Author/Authors :
Myronyuk، نويسنده , , L.I. and Myronyuk، نويسنده , , I.F. and Chelyadyn، نويسنده , , V.L. and Sachko، نويسنده , , V.M. and Nazarkovsky، نويسنده , , M.A. and Leboda، نويسنده , , R. and Skubiszewska-Ziêba، نويسنده , , J. and Gun’ko، نويسنده , , V.M.، نويسنده ,
Abstract :
Crystalline structure of nanotitania (anatase, rutile) and the morphology of primary and secondary particles can be regulated using low-amount additions of Na2SO4 (or K3PO4), NaOH or Н2О2. Anions SO42− and PO43− can bind to Ti-containing species that lead to the formation of anatase nanocrystallites with sulfate and phosphate functionalities. According to TEM images, nanoparticles (rod-like, spherical or ellipsoidal) form different secondary structures (sheaf-like associates forming flower-shaped aggregates or spherical associates) possessing different textural porosity analyzed using nitrogen adsorption–desorption isotherms. Additives form surface structures, which can affect particle–particle interactions in the liquid media.
