A comparative study of three techniques for determining photocatalytic activity

P. Evans, S. Mantke, A. Mills, D.W. Sheel

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Quantitative measurement of the activity of photoactive films is an area of importance. The establishment of tests for standardisation of performance is important for efficient research but also a major milestone in achieving technology acceptance. In this paper, we compare three different techniques across a range of film samples from various sources. Furthermore, we demonstrate the potential of the dye-based approach as a quick and simple test. A series of photoactive film samples are compared for measured activity against each test. The test is shown to be capable of reproducible and quantitative activity results. The test has potential for use 'in the field' for verification of in-use product activity.
Original languageEnglish
Pages (from-to)387-391
Number of pages4
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume188
Issue number2-3
DOIs
Publication statusPublished - 20 May 2007

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Keywords

  • photoactivity
  • stearic acid
  • dve test
  • contact angle
  • TiO2
  • resazurin

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