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Developing a Testing Method for Antimicrobial Efficacy on TiO2 Photocatalytic Products
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  • Journal title : Environmental Engineering Research
  • Volume 13, Issue 3,  2008, pp.136-140
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2008.13.3.136
 Title & Authors
Developing a Testing Method for Antimicrobial Efficacy on TiO2 Photocatalytic Products
Kim, Jee-Yeon; Park, Chang-Hun; Yoon, Je-Yong;
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photocatalyst has been known to exhibit a notable disinfecting activity against a broad spectrum of microorganisms. A lot of commercial photocatalyst products have been developed for antimicrobial purposes. However, a standard method has not yet been proposed for use in testing antimicrobial activity. In this study, we developed a photocatalytic adhesion test method with film as the standard testing method for the evaluation of antimicrobial activity. This method was devised by modifying the previous antimicrobial products test method, which has been widely used, and considering the characteristics of photocatalytic reaction. The apparatus for testing the antimicrobial activity was composed of a Black Light Blue (BLB) lamp as UV-A light source, a Petri dish as the cover material, and a polypropylene film as the adhesion film. The standard photocatalyst sample, Degussa P25 - coated glass, could only be used once. The optimal initial concentration of the microorganism, proper light intensity, and light irradiation time were determined to be CFU/mL, 1.0 mW/, and 3 hr, respectively, for testing and evaluating antimicrobial activity on the surface.
;Photocatalyst;Standardization;Antimicrobial efficacy;Adhesion film;
 Cited by
나노 입자에 의한 미생물 불활성화 특성 및 메카니즘,김지연;박희진;윤제용;

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