11 September 2007 Synthesis and characterization of TiO2 nanoparticles: anatase, brookite, and rutile
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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.
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David Reyes-Coronado, David Reyes-Coronado, Geonel Rodriguez-Gattorno, Geonel Rodriguez-Gattorno, Manuel Espinosa-Pesqueira, Manuel Espinosa-Pesqueira, James M. Gardner, James M. Gardner, Gerald J. Meyer, Gerald J. Meyer, Gerko Oskam, Gerko Oskam, } "Synthesis and characterization of TiO2 nanoparticles: anatase, brookite, and rutile", Proc. SPIE 6650, Solar Hydrogen and Nanotechnology II, 66500X (11 September 2007); doi: 10.1117/12.732647; https://doi.org/10.1117/12.732647

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