S ₄ /Ti ₃ C ₂ MXene复合材料在连续四个循环中表现出优异的可重复使用性和高稳定性。利用气相/液相色谱-质谱（GC/LC-MS）分析来鉴定TC降解的中间体，并提出了可能的降解途径。_{这些发现凸显了 Fe 3} S ₄ /Ti ₃ C ₂ MXene 复合材料在增强 Fenton 降解过程中的潜力，并揭示了成功消除废水中 TC 的令人鼓舞的策略。

"点击查看英文标题和摘要"

Robust degradation of tetracycline antibiotic through recyclable Fe3S4/Ti3C2MXene composites

The efficient and sustainable removal of tetracycline (TC) from wastewater is a matter of great significance. In this study, we present a novel technique that effectively degrades TC by harnessing the synergistic effects of Fe₃S₄/Ti₃C₂MXene. The Fe₃S₄/Ti₃C₂MXene composite, specifically designed for this purpose, exhibits exceptional magnetic properties derived from Fe₃S₄. Our research demonstrates that this composite significantly enhances TC degradation through Fenton activity, achieving an impressive degradation rate of over 90%. Notably, when TC is subjected to the Fe₃S₄/Ti₃C₂MXene + H₂O₂ system, it generates a substantial amount of reactive oxygen species, including ˙OH and ˙O₂⁻. Among these species, ˙OH, primarily produced on the surface of Fe₃S₄/Ti₃C₂MXene, plays a dominant role in TC degradation. In contrast, pristine Fe₃S₄ or Ti₃C₂MXene alone does not exhibit comparable degradation capabilities under similar conditions. Moreover, the Fe₃S₄/Ti₃C₂MXene composite demonstrates excellent reusability and high stability over four consecutive cycles. Gas/liquid chromatography–mass spectrometry (GC/LC–MS) analysis was utilized to identify the intermediates of TC degradation, and a possible degradation pathway was proposed. These findings highlight the potential of Fe₃S₄/Ti₃C₂MXene composites in enhancing the Fenton degradation process and unveil an encouraging tactic for the successful elimination of TC from wastewater.

更新日期：2023-10-25

点击分享查看原文

点击收藏

阅读更多本刊新发论文