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Photocatalytic activity of ZnO nanostructured film grown by activated reactive

Published online by Cambridge University Press:  31 January 2011

Yuvaraj Dhayalan  and
narasimha rao k
Yuvaraj Dhayalan
Affiliation:
yuvaraj@gmail.com, Indian Institute of Science, Department of Instrumentation, Bangalore, India
narasimha rao k
Affiliation:
knrao@isu.iisc.ernet.in, Indian Institute of Science, Department of Instrumentation, Bangalore, India
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Abstract

ZnO nanostructured films were deposited at room temperature on glass substrates and cotton fabrics by activated reactive evaporation in a single step without using metal catalyst or templates. Morphological observation has shown that the nanostructured film contains seaurchin-like structures, and this seaurchin containing large number of randomly grown ZnO nanoneedles. Microstructural analysis revealed the single crystalline nature of the grown nanoneedles and their growth direction was indentified to be along [0002]. PL spectrum of nanostructured films has shown a relatively weak near-band-edge emission peak at 380 nm, and a significant broad peak at 557 nm due to the oxygen vacancy-related emission. ZnO nanostructured films grown on glass substrates and cotton fabrics have shown good photocatalytic activity against rhodamine B.

Keywords

nanostructurethin filmphysical vapor deposition (PVD)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1217: Symposium Y – Catalytic Materials for Energy, Green Processes and Nanotechnology , 2009 , 1217-Y03-50
Copyright
Copyright © Materials Research Society 2010

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