Method for preparing rutile-type porous TiO2 nanometer photocatalyst at room temperature
A nano-photocatalyst, a technology for preparing gold, applied in chemical instruments and methods, physical/chemical process catalysts, titanium dioxide, etc., can solve the problems of complex conditions and high energy consumption, achieve continuous network and porous structure, large specific surface area, reaction Conditionally controllable effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
example 1
[0020] Add 40 mL of absolute ethanol to the beaker and place it in an ice-water bath, slowly add 2 mL of titanium tetrachloride dropwise, after stirring for 10 min, add 1 mL of deionized water dropwise, and continue stirring for 2 h at room temperature to obtain a titanium sol; After the titanium sol was placed in an ice-water bath, 6 ml of propylene oxide was added dropwise to form a titanium gel; a certain amount of absolute ethanol was used to exchange the water in the gel for 4 times within 24 h; Exchange the ethanol in the gel 4 times within 24 h; then immerse the solvent-exchanged and aged titanium gel in a mixed solution of trimethylchlorosilane / isopropanol / n-hexane with a volume ratio of 1:1:20 , surface modification and acidic liquid phase crystallization at 30°C for 24h; after the reaction, wash the unreacted substances with a certain amount of n-hexane, wash with alcohol, centrifuge, and dry at room temperature at 60°C to obtain rutile porous TiO 2 Nanophotocatalyst...
example 2
[0022] Add 60 mL of absolute ethanol to the beaker and place it in an ice-water bath, slowly add 4 mL of titanium tetrachloride dropwise, stir for 10 min, then add 2 mL of deionized water dropwise, and continue stirring for 2 h at room temperature to obtain titanium sol ; After the titanium sol was placed in an ice-water bath, 12 ml of propylene oxide was added dropwise to form a titanium gel; a certain amount of absolute ethanol was used to exchange the water in the gel for 4 times within 24 h; continue to use a certain amount of n-hexane The ethanol in the gel was exchanged for 4 times within 24 h; then the solvent-exchanged and aged titanium gel was immersed in a mixed solution of trimethylchlorosilane / isopropanol / n-hexane with a volume ratio of 1:1:15 surface modification and crystallization in acidic liquid phase at 40°C for 24 hours; after the reaction, wash unreacted substances with a certain amount of n-hexane, wash with alcohol, centrifuge, and dry at room temperature ...
example 3
[0024] Add 30 mL of absolute ethanol into the beaker and place it in an ice-water bath, slowly add 1.5 mL of titanium tetrachloride dropwise, stir for 10 min, then add 1 mL of deionized water dropwise, and continue stirring for 2 h at room temperature to obtain titanium sol ; After the titanium sol was placed in an ice-water bath, 8 ml of propylene oxide was added dropwise to form a titanium gel; a certain amount of absolute ethanol was used to exchange the water in the gel for 4 times within 24 h; The ethanol in the gel was exchanged for 4 times within 24 h; then the solvent-exchanged and aged titanium gel was immersed in a mixed solution of trimethylchlorosilane / isopropanol / n-hexane with a volume ratio of 1:1:8 surface modification and crystallization in acidic liquid phase at 40°C for 24 hours; after the reaction, wash unreacted substances with a certain amount of n-hexane, wash with alcohol, centrifuge, and dry at room temperature at 60°C to obtain rutile-type porous TiO 2...
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More