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 03.12.2009   Карта сайта     Language По-русски По-английски
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03.12.2009

Optical and photocatalytic properties of nanoparticulate (TiO2)x(ZnO)1−x powders



Aaron Dodda, Corresponding Author Contact Information, E-mail The Corresponding Author, Allan McKinleyb, Takuya Tsuzukic and Martin Saundersd






aElectron Microscope Unit, University of New South Wales, Kensington, New South Wales 2052, Australia


bSchool of Biomedical, Biomolecular and Chemical Sciences, The University of Western Australia, Crawley, Western Australia 6009, Australia


cCentre for Material and Fibre Innovation, Institute for Technology Research and Innovation, Deakin University, Geelong, Victoria 3217, Australia


dCentre for Microscopy, Characterisation and Analysis, The University of Western Australia, Crawley, Western Australia 6009, Australia






Received 8 July 2009; 


revised 21 September 2009; 


accepted 22 September 2009. 


Available online 1 October 2009.






Abstract


In this study, we have investigated the optical and photocatalytic properties of nanoparticulate (TiO2)x(ZnO)1−x powders that were synthesised by mechanochemical processing. The objective was to establish the suitability of these powders for use as optically transparent ultraviolet light screening agents. It was found that the photocatalytic activity of single phase ZnO can be substantially reduced through the incorporation of TiO2 at the cost of a comparatively minor decrease in optical transparency. The composition given by (TiO2)0.10(ZnO)0.90 was characterised by a photocatalytic activity that was approximately 20% of that exhibited by the ZnO powder synthesised using similar processing conditions. These results demonstrate that (TiO2)x(ZnO)1−x powders synthesised by mechanochemical processing are potentially useful as optically transparent ultraviolet light screening agents.





Keywords: Oxide materials; Optical materials; Nanostructured materials; Mechanochemical processing; Optical properties





Article Outline



1. Introduction
2. Experimental details

2.1. Powder synthesis
2.2. Characterisation techniques
2.3. Photocatalytic testing

3. Results and discussion

3.1. Synthesis of ZnO and TiO2
3.2. Synthesis of (TiO2)x(ZnO)1−x
3.3. Optical properties
3.4. Photocatalytic activity

4. Conclusions
References






































Corresponding Author Contact InformationCorresponding author. Tel.: +61 2 9385 6709; fax: +61 2 9385 6400.










Journal of Alloys and Compounds
Volume 489, Issue 2, 21 January 2010, Pages L17-L21


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  • Lichtenstain Alexandr Iosif  honorary member of ISSC science council

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  • Yakushev Mikhail Vasilii  honorary member of ISSC science council

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