Method of forming an agent and its use in desulphurisation
US-9205367-B2 · Dec 8, 2015 · US
Titanium oxide photocatalyst having copper compounds supported thereon, and method for producing same
US9248432B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9248432-B2 |
| Application number | US-201213882425-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 22, 2012 |
| Priority date | Jun 27, 2011 |
| Publication date | Feb 2, 2016 |
| Grant date | Feb 2, 2016 |
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Abstract
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A copper compound-carried titanium oxide photocatalyst which is excellent in a photocatalytic activity and a viral inactivation property and a production process for the same can be provided by a copper compound-carried titanium oxide photocatalyst comprising titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more and a monovalent copper compound and a divalent copper compound which are carried on a surface of the titanium oxide described above and a production process for a copper compound-carried titanium oxide photocatalyst, comprising a step of carrying a monovalent copper compound and a divalent copper compound on a surface of titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more.
First claim
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What is claimed is: 1. A copper compound carried on a titanium oxide photocatalyst comprising titanium oxide in which a content of rutile type titanium oxide is 80% by mole or more and a monovalent copper compound and a divalent copper compound which are carried on a surface of said titanium oxide, wherein an abundance ratio of monovalent copper to a sum of monovalent copper and divalent copper is 20 to 70% by mole. 2. The copper compound carried on a titanium oxide photocatalyst according to claim 1 , wherein the monovalent copper compound contains copper (I) oxide. 3. The copper compound carried on a titanium oxide photocatalyst according to claim 1 , wherein the divalent copper compound contains copper (II) hydroxide. 4. The copper compound carried on a titanium oxide photocatalyst according to claim 1 , wherein the titanium oxide described above is obtained by a vapor phase method. 5. A production process for a copper compound carried on a titanium oxide photocatalyst, comprising a step of depositing a monovalent copper compound and a divalent copper compound on a surface of titanium oxide in which a content of rutile type titanium oxide is 80% by mole or more, wherein an abundance ratio of monovalent copper to a sum of monovalent copper and divalent copper is 20 to 70% by mole. 6. The production process for a copper compound carried on a titanium oxide photocatalyst according to claim 5 , comprising a step of adding a reducing agent for reducing divalent copper to monovalent copper to a suspension prepared by blending the divalent copper compound with the titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more. 7. The production process for a copper compound carried on a titanium oxide photocatalyst according to claim 5 , comprising a step of irradiating a catalyst precursor containing the titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more and the divalent copper compound carried on a surface of the titanium oxide described above with light to reduce a part of the divalent copper compound to the monovalent copper compound. 8. The production process for a copper compound carried on a titanium oxide photocatalyst according to claim 7 , wherein the irradiation with light described above is carried out in an alcohol-containing atmosphere. 9. The production process for a copper compound carried on a titanium oxide photocatalyst according to claim 5 , wherein the titanium oxide described above is obtained by a vapor phase method.
Assignees
Inventors
Classifications
X-ray diffraction · CPC title
Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title
- B01J23/72Primary
Copper · CPC title
Reducing · CPC title
containing solids as carriers or diluents · CPC title
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- What does patent US9248432B2 cover?
- A copper compound-carried titanium oxide photocatalyst which is excellent in a photocatalytic activity and a viral inactivation property and a production process for the same can be provided by a copper compound-carried titanium oxide photocatalyst comprising titanium oxide in which a content of rutile type titanium oxide is 50% by mole or more and a monovalent copper compound and a divalent co…
- Who is the assignee on this patent?
- Hashimoto Kazuhito, Miyauchi Masahiro, Qiu Xiaoqing, and 7 more
- What technology area does this patent fall under?
- Primary CPC classification B01J23/72. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 02 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).