Heterogeneous Fenton-like Photocatalytic Process towards the Eradication of Tetracycline under UV Irradiation: Mechanism Elucidation and Environmental Risk Analysis

The problem of the deep elimination antibiotics in environmental bodies is exceptionally warranted. In this work, a ternary nanocomposite FeNi3/SiO2/CuS (FSC) was fabricated and then integrated with UV light irradiation hydrogen peroxide as heterogeneous Fenton-like photocatalytic system for decomposition tetracycline (TC) from aqueous media. During process, various influencing parameters such pH, catalyst dosage, initial content TC, (H2O2) dose, operating time were explored. At optimized circumstances, i.e., 5 10 mg/L TC concentration, 150 H2O2 200 min degradation time, proportion 96%. results capture agent tests clarified that hydroxyl radical (HO•) played predominant role decontamination TC. Moreover, elevated contact H2O2, efficiency increased significantly. Additionally, findings stability reusability experiments showed percentage removal decreased by only about 5% after six cycles. Furthermore, mechanism over FSC photocatalyst elucidated. Eventually, non-carcinogenic risk analysis surface water sample carried out using multiple processes first time. These outcomes obtained study validate coupling oxidation facilitates great variety pharmaceutical contaminants