Effect of particle size on the photocatalytic activity of nanoparticulate zinc oxide

Dodd, A. C., McKinley, A. J., Saunders, M. and Tsuzuki, T. 2006, Effect of particle size on the photocatalytic activity of nanoparticulate zinc oxide, Journal of nanoparticle research, vol. 8, no. 1, pp. 43-51, doi: 10.1007/s11051-005-5131-z.

Attached Files
Name Description MIMEType Size Downloads

Title Effect of particle size on the photocatalytic activity of nanoparticulate zinc oxide
Author(s) Dodd, A. C.
McKinley, A. J.
Saunders, M.
Tsuzuki, T.
Journal name Journal of nanoparticle research
Volume number 8
Issue number 1
Start page 43
End page 51
Publisher Springer Netherlands
Place of publication Dordrecht, Netherlands
Publication date 2006-02
ISSN 1388-0764
Keyword(s) mechanochemical processing
zinc oxide
Summary In this study, a three-stage process consisting of mechanical milling, heat treatment, and washing has been used to manufacture nanoparticulate ZnO powders with a controlled particle size and minimal agglomeration. By varying the temperature of the post-milling heat treatment, it was possible to control the average particle size over the range of 28–57 nm. The photocatalytic activity of these powders was characterized by measuring the hydroxyl radical concentration as a function of irradiation time using the spin-trapping technique with electron paramagnetic resonance spectroscopy. It was found that there exists an optimum particle size of approximately 33 nm for which the photocatalytic activity is maximized. The existence of this optimal particle size is attributable to an increase in the charge carrier recombination rate, which counteracts the increased activity arising from the higher specific surface area for a sufficiently small particle size.
Language eng
DOI 10.1007/s11051-005-5131-z
Field of Research 100708 Nanomaterials
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2006, Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30022528

Document type: Journal Article
Collections: Centre for Material and Fibre Innovation
GTP Research
Connect to link resolver
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 152 times in TR Web of Science
Scopus Citation Count Cited 165 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 681 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Tue, 19 Jan 2010, 13:53:04 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.