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Degradation of ofloxacin using MnOx-modified carbon fiber anode
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DOI：10.1007/s10800-026-02487-2.png)
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Abstract
En 中文
This study developed a MnOx/CF(HT) composite anode through thermal activation followed by electrodeposition for the efficient electrochemical degradation of ofloxacin in wastewater. The physicochemical properties of the synthesized electrode were characterized using scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Electrochemical analyses demonstrated its superior catalytic activity and enhanced electron transfer capability compared to control electrodes. Under optimized operational conditions (initial OFL concentration: 1 mg L- 1, Na2SO4 electrolyte: 30 mM, applied voltage: 2.0 V, initial pH: 3), the MnOx/CF(HT) anode achieved 90% OFL removal and retained 78% efficiency over five consecutive cycles, indicating good stability. Radical quenching experiments confirmed that hydroxyl radicals (& centerdot;OH) served as the primary reactive species responsible for OFL degradation. The system also exhibited consistent efficacy across various real water matrices. Finally, the underlying reaction mechanism of the MnOx/CF(HT) system and the detailed degradation pathways of OFL were elucidated.
Keywords:
MnOx/CF(HT) anode
Ofloxacin degradation
Hydroxyl radicals
Degradation pathways
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