a doped tio 2 Preparation method of cotton fiber composite carbon airgel
A technology of carbon airgel and cotton fiber, which is applied in the direction of airgel preparation, chemical instruments and methods, colloid chemistry, etc., can solve the problems of high cost and high toxicity, and achieve low cost, enhanced strength, enhanced hydrophobicity and photosensitivity effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0030] Take 1g of rags and add 50ml of deionized water, transfer it to a hydrothermal reaction kettle at the same time, heat at 280°C for 4 hours to obtain a liquid, after cooling, add 1.5g of chitosan to the above solution, add an appropriate amount of deionized water, and magnetically Stir to obtain the mixture, add glacial acetic acid of 2% of the mass of the mixture dropwise to a viscous sol, add 5ml epichlorohydrin, 0.75g graphene, 25mg nanometer TiO 2 , the volume of the mixed gel is about 50ml, put it on a magnetic stirrer and stir evenly for 4 hours, let it stand for 2 hours, pour the gel into the prepared mold and freeze for 24 hours. Dry the frozen gel in a vacuum freeze dryer at -50--10°C for 24 hours to obtain airgel, place the airgel in an aluminum crucible and heat it to 550°C at a rate of 5°C / min for 2 hours, And after holding for half an hour, you can get doped TiO 2 Cotton fiber composite carbon airgel. Depend on figure 1 It can be seen that the prepared ca...
Embodiment 2
[0032] Take 1.5g of rags and add 50ml of deionized water, transfer it to a hydrothermal reaction kettle at the same time, heat at 300°C for 3 hours to obtain a liquid, after cooling, add 1.5g of chitosan to the above solution, and add an appropriate amount of deionized water, Magnetic stirring is obtained the mixture, and glacial acetic acid of 2% of the mass of the mixture is added dropwise to a viscous sol, and 4ml epichlorohydrin, 0.75g graphene, 40mg nanometer TiO are added at the same time 2 , the volume of the mixed gel is about 40ml, put it on a magnetic stirrer and stir evenly for 4 hours, let it stand for 2 hours, pour the gel into the prepared mold and freeze for 24 hours. Dry the frozen gel in a vacuum freeze dryer at -50—-10°C for 24 hours to obtain airgel, place the airgel in an aluminum crucible and heat it to 450°C at a rate of 5°C / min for 2 hours, And after holding for half an hour, you can get doped TiO 2 Cotton fiber composite carbon airgel. Depend on fig...
Embodiment 3
[0034] Take 3g of rags and add it to 50ml of deionized water, transfer it to a hydrothermal reaction kettle at the same time, heat at 350°C for 2 hours to obtain a liquid, after cooling, add 1.0g of chitosan to the above solution, and add an appropriate amount of deionized water, Magnetic stirring was obtained to obtain the mixture, and 2% glacial acetic acid of the mass of the mixture was added dropwise to a viscous sol, while 4ml of epichlorohydrin, 0.5g of graphene, and 80mg of nano-TiO were added 2 , the volume of the mixed gel is about 40ml, put it on a magnetic stirrer and stir evenly for 5 hours, let it stand for 2 hours, pour the gel into the prepared mold and freeze for 24 hours. Dry the frozen gel in a vacuum freeze dryer at -50—-10°C for 24 hours to obtain airgel, place the airgel in an aluminum crucible and heat it to 350°C at a rate of 5°C / min for 2 hours, And after holding for half an hour, you can get doped TiO 2 Cotton fiber composite carbon airgel. For doped...
PUM
| Property | Measurement | Unit |
|---|---|---|
| concentration | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More