Nitrogen-Functionalized Graphite Felt for Tetracycline Degradation in Chlorinated Wastewater via Metal-Free Electro-Fenton
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Le résumé fourni par la source
Traditional electro-Fenton systems for chlorinated antibiotic wastewater suffer from low mineralization, catalyst deactivation, and secondary pollution caused by chloride ions. In this work, nitrogen-functionalized graphite felt cathodes were synthesized by electrodeposition-pyrolysis. Pyridinic N and graphitic N were identified by XPS. The obtained cathodes were employed in a metal-free electro-Fenton system for effective tetracycline (TC) removal and mineralization. The results show that the optimal electrode (N-GF-3) achieved 93% degradation efficiency and 73% mineralization of TC in 60 min, when the optimized conditions (pH = 3 and current density = 20 mA/cm2) were employed. Unusually, with the presence of Cl−, the system showed even higher catalytic performance, having a degradation kinetic constant 2.4 times higher than that without chloride. The electrode was also reusable, maintaining a TC degradation efficiency above 90% in the fifth cycle. Based on fluorescence analysis of ·OH, a possible dual-path reaction mechanism is proposed. This mechanism provides new insights into designing advanced oxidation processes for the treatment of complex chlorinated organic wastewater. Nevertheless, the potential formation of chlorinated byproducts requires additional investigation.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Nitrogen-Functionalized Graphite Felt for Tetracycline Degradation in Chlorinated Wastewater via Metal-Free Electro-Fenton
- Date Crossref
- 18/06/2026
- Éditeur
- MDPI AG
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Zhoukou Normal University pays non établi dans la noticeUniversité ou école supérieure
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Yangzhou University pays non établi dans la noticeUniversité ou école supérieure
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Shandong University Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta pays non établi dans la noticeUniversité ou école supérieure
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School of Chemistry and Chemical Engineering Zhoukou Key Laboratory of Environmental Pollution Prevention and Remediation pays non établi dans la noticeUniversité ou école supérieure
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School of Chemistry and Materials pays non établi dans la noticeUniversité ou école supérieure
Zhoukou Normal University, Yangzhou University et Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta — Shandong University, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.