Controlled Crystallization of Ultrafine Titanium Dioxide Particles in the Presence of Hydrophilic or Amphiphilic Polymer from Peroxotitanic Acid

Controlled crystallization of titanium dioxide ultrafine particles in the presence of water-soluble polymer from peroxotitanic acid was investigated. Heating of aqueous solution of peroxotitanic acid with the polymer at 220 C for 5 h in an autoclave gave the suspension containing nanometer-sized TiO 2 particles with perfectly controlled crystalline anatase or rutile.