Photocatalytic tio2 coatings on the polymer surfaces activated with visible light, method of their preparation and use thereof

Abstract

The invention relates to visible-light active photocatalytic coatings of titanium oxide (IV) on polymer surfaces, characterized in that are applied to a substrate which is the organic polymer material used in medicine, food and pharmaceutical packaging, and the coating is nanocrystalline titanium oxide (IV) or nanocrystalline titanium oxide (IV) surface-modified with organic compound. The invention also includes a method for the preparation of photocatalytic coatings of titanium oxide (IV) according to the invention, comprising the step of activating the surface of a polymeric material with low-temperature plasma technology, and then the synthesis of nanocrystalline titanium oxide (IV) coating and the modification of the surface layer with organic compounds. The invention also relates to the application of photocatalytic coating of titanium oxide (IV) according to the invention for sterilization of plastic elements used in medicine, food and pharmaceuticals packaging and application to production of selected products from the group consisting of: photosterilizing materials, photobactericidal, photofungicidal, photocatalytic materials.

Dependencies are inferred from the claim text.