Abstract:
A photocatalytic composition comprising: (a) at least one aerial binder; (b) at least one photocatalyst; (c) at least one cellulose ether; (d) at least one fluidizing agent; (e) at least one pumice in the form of micronized powder; (f) at least one barite in the form of micronized powder. This composition can be used as water-based paint for preparing wall coatings having a very low thickness, in particular for interior applications, which guarantee a high photocatalytic effect and stable with time, even with relatively low quantities of photocatalyst, normally lower than 10% by weight. This coating also has marked inhibitory properties with respect to the growth of mold and bacteria on wall surfaces.
Abstract:
There is disclosed an enclosed space system through which vehicles may pass, the enclosed space system including interior surfaces, a photocatalytic coating on an interior surface of the enclosed space system, and a lighting system in attachment with an interior surface of the enclosed space system, the lighting system including light sources emitting wavelengths in the range between 340 nm and 450 nm, the lighting system arranged to illuminate the photocatalytic coating with the wavelengths in the range between 340 nm and 450 nm, wherein the photocatalytic coating is activatable by the wavelengths in the range between 340 nm and 450 nm. There is further disclosed use of light emitting diodes emitting wavelengths in the range between 340 nm and 450 nm to illuminate a surface coated with a photocatalytic coating, wherein the photocatalytic coating is activatable by the wavelengths in the range between 340 nm and 450 nm.
Abstract:
The field of the invention relates to photocatalytic compositions, e.g. cement-based photocatalytic compositions, and the uses thereof for obtaining water paints. There is provided a photocatalytic composition, which comprises: (a) at least one inorganic binder; (b) at least one photocatalyst; (c) at least one cellulose with very low viscosity; (d) at least one fluidizing agent; (e) at least one first calcareous filler in the form of particles of which at least 95% by weight has a dimension not greater than 40 µm; (f) at least one second calcareous filler in the form of particles of which at least 95% by weight has a dimension not greater than 20 µm; (g) at least one thermal insulator material comprising hollow ceramic spheres with sub- mm diameters, and (h) glass bubble borosilicate microspheres. Advantages include that the hollow ceramic spheres with sub-mm diameters improve the yield (the dried paint area painted per kg of liquid paint) on the surface for the dried paint product, improve the thermal insulation of the dried paint product, and improve the reflectance of the dried paint product; the glass bubble borosilicate microspheres improve the yield (the dried paint area painted per kg of liquid paint) on the surface for the dried paint product, improve the reflectance of the dried paint product and easiness of work of the liquid paint including the composition.