Journal
MATERIALS LETTERS
Volume 62, Issue 24, Pages 4035-4037Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2008.05.056
Keywords
nanomaterials; crystal structure; electron microscopy
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Titanium dioxide nanoparticles were prepared via a facile hydrothermal approach with titanium tetrabutoxicle as a precursor under strongly acidic condition. The transmission electron microscopy results showed that novel flower-like, leaf-like, and rod-like TiO2 nanoscale materials could be easily obtained by tailoring the concentration of the precursor and the reaction temperature. And the analysis from X-ray diffraction revealed that all the as-prepared products under different experimental conditions possessed a mixed crystal phase of anatase and rutile. The reasons for the phase formation were discussed. Larger proportion of rutile phase should be ascribed to the strongly acidic conditions. The growth mechanisms of TiO2 nanostructures with various morphologies were also proposed. (C) 2008 Elsevier B.V. All rights reserved.
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