Insight into antibiotics removal: Exploring the photocatalytic performance of a Fe3O4/ZnO nanocomposite in a novel magnetic sequential batch reactor.

摘要: The purpose of this research was the preparation and photocatalytic evaluation a novel nanocomposite (NC) based on Fe 3 O 4 /ZnO, to eliminate four persistent antibiotics in surface waters: sulfamethoxazole, trimethoprim, erythromycin roxithromycin. Prior operation reactor, influence pH (3–9), catalyst concentration (50–800 mg L −1) , oxidant dose (0–100 − 1 ) different targets (10–100 μg −1 catalytic efficiency evaluated. analysis reaction kinetics showed that degradation processes followed pseudo-first-order kinetic model. Antibiotics adsorption onto depended their electrostatic nature played an important role when decreasing initial antibiotics. In context, rates were higher at lower levels organic pollutants, which is favourable effect from practical application perspective. On other hand, synergistic available found, contributing oxidation by photo-Fenton as secondary reaction. Then, magnetic reactor operated under optimal conditions. enhanced photonic /ZnO system, well ease separation reusability, indicate viability configuration.