Comparison of different iron-based catalysts for photocatalytic removal of imidacloprid

This contribution is concerned with the investigation of the removal efficiency of the pyridine-based insecticide imidacloprid from aqueous solution irradiated with UV or visible light in the presence of AlFe-pillared clay and Fe-ZSM-5 as catalysts. The obtained results were compared with those achieved using the photo-Fenton reaction as well as TiO2 Degussa P25. A stability study under natural conditions and direct photolysis in the presence of both light sources were also performed.