Eliminating tetracycline antibiotics matrix via photoactivated sulfate radical-based advanced oxidation process over the immobilized MIL-88A: Batch and continuous experiments

This work demonstrates the successful immobilization of MIL-88A(Fe) MOF on cotton fibers to fabricate MIL-88A(Fe)/cotton (MC) by an eco-friendly method. The prepared MC is used activate peroxydisulfate for eliminating multiple tetracycline antibiotics, such as oxytetracycline (OTC), (TTC), and chlortetracycline (CTC) in simulated wastewater under UV-light irradiation. photoactivated sulfate radical-advanced oxidation processes (SR-AOPs) towards removal antibiotics matrix (initial concentration 10.0 mg/L) using were initially investigated a batch results reveal that 97.5% OTC, 95.2% TTC, 100.0% CTC can be degraded MC/UV/PDS system presence 2 g/L 1 mM PDS. degradation pathways clarified via liquid chromatography-mass spectrometry analysis DFT calculations. quantitative structure–activity relationship shows are transformed into their corresponding intermediates with lower toxicity within 8.0 min. A self-designed fixed bed reactor, which was packed annular channel, adopted test long-term operation possibility continuous SR-AOP system. findings demonstrate whole removed completely 22 h. first use MOFs catalysts achieve purification wastewater. highlight new large-scale treatment over.