Lanthanum-based perovskites as catalysts for the ozonation of selected organic compounds

- La containing perovskites are tested as ozonation catalysts.
- Perovskites of the type LaBO3 are highly active in oxalic acid ozonation.
- Presence of lattice vacancies and tuning of oxidation ability by the B cation play a key role.
- The mechanism involves both surface and liquid bulk reactions.
- LaCoO3 promoted ozonation of the reactive dye tested allows complete mineralization.