Synthesis of Spherical Titanium Dioxide Nanocrystals by O2+Ar Arc Plasma Method
O2+Ar电弧等离子体法制备球形二氧化钛纳米晶

Spherical nanocrystals of titanium dioxide (TiO2) were synthesized by inflight oxidation of titanium (Ti) metal-atoms in argon-oxygen thermal plasma. Morphology investigation shows that these nanoparticles obtained are perfectly spherical and dispersible. Their average grain sizes are about 20nm. XRD analysis reveals that these spherical nanoparticles are totally crystalline, comprised of anatase and rutile or their composite.