Optical and photocatalytic properties of nanocrystalline TiO2 synthesised by solid-state chemical reaction

Dodd, Aaron, McKinley, Allan, Tsuzuki, Takuya and Saunders, Martin 2007, Optical and photocatalytic properties of nanocrystalline TiO2 synthesised by solid-state chemical reaction, Journal of physics and chemistry of solids, vol. 68, no. 12, pp. 2341-2348.

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Title Optical and photocatalytic properties of nanocrystalline TiO2 synthesised by solid-state chemical reaction
Formatted title Optical and photocatalytic properties of nanocrystalline TiO2 synthesised by solid-state chemical reaction
Author(s) Dodd, Aaron
McKinley, Allan
Tsuzuki, Takuya
Saunders, Martin
Journal name Journal of physics and chemistry of solids
Volume number 68
Issue number 12
Start page 2341
End page 2348
Publisher Pergamon
Place of publication Oxford, England
Publication date 2007-12
ISSN 0022-3697
1879-2553
Keyword(s) nanostructures
optical materials
semiconductors
chemical synthesis
Summary Nanoparticulate TiO2 is of interest for a variety of technological applications, including optically transparent UV-filters and photocatalysts for the destruction of chemical waste. The successful use of nanoparticulate TiO2 in such applications requires an understanding of how the synthesis conditions effect the optical and photocatalytic properties. In this study, we have investigated the effect of heat treatment temperature on the properties of nanoparticulate TiO2 powders that were synthesised by solid-state chemical reaction of anhydrous TiOSO4 with Na2CO3. It was found that the photocatalytic activity increased with the heat treatment temperature up to a maximum at 600 °C and thereafter declined. In contrast, the optical transparency decreased monotonically with the heat treatment temperature. These results indicate that solid-state chemical reaction can be used to prepare powders of nanoparticulate TiO2 with properties that are optimised for use as either optically transparent UV-filters or photocatalysts.
Language eng
Field of Research 100708 Nanomaterials
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2007, Elsevier Ltd.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30022532

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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