Porous TiO2 nanostructures synthesized from peroxotitanic acid-derived anatase

Titania/titanate nanotubes and nanoplates were prepared by an alkali hydrothermal method using the powder and the sol of peroxotitanic acid-derived anatase, respectively, as precursors. XRD patterns and Raman spectra showed that both nanotubes and nanoplates are of titanate structure with the latter...

Full description

Saved in:
Bibliographic Details
Published in:Journal of porous materials 2011-08, Vol.18 (4), p.435-441
Main Authors: Peng, W. Q., Liu, Y.-J., Aizawa, M., Wang, Z.-M., Hatori, H., Hirotsu, T.
Format: Article
Language:English
Subjects:
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Physical Chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Titania/titanate nanotubes and nanoplates were prepared by an alkali hydrothermal method using the powder and the sol of peroxotitanic acid-derived anatase, respectively, as precursors. XRD patterns and Raman spectra showed that both nanotubes and nanoplates are of titanate structure with the latter involving a slight part of anatase phase. These nanotubes and nanoplates are highly mesoporous based on nitrogen adsorption measurement. After calcination at 823 K, nanotubes were transformed into nanorods, and nanoplates into spherical particles, both of which are pure anatase-type titania. The nanorod material exhibits an enhanced photocatalytic activity in comparison with the spherical particles. Graphical Abstract FE-SEM images of nanotubes (left) and nanoplates (right) prepared using the powder and the sol of peroxotitanic acid-derived anatase as precursors, respectively.
ISSN:1380-2224
1573-4854
DOI:10.1007/s10934-010-9395-z