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Optical properties and radiation stability of TiO 2 powders modified by Al 2 O 3 , ZrO 2 , SiO 2 , TiO 2 , ZnO, and MgO nanoparticles

“…This leads to the formation of defects in the TiO 2 cation sublattice. The absorption band of the cation sublattice defects is located mainly in the visible region of the spectrum[21,25]. The defects formed by a modification in the form of interstitial cations and cation vacancies in different charge states may be the main cause of the reduction of the radiation stability in this region of the spectrum during the irradiation of modified TiO 2 pigments.CONCLUSIONSThe effect of modification by the inclusion of metal oxide nanoparticles of Al 2 O 3 , ZrO 2 , SiO 2 , TiO 2 , ZnO, and MgO on the diffuse reflectance spectra and radiation stability of TiO 2 pigments with micron-sized grains was studied.…”