Polymorphic control in titanium dioxide particles.

ABSTRACT: The hydrolysis-condensation reaction of TiO₂ was adapted to the phase inversion temperature (PIT)-nano-emulsion method as a low energy approach to gain control over the size and phase purity of the resulting metal oxide particles. Three different PIT-nano-emulsion syntheses were designed, each one intended to isolate high purity rutile, anatase, and brookite phase particles. Three different emulsion systems were prepared, with a pH of either strongly acidic (H₂O : HNO₃, pH ∼0.5), moderately acidic (H₂O : isopropanol, pH ∼4.5), or alkaline (H₂O : NaOH, pH ∼12). PIT-nano-emulsion syntheses of the amorphous TiO₂ particles were conducted under these conditions, resulting in average particle diameter distributions of ∼140 d nm (s

SUBMITTER: Quinones Velez G 

PROVIDER: S-EPMC9846715 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature