DW Sheel
Biocidal silver and silver/titania composite films grown by
chemical vapour deposition
Sheel, DW; Brook, LA; Evans, P; Foster, HA; Yates, HM; Steele, A; Ditta, IB
Authors
LA Brook
P Evans
HA Foster
HM Yates
A Steele
IB Ditta
Abstract
This paper describes the growth and testing of highly active biocidal films based on photocatalytically active films of TiO2, grownby
thermal CVD, functionally and structurallymodified by deposition of nanostructured silver via a novel flame assisted combination
CVD process. The resulting composite films are shown to be highly durable, highly photocatalytically active and are also shown to
possess strong antibacterial behaviour. The deposition control, arising from the described approach, offers the potential to control
the film nanostructure, which is proposed to be crucial in determining the photo and bioactivity of the combined film structure,
and the transparency of the composite films. Furthermore, we show that the resultant films are active to a range of organisms,
including Gram-negative and Gram-positive bacteria, and viruses. The very high-biocidal activity is above that expected from the
concentrations of silver present, and this is discussed in terms of nanostructure of the titania/silver surface. These properties are
especially significant when combined with the well-known durability of CVD deposited thin films, offering new opportunities for
enhanced application in areas where biocidal surface functionality is sought.
Citation
chemical vapour deposition. International Journal of Photoenergy, 2008(168185), https://doi.org/10.1155/2008/168185
Journal Article Type | Article |
---|---|
Publication Date | Jan 1, 2008 |
Deposit Date | Oct 21, 2011 |
Publicly Available Date | Apr 5, 2016 |
Journal | International Journal of Photoenergy |
Print ISSN | 1110-662X |
Publisher | Hindawi |
Peer Reviewed | Peer Reviewed |
Volume | 2008 |
Issue | 168185 |
DOI | https://doi.org/10.1155/2008/168185 |
Publisher URL | http://dx.doi.org/10.1155/2008/168185 |
Files
Yates_IntlJPhotoEnergy2008[2008]168185.pdf
(1.5 Mb)
PDF
Licence
http://creativecommons.org/licenses/by/3.0/
Publisher Licence URL
http://creativecommons.org/licenses/by/3.0/
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