US 12,251,667 B2
Nanofunctionalised polymeric support with photocatalytic nanoparticles based on titanium dioxide and its use as photocatalysts
Giovanni Baldi, Montespertoli (IT); Andrea Cioni, Empoli (IT); Valentina Dami, Larciano (IT); Laura Niccolai, Montelupo Fiorentino (IT); and Marco Bitossi, Montelupo Fiorentino (IT)
Assigned to COLOROBBIA CONSULTING S.R.L., Vinci (IT)
Appl. No. 17/773,259
Filed by COLOROBBIA CONSULTING S.R.L., Vinci (IT)
PCT Filed Oct. 29, 2020, PCT No. PCT/IB2020/060156
§ 371(c)(1), (2) Date Apr. 29, 2022,
PCT Pub. No. WO2021/084468, PCT Pub. Date May 6, 2021.
Claims priority of application No. 102019000020122 (IT), filed on Oct. 31, 2019.
Prior Publication US 2024/0149224 A1, May 9, 2024
Int. Cl. B01D 69/14 (2006.01); B01D 71/02 (2006.01); B01D 71/06 (2006.01); B01J 20/02 (2006.01); B01J 20/28 (2006.01); C02F 1/28 (2023.01); C02F 1/32 (2023.01)
CPC B01D 69/145 (2013.01) [B01D 71/0221 (2022.08); B01D 71/024 (2013.01); B01D 71/06 (2013.01); B01J 20/0211 (2013.01); B01J 20/28026 (2013.01); C02F 1/281 (2013.01); B01D 2323/081 (2022.08); B01D 2323/21813 (2022.08); B01D 2323/26 (2013.01); B01D 2325/00 (2013.01); B01J 20/28045 (2013.01); C02F 1/32 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A manufactured product nanofunctionalized with photocatalytic nanoparticles, said manufactured product being a manufactured product made of polymeric material characterized by a nanoroughness (3), measured by means of an electron microscope, comprised between 10 and 150 nm and a macroroughness (1), (2), measured by means of an electron microscope, comprised between 100 and 600 μm, wherein said nanoroughness and macroroughness are diffused internally and/or superficially, and wherein said photocatalytic nanoparticles are present within said polymeric material and/or in the form of a nanoparticle coating on at least one inner an/or outer surface of said product,
wherein said photocatalytic nanoparticles are nitrogen-doped TiO2 (TiO2—N) nanoparticles comprising at least one brookite crystalline phase in an amount of 10 to 99% by weight relative to the weight of the nanoparticles and a rutile crystalline phase in an amount of 25 to 90% by weight relative to the weight of the nanoparticles.