NANOFUNCTIONALISED POLYMER CARRIER WITH PHOTOCATALYTIC NANOPARTICLES BASED ON TITANIUM DIOXIDE AND USE THEREOF IN PHOTOCATALYSIS Russian patent published in 2024 - IPC B01J20/06 B01J20/26 B01J21/06 C02F1/72 B01D53/88 

FIELD: chemistry.

SUBSTANCE: invention relates to a polymer carrier suitable for cleaning contaminated gaseous or liquid medium. Disclosed is a nano-functionalised carrier, nano-functionalised with photocatalytic nanoparticles, wherein said carrier is a carrier made from a polymer material, having at least an inner and/or outer surface, obtained by 3D printing, injection moulding or extrusion of said polymer material and characterized by nano-roughness (3) measured using an electron microscope from 10 to 50 nm and macro-roughness (1), (2) measured using an electron microscope, from 100 to 600 mcm, where said nano-roughness and macro-roughness are distributed inside and / or on the surface, wherein said polymer material contains at least one (co) polymer selected from: polymethyl methacrylate (PMMA), polyamide (PA), polycarbonate (PC), polylactic acid (PLA), polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), acrylonitrile styrene acrylate (ASA), acrylonitrile butadiene styrene (ABS), polyethylene terephthalate glycol (PET-g), polyurethane (PU), polypropylene (PP), copolyester and combinations thereof, and said photocatalytic nanoparticles are present in said polymer material and/or in the form of a nanoparticle coating on at least one inner and/or outer surface of said carrier, and wherein said photocatalytic nanoparticles are nitrogen-doped TiO₂ (TiO₂-N) nanoparticles; method of producing the disclosed nanofunctionalised carrier, using the disclosed nanofunctionalised carrier for cleaning a fluid medium from organic contaminants and a filtering device comprising the disclosed nano-functionalised carrier. Obtaining a nanofunctionalised carrier with photocatalytic nanoparticles based on TiO₂, made of a polymer material with which the photocatalyst particles are compatible.

EFFECT: nanofunctionalised carrier with photocatalytic nanoparticles based on TiO₂ provides effective adhesion of photocatalytic nanoparticles to a polymer carrier and makes these nanoparticles available for photocatalytic action when irradiated with a UV and/or visible light source.

16 cl, 19 dwg, 3 tbl, 7 ex