Journal
JOURNAL OF CRYSTAL GROWTH
Volume 312, Issue 2, Pages 213-219Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jcrysgro.2009.10.050
Keywords
Low-dimensional structure; Oxides; Single-crystal growth; Nanomaterials
Funding
- National High Technology Research and Development Program (863)
- Ministry of Education [2007AA05Z438, 200803860004]
- Fujian Province [2008J0332, 2007HZ0005-1]
- Fuzhou University
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In this study, large single-crystal anatase TiO2 bipyramids were first successfully synthesized using a simple hydrothermal route. The synthesized bipyramids were characterized by XRD, SEM and TEM measurements, and found that these bipyramids are highly crystalline anatase TiO2 with a size up to 3.6 mu m between the two ends. On the other hand, it was also found that the size and shape of bipyramids were significantly influenced by the pH value. Based on a series of experimental results, a possible model for the process of dissolving-coalescing-growing, has been proposed for the formation of large anatase TiO2 bipyramids. (C) 2009 Elsevier B.V. All rights reserved.
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