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Over the recent past,fluoroquinolone antibiotics(FQs)have raised extensive attention due to their potential to induce the formation of resistance genes and“superbugs”,thus var-ious advanced oxidation techniques have been developed to eliminate their release into the environment.In the present study,the prototype tetraamido macrocyclic ligand(FeⅢ-TAML)/hydrogen peroxide(H2O2)system is employed to degrade FQs(i.e.,norfloxacin and ciprofloxacin)over a wide pH range(i.e.,pH 6-10),and the reaction rate increases with the increase in pH level.The effect of dosage of FeⅢ-TAML and H2O2 on the degradation of FQs is evaluated,and the reaction rate is linearly correlated with the added amount of chemicals.Moreover,the impact of natural organic matters(NOM)on the removal of FQs is investi-gated,and the degradation kinetics show that both NOM type and experimental concentra-tion exhibit negligible influence on the oxidative degradation of selected antibiotics.Based on the results of liquid chromatography-high resolution mass spectrometry and theoretical calculations,the reaction sites and pathways of FQs by FeⅢ-TAML/H2O2 system are further predicted and elucidated.