Nitrogen-doped TiO2 nanoparticles and the use thereof in photocatalysis
US11597657B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | May 2, 2019 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Aug 2, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2305/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a photocatalyst that is active under irradiation with UV light, visible light and sunlight, comprising a powder or a ready-to-use nanometric suspension of nitrogen-doped TiO2, wherein the brookite crystalline phase is also present and whose doping nitrogen content (% by weight) is sufficient to ensure photocatalytic activity in the visible region. The photocatalyst can be easily applied to substrates of varying nature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.