Journal of Photochemistry and Photobiology A: Chemistry 356 (2018) 256–262 Contents lists available at ScienceDirect Journal of Photochemistry and Photobiology A: Chemistry journal home page : www.elsevier.com/locat e/jphotochem Photocatalyst activity indicating adhesive labels for use in the ﬁeld A. Mills , D. Hawthorne, D. Hazafy, N. Wells School of Chemistry and Chemical Engineering, Queens University Belfast, David Keir Building, Stranmillis Road, Belfast, United Kingdom A R T I C L E I N F O A B S T R A C T Article history: Received 23 November 2017 The preparation and characterisation of a resazurin-based photocatalyst activity indicator label is Received in revised form 3 January 2018 described. The label is applied to a number of different TiO -based, photocatalytic materials, including Accepted 3 January 2018 self-cleaning: glass, tile, paint and awning materials, as well as a thin, sol-gel ﬁlm, produced in-house. In Available online 4 January 2018 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 Keywords: for a traditional Rz ink, produced by the drawdown
Journal of Photochemistry and Photobiology A: Chemistry – Elsevier
Published: Apr 1, 2018
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