Photocatalyst activity indicating adhesive labels for use in the field

A. Mills, D. Hawthorne, D. Hazafy, N. Wells

Research output: Contribution to journalArticle

2 Citations (Scopus)
162 Downloads (Pure)

Abstract

The preparation and characterisation of a resazurin-based photocatalyst activity indicator label is described. The label is applied to a number of different TiO2-based, photocatalytic materials, including self-cleaning: glass, tile, paint and awning materials, as well as a thin, sol-gel film, produced in-house. In all cases, the label exhibited a blue to pink colour transition upon irradiation with UV light. In most cases, the time taken to bleach 90% of the red component of the digital image of the ink, ttb(90), was twice that for a traditional Rz ink, produced by the drawdown method, since the former was twice as thick. Although not as fast as a drawdown Rz ink, by a factor of ca. Two, it still only takes minutes to change and the Rz label is much more easily used, stored and does not need the sample to be: very smooth, horizontal or flat. As such it appears ideal for testing samples, both quantitatively and qualitatively in situ, i.e. in the field.
Original languageEnglish
Pages (from-to)256-262
Number of pages7
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume356
Early online date04 Jan 2018
DOIs
Publication statusPublished - Apr 2018

Fingerprint

inks
Photocatalysts
adhesives
Labels
Adhesives
Ink
tiles
paints
Sun hoods
cleaning
Tile
Paint
Ultraviolet radiation
gels
Sol-gels
color
Cleaning
preparation
irradiation
glass

Cite this

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title = "Photocatalyst activity indicating adhesive labels for use in the field",
abstract = "The preparation and characterisation of a resazurin-based photocatalyst activity indicator label is described. The label is applied to a number of different TiO2-based, photocatalytic materials, including self-cleaning: glass, tile, paint and awning materials, as well as a thin, sol-gel film, produced in-house. In all cases, the label exhibited a blue to pink colour transition upon irradiation with UV light. In most cases, the time taken to bleach 90{\%} of the red component of the digital image of the ink, ttb(90), was twice that for a traditional Rz ink, produced by the drawdown method, since the former was twice as thick. Although not as fast as a drawdown Rz ink, by a factor of ca. Two, it still only takes minutes to change and the Rz label is much more easily used, stored and does not need the sample to be: very smooth, horizontal or flat. As such it appears ideal for testing samples, both quantitatively and qualitatively in situ, i.e. in the field.",
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doi = "10.1016/j.jphotochem.2018.01.005",
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volume = "356",
pages = "256--262",
journal = "Journal of Photochemistry and Photobiology A: Chemistry",
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Photocatalyst activity indicating adhesive labels for use in the field. / Mills, A.; Hawthorne, D.; Hazafy, D.; Wells, N.

In: Journal of Photochemistry and Photobiology A: Chemistry, Vol. 356, 04.2018, p. 256-262.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Photocatalyst activity indicating adhesive labels for use in the field

AU - Mills, A.

AU - Hawthorne, D.

AU - Hazafy, D.

AU - Wells, N.

PY - 2018/4

Y1 - 2018/4

N2 - The preparation and characterisation of a resazurin-based photocatalyst activity indicator label is described. The label is applied to a number of different TiO2-based, photocatalytic materials, including self-cleaning: glass, tile, paint and awning materials, as well as a thin, sol-gel film, produced in-house. In all cases, the label exhibited a blue to pink colour transition upon irradiation with UV light. In most cases, the time taken to bleach 90% of the red component of the digital image of the ink, ttb(90), was twice that for a traditional Rz ink, produced by the drawdown method, since the former was twice as thick. Although not as fast as a drawdown Rz ink, by a factor of ca. Two, it still only takes minutes to change and the Rz label is much more easily used, stored and does not need the sample to be: very smooth, horizontal or flat. As such it appears ideal for testing samples, both quantitatively and qualitatively in situ, i.e. in the field.

AB - The preparation and characterisation of a resazurin-based photocatalyst activity indicator label is described. The label is applied to a number of different TiO2-based, photocatalytic materials, including self-cleaning: glass, tile, paint and awning materials, as well as a thin, sol-gel film, produced in-house. In all cases, the label exhibited a blue to pink colour transition upon irradiation with UV light. In most cases, the time taken to bleach 90% of the red component of the digital image of the ink, ttb(90), was twice that for a traditional Rz ink, produced by the drawdown method, since the former was twice as thick. Although not as fast as a drawdown Rz ink, by a factor of ca. Two, it still only takes minutes to change and the Rz label is much more easily used, stored and does not need the sample to be: very smooth, horizontal or flat. As such it appears ideal for testing samples, both quantitatively and qualitatively in situ, i.e. in the field.

U2 - 10.1016/j.jphotochem.2018.01.005

DO - 10.1016/j.jphotochem.2018.01.005

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VL - 356

SP - 256

EP - 262

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

SN - 1010-6030

ER -