Microwave Hydrothermal Synthesis of Nanosize TiO2
Nanocrystalline titanium dioxide was synthesized by microwave hydrothermal (MH) using tetrabutyl titanate and normal butyl alcohol as start materials. The mixture solution of tetrabutyl titanate and normal butyl alcohol in 1:1.5 molar ratio was processed in a microwave hydrothermal digestion system at 200oC for 20 min to prepare nanosized TiO2 powders. The results showed that the microwave assisted reactions proceed at a faster rate than the traditional hydrothermal methods. The powder was heat treated at 500oC and the final products is ~20 nm in size and well dispersed.
Wei Pan and Jianghong Gong
Z. H. Zhou et al., "Microwave Hydrothermal Synthesis of Nanosize TiO2", Key Engineering Materials, Vols. 368-372, pp. 1461-1462, 2008