Photocatalytic activity of Eu-doped TiO2 ceramic films prepared by microplasma oxidation method

Mesoporous TiO2 ceramic films have been fabricated on titanium plates by the microplasma oxidation method. To increase the photocatalytic activity of the films, Eu(NO3)3 of different concentrations are added to the H2SO4 electrolyte solution. X-ray diffraction, X-ray photoelectron spectroscopy, atomic force microscopy, scanning electron microscopy techniques, reused and regenerated experiments are applied to characterize the modified films. Rhodamine B is used to evaluate the photocatalytic activity of the modified films. The results show that Eu ions are found in the porous TiO2 films, and the film has high photocatalytic activity, good adherence to substrate, better reuse and regeneration properties.