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Proceedings Paper

Synthesis and characterization of TiO2 nanoparticles: anatase, brookite, and rutile
Author(s): David Reyes-Coronado; Geonel Rodriguez-Gattorno; Manuel Espinosa-Pesqueira; James M. Gardner; Gerald J. Meyer; Gerko Oskam
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Paper Abstract

Titanium dioxide nanoparticles have been prepared by solution-phase methods in the three phases that occur naturally, anatase, rutile, and brookite. The amorphous titania starting material was prepared from titanium(IV) iso-propoxide using iso-propanol as solvent and a small quantity of water. The resulting material was treated hydrothermally in an acid digestion vessel at temperatures between 175 °C and 230 °C with different reactants to obtain the three phases or controlled mixtures of two phases. The nanomaterials were characterized by a variety of techniques, including X-ray diffraction, Raman spectroscopy, electron microscopy, dynamic light scattering, and UV-Vis absorbance spectrophotometry. The results illustrate the relation between the properties of the nanoparticles in the colloid, in the powder, and in nanostructured thin films prepared with the materials. A thorough understanding of synthesis methods is essential for the preparation of nanomaterials with tailored structural, morphological, and ultimately, physical properties.

Paper Details

Date Published: 11 September 2007
PDF: 8 pages
Proc. SPIE 6650, Solar Hydrogen and Nanotechnology II, 66500X (11 September 2007); doi: 10.1117/12.732647
Show Author Affiliations
David Reyes-Coronado, CINVESTAV-IPN (Mexico)
Geonel Rodriguez-Gattorno, CINVESTAV-IPN (Mexico)
Manuel Espinosa-Pesqueira, Instituto Nacional de Investigaciones Nucleares (Mexico)
James M. Gardner, Johns Hopkins Univ. (United States)
Gerald J. Meyer, Johns Hopkins Univ. (United States)
Gerko Oskam, CINVESTAV-IPN (Mexico)

Published in SPIE Proceedings Vol. 6650:
Solar Hydrogen and Nanotechnology II
Jinghua Guo, Editor(s)

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