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Synthesis, characterization, and photocatalytic properties of pyrochlore Bi2Ti2O7 nanotubes

Published online by Cambridge University Press:  03 March 2011

Hongjun Zhou ,
Tae-Jin Park  and
Stanislaus S. Wong
Hongjun Zhou
Affiliation:
Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
Tae-Jin Park
Affiliation:
Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400
Stanislaus S. Wong*
Affiliation:
Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400; and Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973
*
a) Address all correspondence to this author. e-mail: sswong@notes.cc.sunysb.edu or sswong@bnl.gov
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Abstract

Bismuth titanate (Bi2Ti2O7) nanotubes were successfully synthesized with an alumina template-based sol-gel technique. As-synthesized nanotubes are smooth and uniform with diameters ranging from 180 to 330 nm and lengths varying from 7 to 12 μm. Extensive characterization of as-prepared samples has been performed using x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), energy-dispersive x-ray spectroscopy (EDS), and selected-area electron diffraction (SAED). Photocatalytic studies indicate that as-prepared nanotubes possess higher photocatalytic activity than the corresponding bulk sample prepared without the use of an alumina template.

Keywords

Chemical synthesisPhotochemicalSol-gel
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 11 , November 2006 , pp. 2941 - 2947
Copyright
Copyright © Materials Research Society 2006

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