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Photocatalytic decolourisation of RhB and photocorrosion of BiFeO3

Published online by Cambridge University Press:  15 June 2012

Chang Hengky  and
Steve Dunn
Chang Hengky
Affiliation:
Biomedical Engineering Group, School of Engineering (Manufacturing), NYP, Singapore, 569830
Steve Dunn*
Affiliation:
School and Engineering and Materials, Queen Mary University of London, E1 4NS, UK
*
*Email: [email protected]
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Abstract

BiFeO3 nanopowders with a size distribution around 20nm and optical absorption onset at 2eV have been synthesized using self-combustion. These particles were used to photodecolourise RhB under AM1.5 irradiation. XPS showed changes to the oxidation state of the Fe cations. Under AM 1.5 illumination at pH 2 RhB showed >95% decolourisation after 10minutes.

Keywords

photochemicalpiezoelectriccatalytic
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1443: Symposium R – Bandgap Engineering and Interfaces of Metal Oxides for Energy , 2012 , mrss12-1443-r01-12
Copyright
Copyright © Materials Research Society 2012

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References

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