Current and possible future methods of assessing the activities of photocatalyst films
Mills, A. and McFarlane, Michael (2007) Current and possible future methods of assessing the activities of photocatalyst films. Catalysis Today, 129 (1-2). pp. 22-28. (http://dx.doi.org/10.1016/j.cattod.2007.06.046)
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The continuing interest in semiconductor photochemistry, SPC, and the emergence of commercial products that utilise films of photocatalyst materials, has created an urgent need to agree a set of methods for assessing photocatalytic activity and international committees are now meeting to address this issue. This article provides a brief overview of two of the most popular current methods employed by researchers for assessing SPC activity, and one which has been published just recently and might gain popularity in the future, given its ease of use. These tests are: the stearic acid (SA) test, the methylene blue (MB) test and the resazurin (Rz) ink test, respectively. The basic photochemical and chemical processes that underpin each of these tests are described, along with typical results for laboratory made sol-gel titania films and a commercial form of self-cleaning glass, Activ™. The pros and cons of their future use as possible standard assessment techniques are considered.
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Item type: Article ID code: 17129 Dates: DateEvent15 November 2007PublishedSubjects: Science > Chemistry Department: Faculty of Science > Pure and Applied Chemistry Depositing user: Strathprints Administrator Date deposited: 17 Apr 2010 13:46 Last modified: 08 Apr 2024 17:32 URI: https://strathprints.strath.ac.uk/id/eprint/17129