» Articles » PMID: 39963450

Unveiling the Efficacy and Mechanism of Chlortetracycline Degradation by MnFeCu-LDH/GO Activating of Peroxymonosulfate

Overview
Journal RSC Adv
Specialty Chemistry
Date 2025 Feb 18
PMID 39963450
Authors
Affiliations
Soon will be listed here.
Abstract

Antibiotics are frequently detected in aquatic environments, posing potential risks to ecological systems and human health. Among the various treatment strategies, advanced oxidation processes (AOPs) utilizing peroxymonosulfate (PMS) activation stand out due to their ease of activation and potent oxidative capabilities. This study synthesized manganese-iron-copper layered double hydroxides coupled with graphene oxide (MnFeCu-LDH/GO) using eco-friendly transition metals. Optimal conditions of pH 7, 298 K, and 0.2 g L dosage of both catalyst and PMS achieved 98% CTC removal in 30 minutes. The composite was employed for the degradation of chlortetracycline (CTC) through PMS activation. Reactive oxygen species (ROS), including O, ˙OH, and SO˙, were identified and quantified through trapping and quenching experiments, and O was identified, to be the most significant contributor to degradation. The catalyst demonstrated excellent reusability, maintaining high degradation efficiency after five cycles. These findings suggest that MnFeCu-LDH/GO-activated PMS is a promising method for mitigating antibiotic contamination in water.

References
1.
Yuan R, Hu L, Yu P, Wang H, Wang Z, Fang J . Nanostructured CoO grown on nickel foam: An efficient and readily recyclable 3D catalyst for heterogeneous peroxymonosulfate activation. Chemosphere. 2018; 198:204-215. DOI: 10.1016/j.chemosphere.2018.01.135. View

2.
Miklos D, Remy C, Jekel M, Linden K, Drewes J, Hubner U . Evaluation of advanced oxidation processes for water and wastewater treatment - A critical review. Water Res. 2018; 139:118-131. DOI: 10.1016/j.watres.2018.03.042. View

3.
Liu J, Yang Q, Wang D, Li X, Zhong Y, Li X . Enhanced dewaterability of waste activated sludge by Fe(II)-activated peroxymonosulfate oxidation. Bioresour Technol. 2016; 206:134-140. DOI: 10.1016/j.biortech.2016.01.088. View

4.
Tian Y, Feng L, Li R, Li J, Du Z, Zhang L . Inhibitory effects of antioxidant moieties in humic substances on phototransformation of chlortetracycline mediated by the algae extracellular organic matter. Sci Total Environ. 2021; 798:149001. DOI: 10.1016/j.scitotenv.2021.149001. View

5.
Xu Y, Ai J, Zhang H . The mechanism of degradation of bisphenol A using the magnetically separable CuFe2O4/peroxymonosulfate heterogeneous oxidation process. J Hazard Mater. 2016; 309:87-96. DOI: 10.1016/j.jhazmat.2016.01.023. View