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Tailoring the photocatalytic activity of nanoparticulate zinc oxide by transition metal oxide doping

Dodd, Aaron, McKinley, Allan, Tsuzuki, Takuya and Saunders, Martin 2009, Tailoring the photocatalytic activity of nanoparticulate zinc oxide by transition metal oxide doping, Materials chemistry and physics, vol. 114, no. 1, pp. 382-386, doi: 10.1016/j.matchemphys.2008.09.041.

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Title Tailoring the photocatalytic activity of nanoparticulate zinc oxide by transition metal oxide doping
Author(s) Dodd, Aaron
McKinley, Allan
Tsuzuki, Takuya
Saunders, Martin
Journal name Materials chemistry and physics
Volume number 114
Issue number 1
Start page 382
End page 386
Publisher Elsevier B.V.
Place of publication Amsterdam, The Netherlands
Publication date 2009-03-15
ISSN 0254-0584
1879-3312
Keyword(s) oxides
semiconductors
chemical synthesis
Summary The successful use of nanoparticulate ZnO in applications such as UV-screening agents or photocatalyst for the destruction of chemical waste requires the development of techniques for controlling its photocatalytic activity. In this study, we have investigated transition metal doping as a means of achieving this goal. Powders of ZnO, MnxZn1−xO, and CoxZn1−xO were synthesised by a three-stage process consisting of high-energy mechanical milling, heat treatment, and washing. The photocatalytic activity of these powders was evaluated using the spin-trapping technique with electron paramagnetic resonance spectroscopy. It was found that the photocatalytic activity of CoxZn1−xO progressively decreased with the doping level. In contrast, the activity of MnxZn1−xO initially increased with doping up to a level of 2 mol% and thereafter declined. These results demonstrate that doping with transition metal oxides can be used to tailor the photocatalytic properties of nanoparticulate ZnO.
Language eng
DOI 10.1016/j.matchemphys.2008.09.041
Field of Research 100708 - Nanomaterials
HERDC Research category C1.1 Refereed article in a scholarly journal
HERDC collection year 2009
Copyright notice ©2008, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30020684

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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Created: Wed, 21 Oct 2009, 16:18:59 EST by Takuya Tsuzuki

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