Inhibition of bromate formation by surface reduction in catalytic ozonation of organic pollutants over β-FeOOH/Al2O3

- β-FeOOH/Al2O3 showed high efficiency for BrO3− inhibition and pollutants removal.
- BrO3− was reduced to Br− on the surface of β-FeOOH/Al2O3 by surface Fe(II).
- The surface Fe(II) was from the reaction of Fe(III) with HO2− in O3 decomposition.
- The complexation of Fe(III) with COOH could enhance the surface Fe(II) generation.