Synthesis of Fe₃O₄/HAP/Ag Composite Nanomaterials and Their Photocatalytic Degradation of Ciprofloxacin AITranslate

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Chinese Library Classification Number:TQ426.64[化学工程]

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As a widely used antibacterial drug,ciprofloxacin(CIP)residues have posed serious threats to ecosystems and human health.In order to solve this problem,magnetic hydroxyapatite/silver nanoparticle composite(Fe₃O₄/HAP/Ag)was synthesized via a blending method and employed as photocatalysts for CIP degradation,leveraging the photocatalytic properties of Ag.The phase and structure of the synthetic samples were characterized by X-ray diffraction(XRD)pattern,ultraviolet-visible(UV-Vis)absorption spectra and infrared(IR)spectra.The effects of CIP concentration,catalyst(Fe₃O₄/HAP/Ag)dosage and oxidant(peroxymonosulfate,PMS)amount on CIP degradation efficiency were investigated through degradation experiments.The results show that the optimized degradation conditions for 9 mL of ciprofloxacin solution are as follows:initial CIP concentration of 10 mg/L,Fe₃O₄/HAP/Ag dosage of 50 mg,and PMS amount of 5 mg.Under these conditions with 200 W light irradiation,the degradation rate of CIP reaches 70.36%within 60 min.The light irradiation can enhance the catalytic activity of the Fe₃O₄/HAP/Ag composite nanomaterials.This study establishes a novel approach for the efficient ciprofloxacin degradation.