HIGHLIGHTS
· FeOx@FeP heterostructure was constructed by surface phosphorization of α-Fe2O3.
· FeOx@FeP heterostructure exhibits enhanced activity for photo-Fenton removal of norfloxacin.
· FeP overlayer could accelerate the separation and transfer of photogenerated charges in α-Fe2O3.
· ·OH and ·O2- radicals are the dominant reactive species for norfloxacin degradation.