Scientists from the Federal Research Center (FRC) "Institute of Catalysis SB RAS" in Novosibirsk have developed and patented an aerosol method for applying coatings that have self-cleaning properties against microorganisms and toxic compounds. This was reported by the press service of the center.
Currently, nanocrystalline titanium dioxide powders are most often used to create self-cleaning surfaces. However, these materials have a limitation — they only work in a narrow spectral range related to ultraviolet radiation. Scientists from the FRC "Institute of Catalysis SB RAS" have found a solution to this problem by developing composite photocatalysts with an extended range of action.
We have proposed special aerosol compositions containing a photoactive component, a binder, and a solvent. These compositions can be applied to the surfaces of various materials by spraying. After drying, a thin-film photoactive coating is formed, which self-cleans under the influence of light.
The patented method allows forming a thin layer of photocatalyst on the surface of finished products, in contrast to traditional methods where active components are initially included in the structure of the material. The developed photocatalysts are effective in a wide spectral range, including both UV radiation and visible light.
According to scientists, such catalysts can be used for continuous cleaning of premises.
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