Method for manufacturing photocatalytic filter for air purification
US11576995B2 · kind B2 · utility
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Key dates
| Filing date | Jul 31, 2018 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Feb 10, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/90
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a method for manufacturing a photocatalytic filter for air purification. The present manufacturing method comprises the steps of: oxidizing a titanium metal to obtain a nanostructured titanium dioxide (TiO2); adding the nanostructured titanium dioxide to an acidic fluorine-containing solution to allow a reaction to occur therebetween for a predetermined period of time; and, after treatment in the acidic fluorine-containing solution, performing heat treatment on the nanostructured titanium dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.