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- Title
Fe<sub>3</sub>O<sub>4</sub>@CF电极在非均相 电芬顿系统中降解四环素.
- Authors
赵龙飞; 万 宁; 黄雨婷; 岳彤彤; 冯 威
- Abstract
Aiming at the problem that the operating pH range of the conventional Fenton technique was relatively narrow, increasing pH value significantly reduced the removal rate of tetracycline and led to secondary contaminztion, Fe3O4@CF composite electrode was synthesized by loading Fe3O4 onto the surface of carbon felt (CF) electrode by using a solvent thermal synthesis method. The materials were characterised by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared absorption spectroscopy (FTIR) and electrochemical impedance (EIS). We investigated the degradation performance and mechanism of tetracycline using it as electrode in a non-homogeneous electrically assisted Fenton (EF) system, and conducted cyclic experiments. The results show that the Fe3O4@CF electrode exhibits the best degradation performance of tetracycline in a non-homogeneous electrically assisted Fenton system. After 90 min at room temperature, the initial mass concentration of tetracycline is 20 mg/L, an initial pH=3, a distance between the two electrodes is 2 cm, and an applied current is 50 mA, the removal rate of tetracycline by Fe3O4@CF electrode in the non-homogeneous electro-Fenton system can reach 96.7%. In addition, the Fe3O4@CF electrode has good reusability. In the degradation of tetracycline in the non-homogeneous electro-Fenton system, ∙OH plays a major role and ∙O2- plays an auxiliary role.
- Subjects
FOURIER transform infrared spectroscopy; X-ray photoelectron spectroscopy; SCANNING electron microscopy; X-ray diffraction; TETRACYCLINE
- Publication
Journal of Jilin University (Science Edition) / Jilin Daxue Xuebao (Lixue Ban), 2023, Vol 61, Issue 4, p982
- ISSN
1671-5489
- Publication type
Article
- DOI
10.13413/j.cnki.jdxblxb.2022457