Preparation and application of aluminum-based MOF porous carbon materials with high specific surface area
A technology of porous carbon materials and high specific surface area, applied in the direction of carbon compounds, other chemical processes, separation methods, etc., can solve problems such as application limitations, and achieve the effect of strong adsorption force
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Embodiment 1
[0028] The preparation method of the aluminum-based MOF porous carbon material with high specific surface area in the present invention is effective for all aluminum-based MOF materials. In order to facilitate the comparison and description of the effect of the synthesis method of the aluminum-based MOF porous carbon material with high specific surface area described in the present invention, this Example 1 provides a method for preparing the MIL-100 (Al) material according to a conventional method, the specific preparation method as follows:
[0029] 3.75g Al(NO 3 )3.9H 2 O and 1.68g trimesic acid (H 3 BTC) was dissolved in 50mL deionized water, stirred at room temperature and slowly added 0.5mL DMF dropwise, then adjusted the pH to 1.7 with nitric acid, continued to stir for 15 minutes, then put it into a blast drying oven, and reacted at 200°C for 6h, and the reaction products were sequentially passed through Centrifuge, wash with ethanol, and dry under vacuum at 150°C f...
Embodiment 2
[0031] A method for preparing an aluminum-based MOF porous carbon material with a high specific surface area, comprising the steps of:
[0032] Disperse 0.5g of MIL-100(Al) material and 0.5g of sucrose carbon source in 2mL of ethanol, continue to stir evenly, then put it into a forced air drying oven at 60°C for 2h, then at 100°C for 4h, and then Maintain 160°C for 6h; finally put the mixture into a tube furnace, raise the temperature to 700°C at 5°C / min under the protection of nitrogen, and cool down after maintaining for 3h;
[0033]Add KOH (carbonized sample / KOH=1:3) to the carbonized sample, mix well and put it into a tube furnace, raise the temperature to 800°C at 5°C / min for 1h under the protection of nitrogen, then cool down; then use 1mol / min Washing with L hydrochloric acid, washing with water, and finally drying at 150°C for 8 hours in a vacuum to obtain an aluminum-based MOF porous carbon material with a high specific surface area.
Embodiment 3
[0035] A method for preparing an aluminum-based MOF porous carbon material with a high specific surface area, comprising the steps of:
[0036] Disperse 0.5g of MIL-100(Al) material and 0.5g of glucose carbon source in 2mL of ethanol, continue to stir evenly, and then put it in a blast drying oven at 50°C for 3h, then at 90°C for 7h, and then Maintain 150°C for 6h; finally put the mixture into a tube furnace, raise the temperature to 800°C at 5°C / min under the protection of nitrogen, and cool down after maintaining for 5h;
[0037] Add ZnCl to the carbonized sample 2 (carbonized sample / ZnCl 2 =1:4), mixed evenly, put into a tube furnace, heated up to 800°C at 5°C / min under nitrogen protection, maintained for 1h, cooled down; then washed with 1mol / L hydrochloric acid, washed with water, and finally vacuumed at 150°C After drying for 8 hours, an aluminum-based MOF porous carbon material with a high specific surface area is obtained.
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Abstract
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