Large-Scale Synthesis of Iron Ore@Biomass Derived ESBC to Degrade Tetracycline Hydrochloride for Heterogeneous Persulfate Activation

Iron-based catalysts are widely used in water treatment and environmental remediation due to their abundant content nature ability activate persulfate at room temperature. Here, eggshell biochar-loaded natural iron slag (IO@ESBC) was successfully synthesized remove tetracycline hydrochloride (TCH) by activated persulfate. The morphology, structure chemical composition of IO@ESBC were systematically characterized. IO@ESBC/PS process showed good performance for TCH removal. decomposition rate constant (k) 0.011 min−1 the degradation 3690 mmol/g/h this system. With increase PS concentration content, removal both increased. can effectively pH 3–9. There different effects on reason that addition matrix species (humic acid, Cl−, HCO3−, NO3− HPO42−). system degrading mainly controlled free radical pathway (SO4•−, •OH O2•−) non-free (1O2). loading ESBC slows down agglomeration between particles, more active sites exposed. still above 75% after five cycles IO@ESBC. This interesting investigation has provided a green route synthesis composite driving from waste resources, expanding its further application remediations.