Abstract

b), both having a wavelength in the visible spectrum (400-700 nm), the photocatalytic filter (7) comprising a photocatalytic nanoparticle coating and the nanoparticle coating comprising titanium dioxide doped with a nitrogen doping agent. •a unit (5) for straightening the flow before the filtering unit (10).

IPC Classes  ?

• A61L 9/18 - Radiation
• B01D 53/86 - Catalytic processes
• F24F 8/167 - Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using catalytic reactions
• A61L 101/02 - Inorganic materials
• A61L 101/12 - Inorganic materials containing silicon
• A61L 101/18 - Ammonia
• A61L 101/24 - Inorganic materials containing aluminium
• A61L 101/28 - Inorganic materials containing iron
• B01J 21/06 - Silicon, titanium, zirconium or hafniumOxides or hydroxides thereof
• B01J 21/04 - Alumina
• B01J 21/08 - Silica
• B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
• B01J 37/02 - Impregnation, coating or precipitation

Abstract

Described is a device (1) for reducing pollutants in a gaseous mixture comprising: • a containment body (2) having an inlet portion (3) for the gaseous mixture and an outlet portion (4) for the gaseous mixture, the containment body (2) imposing on the gaseous mixture a fixed direction of flow (D), • at least one filtering unit (10) comprising a photocatalytic filter (7) interposed, along the fixed direction of flow (D), between a first light source (6a) and a second light source (6b), both having a wavelength in the visible spectrum (400-700 nm), the photocatalytic filter (7) comprising a photocatalytic nanoparticle coating and the nanoparticle coating comprising titanium dioxide doped with a nitrogen doping agent. • a unit (5) for straightening the flow before the filtering unit (10).

IPC Classes  ?

• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
• F01N 3/28 - Construction of catalytic reactors