Synthesis of Blue Amorphous TiO2 and TinO2n–1 by the Impulse Plasma in Liquid

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Abstract:

Synthesis of blue amorphous TiO2 and TinO2n–1 by the impulse plasma in dielectric liquid is presented. The impulse plasma in liquid enables us to quench from plasma state, by which we can synthesize nanomaterials, metastable materials, etc. By the impulse plasma between titanium rods submerged into water, we have synthesized blue colored amorphous TiO2 nanoparticles suspended in water and black titanium monoxide at the bottom. Different types 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). High Resolution Transmission Electron Microscopy analysis showed that the amorphous TiO2 contains anatase nanocrystals with less than 10 nm. UV-vis absorption spectra of the blue TiO2 nanoparticles showed higher absorbance of visible light than the commercially available pure anatase nanoparticles.

Keywords: IMPULSE PLASMA IN LIQUID; NANOPARTICLES; SYNTHESIS; TIO2; VISIBLE LIGHT ACTIVITY

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2009.1331

Publication date: November 1, 2009

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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