Paper Title:
Synthesis and Characterization of Titanate Nanotubes and Nanowires in a Revolving Autoclave
  Abstract

One-dimensional titanate nanotubes and nanowires were synthesized by hydrothermally treating TiO2 nanoparticles (P25) with an aqueous NaOH solution in a revolving autoclave. The effect of the reaction temperature and time on the morphology and crystal structure of titanate nanomaterials was systematically studied. When the hydrothermal treatment was carried out in a revolving autoclave, nanotubes with NaxH1-xTi2-x/4Υx/4O4•H2O crystal structure were obtained and favor to self-assemble in shape of clusters and bundles, and nanotube bundles tended to transform into nanowires with the crystal structure transforming into NaxH2-xTi3O7 within 48 h at a hydrothermal temperature higher than 130 °C. Based on the experimental results, a possible mechanism for the formation of titanate nanotube by wrapping of nanosheets and nanowires formed via the cooperation of oriented attachment and Ostwald ripening was proposed.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
497-502
DOI
10.4028/www.scientific.net/AMR.194-196.497
Citation
X. F. Li, Q. Z. Jiao, Y. Zhao, H. S. Li, "Synthesis and Characterization of Titanate Nanotubes and Nanowires in a Revolving Autoclave", Advanced Materials Research, Vols. 194-196, pp. 497-502, 2011
Online since
February 2011
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