Abstract
The CoFe@Eggshell composites were fabricated to degrade the norfloxacin (NOR) with the peroxymonosulfate (PMS) activation. Various characterization methods were used to analyze the property of the composite, which showed that the material has excellent stability and practical applications. The results indicated that the CoFe@Eggshell/PMS system achieved a removal efficiency of 93.9% for NOR under optimal conditions. After five regeneration cycles, the degradation efficiency for NOR reached over 91.9%, demonstrating the excellent stability of the catalyst. The combination of Co, Fe and eggshell enhanced the electron transfer ability and promoted the redox cycles of Co2+/Co3+ and Fe2+/Fe3+. The porous structure of eggshells provided abundant active sites on the catalyst surface that facilitated the effective degradation of NOR. The research provides a research direction for the application of eggshell waste in the field of advanced oxidation.
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