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| MMT/CNTs/Fe?O?复合电极协同催化降解磺胺甲噁唑机制研究 |
| Co-catalytic degradation by MMT/CNTs/Fe?O? composite electrode mechanistic study of sulfamethoxazole |
| 投稿时间：2025-05-02 修订日期：2025-05-13 |
| DOI： |
| 中文关键词: 三元复合电极 协同催化 电芬顿 磺胺甲噁唑 |
| 英文关键词:ternary composite electrode co-catalytic electro-Fenton sulfamethoxazole |
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| 中文摘要: |
| 本研究针对新兴有机污染物磺胺甲恶唑（SMX）的高效降解需求，开发了一种基于蒙脱土（MMT）、碳纳米管（CNTs）和四氧化三铁（Fe3O4）的三元复合电极材料。通过水热合成法与造粒、煅烧相结合，成功制备了 MMT/CNTs/Fe3O4 复合电极材料，并基于该复合电极构建了三维电极体系持续高效降解 SMX 。实验表明， CNT/Fe3O4 引入 MMT 后，该三元复合电极在电芬顿反应中表现出显著催化活性， 90 分钟内对 SMX 的降解效率高达 99.88% 。同步表征与机理分析揭示了 MMT 的吸附富集作用、 CNTs 的电子传递增强效应及 Fe3O4 的类芬顿催化活性三者之间的协同机制，为高级氧化技术提供了新型电极材料的设计思路。 |
| 英文摘要: |
| In this study, a ternary composite electrode material based on montmorillonite (MMT), carbon nanotubes (CNTs), and iron tetraoxide (Fe3O4) was developed to address the need for efficient degradation of sulfamethoxazole (SMX), an emerging organic pollutant. The MMT/CNTs/Fe3O4 composite electrode material was successfully prepared by combining hydrothermal synthesis method with granulation and calcination, and a three-dimensional electrode system was constructed based on this composite electrode to degrade SMX continuously and efficiently. The experiments showed that the ternary composite electrode exhibited significant catalytic activity in the electro-Fenton reaction after the introduction of CNT/Fe3O4 into MMT, and the degradation efficiency of SMX reached 99.88% within 90 min. Simultaneous characterization and mechanistic analysis revealed the synergistic mechanism between the adsorption and enrichment of MMT, the electron transfer enhancement of CNTs and the Fenton-like catalytic activity of Fe3O4, which provided a new design of electrode materials for advanced oxidation technology. |
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