Highly bioactive silver and silver/titania composite films grown by chemical vapour deposition
Brook, LA, Evans, P, Foster, HA, Pemble, ME, Steele, A, Sheel, DW and Yates, HM 2007, 'Highly bioactive silver and silver/titania composite films grown by chemical vapour deposition' , Journal of Photochemistry and Photobiology A: Chemistry, 187 (1) , pp. 53-63.
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This paper describes how photocatalytically active films of TiO2, grown by thermal CVD, may be functionally and structurally modified by deposition of nano-structured silver via a novel flame assisted 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 bio-activity of the combined film structure, and the transparency of the composite films. Furthermore, we show that the resultant films also exhibit “self-regeneration” capability, in that they both kill bacteria present on the film surface and then photo-degrade the residues. Such a dual action significantly reducing the problems of surface deactivation due to build up of contamination. 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 bioactive surface functionality is sought.
|Uncontrolled Keywords:||CVD, chemical vapour deposition, FACVD, flame assisted CVD, bioactive thin films|
|Themes:||Subjects / Themes > Q Science > Q Science (General)|
Subjects / Themes > Q Science > QD Chemistry
Subjects outside of the University Themes
|Schools:||Colleges and Schools > College of Science & Technology|
Colleges and Schools > College of Science & Technology > School of Environment and Life Sciences
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Materials & Physics Research Centre
Colleges and Schools > College of Science & Technology > School of Environment and Life Sciences > Ecosystems and Environment Research Centre
|Journal or Publication Title:||Journal of Photochemistry and Photobiology A: Chemistry|
|Depositing User:||H Kenna|
|Date Deposited:||07 Aug 2007 14:16|
|Last Modified:||08 Mar 2012 09:59|
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