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Issue 21, 2014
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A smart ink for the assessment of low activity photocatalytic surfaces

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Abstract

The azo dye, basic blue 66 (BB66) is used in a photocatalyst activity indicator ink (paii) to assess the activity of low activity photocatalytic surfaces, such as commercial photocatalytic tiles and silicone contaminated self-cleaning glass. The BB66 paii is shown to respond much faster than a previously reported, resazurin (Rz) based paii, i.e. the use of a BB66 paii on low activity self-cleaning tiles was found to be >6 times faster than the Rz paii. The BB66 paii is also shown to be effective at assessing the activity of piece of commercial self-cleaning glass contaminated with a coating of silicone, on which the Rz ink, in contrast, failed to show any significant change in colour over the same time period.

Graphical abstract: A smart ink for the assessment of low activity photocatalytic surfaces

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Publication details

The article was received on 25 Jul 2014, accepted on 03 Sep 2014 and first published on 03 Sep 2014


Article type: Paper
DOI: 10.1039/C4AN01375A
Citation: Analyst, 2014,139, 5409-5414
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    A smart ink for the assessment of low activity photocatalytic surfaces

    A. Mills, C. O'Rourke and N. Wells, Analyst, 2014, 139, 5409
    DOI: 10.1039/C4AN01375A

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