As a member of the DIN Photocatalysis Standards Committee and as a recognized test laboratory of the German Association of Applied Photocatalysis (FAP), the Fraunhofer IST offers its customers standard tests of their photocatalytically active products in accordance with the currently applicable national and international test standards as well as certification of their products in accordance with the guidelines of the FAP. In addition, we carry out customer-specific tests as part of the product development process and thus offer our customers a comprehensive range of services for evaluating everything from material to application.
The Fraunhofer IST has various methods at its disposal for the detection and quantification of the pollutant degradation of photocatalytically active products in the air with regard to the following pollutants:
The use of different reactor types (e.g. for planar samples, non-wovens or bulk materials) and light sources (fluorescent lamps, LEDs) thereby allows a wide variety of products to be tested.
In this method, the substrate to be tested is continuously exposed to the pollutant nitric oxide (NO) with simultaneous UV irradiation, which is oxidized to nitrate by the photocatalytic process. The reaction rate of the degradation reaction of NO allows a quantitative assessment of the photocatalytic efficiency of the tested surfaces if the environmental parameters (wavelength, irradiance, gas concentrations and conditions, etc.) are known.