A kind of preparation method of porous graphene
A porous graphene and graphene technology, applied in the field of graphene, can solve problems such as difficult wastewater treatment, increased environmental pollution and treatment costs, and increased cost of graphene, so as to achieve cost savings, easy realization of large-scale production, energy density and The effect of excellent magnification performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0031] A preparation method of porous graphene, comprising the steps of:
[0032] 1) Measure 150mL of concentrated sulfuric acid and pour it into a 500ml beaker, put the beaker in an ice bath and cool it below 1°C, weigh 5g of graphite powder into the beaker, stir and react for 1 hour, then slowly add 10g of potassium permanganate to control the temperature Not exceeding 4°C, the reaction time is about 2 hours;
[0033] 2) Then add 0.5g of potassium ferrate and continue to react for 2h to oxidize the graphite oxide for the second time to locally corrode the surface.
[0034] 3) Move the beaker to a constant temperature oil bath, control the temperature at 38°C, and react for 0.5h. Finally, slowly add 100mL of deionized water to the resulting mixture. After reacting for 30min, add 5mL (0.5mol / L) of hydrogen peroxide, and mix with the solution Fe after the reaction of potassium ferrate 2+ The reaction generates Fenton's reagent, the pH value is controlled to 2, and the obtaine...
Embodiment 2
[0039] A preparation method of porous graphene, comprising the steps of:
[0040] 1) Measure 150mL of concentrated sulfuric acid and pour it into a 500ml beaker, put the beaker in an ice bath and cool it below 1°C, weigh 5g of graphite powder into the beaker, add 15g of potassium permanganate slowly after 5 hours, and control the temperature not to exceed 4 ℃, the total reaction time is about 12h;
[0041] 2) Then add 20g of potassium ferrate and continue the reaction for 0.1h to oxidize the graphite oxide for the second time to make the surface corrode locally.
[0042] 3) Move the beaker to a constant temperature oil bath, control the temperature at 38°C, and react for 0.2h. Finally, slowly add 100mL of deionized water to the resulting mixture. After reacting for 40min, add 6.3mL (2mol / L) of hydrogen peroxide, and mix with the solution Fe after the reaction of potassium ferrate 2+ The reaction generates Fenton’s reagent, and the pH of the reaction system is controlled betw...
Embodiment 3
[0048] A preparation method of porous graphene, comprising the steps of:
[0049] 1) Measure 150mL of concentrated sulfuric acid and pour it into a 500ml beaker, put the beaker in an ice bath and cool it below 1°C, weigh 5g of graphite powder and put it into the beaker, slowly add 50g of potassium permanganate after 2 hours, and control the temperature not to exceed 4 ℃, the total reaction time is about 3h;
[0050] 2) Then add 30g of potassium ferrate and continue the reaction for 48h to oxidize the graphite oxide for the second time to make the surface corrode locally.
[0051] 3) Move the beaker to a constant temperature oil bath, control the temperature at 38°C, and react for 0.8 hours. Finally, slowly add 100 mL of deionized water to the resulting mixture. After 10 minutes of reaction, add 38 mL (1mol / L) of hydrogen peroxide, and mix with the solution Fe after potassium ferrate reaction 2+ The reaction generates Fenton reagent, the pH of the reaction system is controlle...
PUM
| Property | Measurement | Unit |
|---|---|---|
| purity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More