Journal
CHEMICAL VAPOR DEPOSITION
Volume 16, Issue 1-3, Pages 50-54Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cvde.200906836
Keywords
antimicrobial materials; doped titanium dioxide; thin films; visible light photocatalysts; biomaterials
Funding
- Engineering and Physical Sciences Research Council [EP/E026141/1] Funding Source: researchfish
- EPSRC [EP/E026141/1] Funding Source: UKRI
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A comparison between two of the best performing photocatalysts in a series of nitrogen- and sulfur-doped titania visible light photocatalysts prepared by atmospheric pressure (AP)CVD is made against a sample of pure undoped titania. This study compares the ability of the samples to photo-oxidize stearic acid and kill Escherichia coli bacteria using white light sources commonly found in UK hospitals. It is shown that both nitrogen- and sulfur-doped photocatalysts are bioactive with extraordinarily similar properties though the nitrogen-doped samples are found to perform very slightly better than the sulfur-doped samples. These materials are suggested for use as anti-microbial surfaces in healthcare environments and as self-cleaning glass.
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