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Photocatalyst material and method for producing same
US2016332147A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016332147-A1 |
| Application number | US-201415109455-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 21, 2014 |
| Priority date | Jan 28, 2014 |
| Publication date | Nov 17, 2016 |
| Grant date | — |
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Abstract
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To provide a photocatalyst material having alkaline resistance and showing less deterioration in photocatalyst performance due to a poisoning effect and to provide a method for producing the photocatalyst material, a photocatalyst material ( 1 A) according to one embodiment of the present invention includes: core particles ( 2 ) containing tungsten oxide; a promoter ( 4 ) formed on the surface of the core particles ( 2 ); and a shell layer ( 3 ) made of titanium oxide and covering the entire surface of both the core particles ( 2 ) and the promoter ( 4 ).
First claim
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1 . A photocatalyst material comprising: core particles containing tungsten oxide; a promoter formed on the surface of the core particles; and a shell layer made of titanium oxide and covering the entire surface of both the core particles and the promoter. 2 . The photocatalyst material according to claim 1 , wherein the promoter formed on the surface of the core particles comprises a plurality of types of promoters. 3 . The photocatalyst material according to claim 1 , wherein the core particles are composed of a mixture of the tungsten oxide and copper oxide. 4 . The photocatalyst material according to claim 1 , wherein each of the core particles covered with the shell layer comprises a plurality of core particles. 5 . The photocatalyst material according to claim 1 , wherein the promoter is one of a metal and a metal compound that include at least one of copper, platinum, palladium, iron, silver, gold, nickel, ruthenium, iridium, niobium, and molybdenum. 6 . The photocatalyst material according to claim 1 , wherein the shell layer is made of crystalline titanium oxide. 7 . A method for producing a photocatalyst material, the method comprising: a formation step of forming a promoter on the surface of core particles containing tungsten oxide; and a covering step of, after the formation step, covering the entire surface of both the core particles and the promoter with a shell layer made of titanium oxide.
Assignees
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Classifications
of ultraviolet wave energy · CPC title
- B01J23/6527Primary
Tungsten · CPC title
of metal substrates · CPC title
Titanium; Oxides or hydroxides thereof · CPC title
Coatings comprising several layers · CPC title
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- What does patent US2016332147A1 cover?
- To provide a photocatalyst material having alkaline resistance and showing less deterioration in photocatalyst performance due to a poisoning effect and to provide a method for producing the photocatalyst material, a photocatalyst material ( 1 A) according to one embodiment of the present invention includes: core particles ( 2 ) containing tungsten oxide; a promoter ( 4 ) formed on the surface …
- Who is the assignee on this patent?
- Sharp Kk
- What technology area does this patent fall under?
- Primary CPC classification B01J23/6527. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Nov 17 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).