In situ synthesis of FeOCl@MoS2 on graphite felt as novel electro-Fenton cathode for efficient degradation of antibiotic ciprofloxacin at mild pH. (June 2021)

• Record Type: Journal Article
• Authors: Liu, Zejun; Wan, Jinquan; Ma, Yongwen; Wang, Yan
• Is Part Of: Chemosphere. Volume 273(2021)
• Publication Date: 2021-06
• Subjects: Electro-fenton -- Ciprofloxacin -- GF@MoS2@FeOCl; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2021.129747
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: The traditional Electro-Fenton (EF) is an efficient technology for wastewater treatment but suffers from the acidic condition requirement and external catalyst addition. To overcome these challenges, a GF@MoS2 @FeOCl cathode was fabricated using a facile method. The as-prepared GF@MoS2 @FeOCl cathode showed excellent performance for ciprofloxacin (CIP) degradation in EF process with RuO2 /Ti electrode as the anode. H2 O2 was electro-generated and activated on-site at the cathode at mild pH without adding Fe 2+ . CIP was 100% removed with 74.4% of mineralization in 90 min at pH 6. The GF@MoS2 @FeOCl cathode exhibited good reusability after consecutive runs of degradation. The degradation intermediates were investigated, and the possible mechanism was proposed. This work demonstrated that the prepared GF@MoS2 @FeOCl cathode is a promising candidate for contaminants treatment in an EF system. Highlights: In situ synthetic GF@MoS2 @FeOCl cathode was fabricated via a facile two-step route. GF@MoS2 @FeOCl cathode was used for Electro-Fenton process to efficiently remove ciprofloxacin. Ciprofloxacin degradation of 100% was obtained in 90 min at mild pH.