Synthesis of blue amorphous TiO2 and TinO2n-1 by the impulse plasma in liquid

抄録

Synthesis of various oxides of titanium by the impulse plasma in liquid is presented. By the impulse plasma between titanium rods submerged into water, we have synthesized blue amorphous TiO₂ nanoparticles suspended in water and titanium monoxide at the bottom. Different phases of titania oxides like Ti₃O, TiO, Ti₂O₃, Ti₄O₇ were produced by the impulse plasma in different water temperatures (3, 30, 60, and 90 C respectively). TEM analysis showed that the amorphous TiO₂ contains anatase nanocrystals with less than 10 nm. UV-vis absorption spectra of the blue TiO₂ showed higher absorbance of visible light than the commercial anatase nanoparticles.