Study of phase composition, photocatalytic activity, and photoluminescence of TiO2 with Eu additive produced by the extraction-pyrolytic method

Due to the unique properties and wide array of applications nanocrystalline materials based on titanium dioxide, study new synthesis approaches remains relevant. In this study, within framework extraction-pyrolytic method (EPM), we suggest using mixtures Ti- Eu-containing organic extracts valeric acid as precursors for fabrication TiO2-based powders with different Eu content: 0.5 mol%, 5 50 mol%. The thermal behavior individual metal-containing their mixture was studied by thermogravimetric analysis differential scanning calorimetry (TGA–DSC). To characterize phase composition morphology produced materials, X-ray diffraction (XRD) electron microscopy (SEM) were used. Photoluminescence Eu3+ ions in TiO2 nanocrystals have been studied. Photocatalytic activity tested reaction methylene blue (MB) oxidation under UV-VIS irradiation. Correlation between parameters (Eu content pyrolysis temperature) (phase composition, photoluminescence photocatalytic properties) has It demonstrated that presence a extract precursor increases anatase-to-rutile transformation temperature. highest efficiency (degradation degree MB 96%) shown powder consisting mixed polymorphs, anatase (main phase) rutile, mol% additive. TiO2:Eu3+ nanoparticles manifests degradation luminescence intensity.