Nano Archive

Synthesis and characterisation of TiO2-derived nanotubes

Afshar, Shahrara and Hakamizadeh, Moones (2009) Synthesis and characterisation of TiO2-derived nanotubes. JOURNAL OF EXPERIMENTAL NANOSCIENCE, 4 (1). 77 -86 . ISSN 1745-8080

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Abstract

TiO2-based nanotubes were synthesised via hydrothermal and reflux methods in a 10 N NaOH solution at 403 K under stirring for 20-72 h from nano TiO2 and industrial TiO2 powders. The results show that the yield of nanotube formed through the hydrothermal method is higher than that of the reflux method. The samples were characterised by means of scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images and X-ray diffractometer (XRD) patterns to investigate the phase of the nanotubes. The results from XRD patterns show that nanotubes consist of a titanate structure with general formula NaxH2-xTi3O7, where 0 x 2, depending on degree of proton exchanged after acid washing. TEM images show the inner and outer diameters to be about 3 and 9 nm, respectively, for nanotubes. Also the SEM images show that the lengths of nanotubes are about several 10 m.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:7321
Deposited By:JNCASR
Deposited On:28 Oct 2009 09:40
Last Modified:28 Oct 2009 09:40

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