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Glass Or Aluminum Structure Air Filter Using Photocatalyst Precoat and Manufacturing Method Therefor
| Content Provider | The Lens |
|---|---|
| Abstract | The present invention relates to an air filter using glass and aluminum substrates coated with a photocatalyst and a manufacturing method therefor. Disclosed is an air filter, which is more efficient in removing organic gas from air by using optical properties of a glass material and surface reflectance of an aluminum metal material to actively utilize the transmission and reflection of the light that is limitedly provided. |
| Related Links | https://www.lens.org/images/patent/US/20220143539/A1/US_2022_0143539_A1.pdf |
| Language | English |
| Publisher Date | 2022-05-12 |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Patent |
| Jurisdiction | United States of America |
| Date Applied | 2020-02-20 |
| Applicant | Woo Tae Young |
| Application No. | 202017432513 |
| Claim | A glass or aluminum structure air filter employing a photocatalytic precoat, configured by applying a photocatalytic topcoat to a glass or aluminum structure using the photocatalytic precoat as an adhesive medium, wherein the photocatalytic topcoat is formed of a colloidal titanium dioxide solution prepared by adding titanium tetraisopropoxide (TTIP) to anhydrous ethanol, stirring, adding an aqueous tetrabutylammonium hydroxide (TBAH) solution, carrying out a solvothermal reaction at high temperature and high pressure and thus obtaining a titanium dioxide crystal phase, and dispersing the crystal phase in an aqueous solution, the photocatalytic precoat is formed of a colloidal titanium dioxide solution prepared by mixing a titanium dioxide solution obtained in the formation of the photocatalytic topcoat with tetraethyl orthosilicate, methyl triethoxysilane, anhydrous ethanol, and an aqueous nitric acid solution, adding tetra-n-butyl titanate, and then inducing a reaction, and the air filter is formed by combining the glass or aluminum structure, the photocatalytic, precoat, and the topcoat and then performing sintering at high temperature. A method of manufacturing a glass or aluminum structure air filter employing a photocatalytic precoat, wherein a photocatalytic topcoat is applied to a glass or aluminum structure using a photocatalytic precoat solution as a binder, and the precoat solution is prepared by mixing and reacting a photocatalytic topcoat solution, tetraethyl orthosilicate (TEOS), and methyl triethoxysilane (MTEOS), adding tetra-n-butyl titanate (TnBT), and then inducing a reaction. The method of claim 2, wherein the precoat is formed on the glass or aluminum structure by forming a film by a coating process using one or more of a dip-coating process, a flow-coating process, and a spray-coating process, and drying in a drying oven at a temperature of 120° C. to 150° C. for 20 minutes to 30 minutes. The method of claim 2, wherein the glass structure is an air filter structure formed of a glass material including one or more of a glass plate having a plate shape and a glass tube having a tube shape, and a photocatalytic film having a geometric surface area (GSA; units: m2/m3) value of 2,000 and an open frontal area (OFA; units: %) value of 69 is formed. The method of claim 2, wherein the aluminum structure is configured to have a hexagonal or rectangular honeycomb shape, and has a GSA value of 1,490 and an OFA value of 96. The method of claim 2, wherein sintering is performed at high temperature and thus bonding between the photocatalytic topcoat, the precoat, and the glass or aluminum structure is imparted, and the sintering is performed at a temperature range of 400° C. to 550° C. for a sintering time of 30 minutes to 2 hours. The method of claim 2, wherein a glass plate and a glass tube are disposed in the air filter, and a GSA value is 1,310, and an OFA value is 44. The method of claim 2, wherein a glass tube of the glass structure has a GSA value of 1,260 and an OFA value of 49. The method of claim 2, wherein the glass structure is configured of a glass plate and a glass tube which are alternately disposed, and has a GSA value of 1,310 and an OFA value of 44. |
| CPC Classification | Separation Methods Or Apparatus For Sterilising Materials Or Objects In General;Disinfection; Sterilisation Or Deodorisation Of Air;Chemical Aspects Of Bandages; Dressings; Absorbent Pads Or Surgical Articles;Materials For Bandages; Dressings; Absorbent Pads Or Surgical Articles Chemical Or Physical Processes; E.G. Catalysis Or Colloid Chemistry;Their Relevant Apparatus |
| Extended Family | 096-205-557-318-254 106-420-599-196-366 087-248-066-989-233 134-878-097-201-233 119-587-765-504-253 172-025-527-220-164 146-324-243-893-92X 053-745-504-316-578 |
| Patent ID | 20220143539 |
| Inventor/Author | Woo Tae Young |
| IPC | B01D39/20 B01D53/86 B01D53/88 |
| Status | Active |
| Simple Family | 096-205-557-318-254 106-420-599-196-366 087-248-066-989-233 134-878-097-201-233 119-587-765-504-253 146-324-243-893-92X 172-025-527-220-164 053-745-504-316-578 |
| CPC (with Group) | B01D39/2003 A61L9/205 A61L2209/14 B01D39/2027 B01D53/8668 B01D53/885 B01D2239/0478 B01D2239/083 B01D2255/20707 B01D2255/9022 B01D2257/708 B01D2258/06 B01D2259/804 B01J21/063 B01J35/39 B01J37/0244 B01D39/20 B01D2239/0471 B01D2239/10 |
| Issuing Authority | United States Patent and Trademark Office (USPTO) |
| Kind | Patent Application Publication |
