Copper ion-modified titanium oxide and process for producing the same, and photocatalyst
A technology of copper ion and titanium oxide, which is applied in the field of titanium oxide, can solve problems such as inappropriateness and achieve good catalytic activity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0077] A reactor equipped with a reflux condenser was charged with 690 ml of distilled water, and 60 g of an aqueous solution of titanium trichloride (20% by mass solution; density: 1.23 g / ml) was added dropwise to the reactor at a rate of 1 g / min. in the reactor. Thereafter, while bubbling the contents of the reactor with oxygen supplied through an ozone generator, the temperature in the reactor was raised to 101° C. over 30 minutes, and then maintained at 101° C. for 90 minutes. The resulting sol was subjected to a dechlorination treatment using an electrodialysis device until the pH of the sol reached 4. To 200 ml of the resulting slurry solution (powder content: 1.5 g), add 0.5 ml of copper chloride aqueous solution (equivalent to TiO in terms of copper) 2 0.1% by mass). Then, the resulting mixture was heat-treated at 90° C. for 1 hour while being stirred, and then allowed to stand to cool it to room temperature. The resulting reaction mixture was washed by centrifugati...
Embodiment 2
[0080] A reactor equipped with a reflux condenser was charged with 690 ml of distilled water, which was heated to 95°C and kept at the same temperature. Then, 60 g of an aqueous titanium tetrachloride solution (Ti content: 17.0% by mass; specific gravity: 1.52) was added dropwise to the reaction at a rate of 1 g / min while continuously stirring the contents of the reactor at a rate of 300 rpm. device. The reaction solution in the reactor started to turn white and cloudy immediately after the dropwise addition was started, but it was kept like this at its temperature. After the dropwise addition was completed, the reaction solution was further heated to a temperature close to its boiling point, and kept at this temperature for 60 minutes. The resulting sol was subjected to a dechlorination treatment using an electrodialysis device until the pH of the sol reached 4. To 100 ml of the resulting slurry solution (powder content: 1.5 g), add 0.5 ml of copper chloride aqueous solutio...
Embodiment 3
[0082] A reactor equipped with a reflux condenser was charged with 690 ml of distilled water, and 60 g of an aqueous solution of titanium tetrachloride (Ti content: 17.0% by mass; specific gravity: 1.52) was added dropwise to the reaction at a rate of 1 g / min. device. Thereafter, the contents of the reactor were heated to 101°C and then held at 101°C for 120 minutes. The resulting sol was subjected to dechlorination treatment using an electrodialysis device until the pH of the sol reached 4. To 200 ml of the resulting slurry solution (powder content: 1.5 g), add 0.5 ml of copper chloride aqueous solution (equivalent to TiO in terms of copper) 20.1% by mass). Then, the resulting mixture was heat-treated at 90° C. for 1 hour while being stirred, and then allowed to stand to cool it to room temperature. The resulting reaction mixture was washed by centrifugation to recover the reaction product. The reaction product thus recovered was dried at 120° C. for 24 hours, and then pu...
PUM
| Property | Measurement | Unit |
|---|---|---|
| size | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More