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Fabrication of Rh-doped TiO2 nanofibers for Visible Light Degradation of Rhodamine B

Published online by Cambridge University Press:  23 May 2011

Emilly A. Obuya ,
William Harrigan ,
Tim O’Brien ,
Dickson Andala ,
Eliud Mushibe  and
Wayne E. Jones Jr
Emilly A. Obuya
Affiliation:
Department of Chemistry, State University of New York at Binghamton, 4400 Vestal Parkway East, Vestal, NY 13902, USA.
William Harrigan
Affiliation:
Department of Chemistry, State University of New York at Binghamton, 4400 Vestal Parkway East, Vestal, NY 13902, USA.
Tim O’Brien
Affiliation:
Department of Chemistry, State University of New York at Binghamton, 4400 Vestal Parkway East, Vestal, NY 13902, USA.
Dickson Andala
Affiliation:
Department of Chemical Engineering, Pennsylvania State University, 25 Fenske, University Park, PA 16802, USA.
Eliud Mushibe
Affiliation:
Department of Chemistry, State University of New York at Binghamton, 4400 Vestal Parkway East, Vestal, NY 13902, USA.
Wayne E. Jones Jr*
Affiliation:
Department of Chemistry, State University of New York at Binghamton, 4400 Vestal Parkway East, Vestal, NY 13902, USA.
*
*Author to whom correspondence should be addressed; e-mail; [email protected]; Tel: +1-607-777-2421; Fax: +1-607-777-4478.
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Abstract

The synthesis and application of environmentally benign, efficient and low cost heterogeneous catalysts is increasingly important for affordable and clean chemical technologies. Nanomaterials have been proposed to have new and exciting properties relative to their bulk counterparts due to the quantum level interactions that exist at nanoscale. These materials also offer enormous surface to volume ratios that would be invaluable in heterogeneous catalysis. Recent studies point at titanium dioxide nanomaterials as having strong potential to be applied in heterogeneous photocatalysis for environmental remediation and pollution control. This work reports the use of surface modified anatase TiO2 nanofibers with rhodium (Rh) nanoparticles in the photodegradation of rhodamine B (RH-B), an organic pollutant. The dimensions of TiO2 nanofibers were 150±50 nm in diameter and the size of the Rh nanoparticles was ~5 nm. The Rh-doped TiO2 catalyst exhibited an enhanced photocatalytic activity in photodegradation of rhodamine B under visible light irradiation, with 95 % degradation within 180 minutes reaction time. Undoped TiO2 did not show any notable phocatalytic activity under visible light.

Keywords

nanostructuresemiconductingcatalytic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1352: Symposium GG – Titanium Dioxide Nanomaterials , 2011 , mrss11-1352-gg09-04
Copyright
Copyright © Materials Research Society 2011

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References

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