Cyclodextrin-based aza-ordered mesoporous carbon preparation method and application
A cyclodextrin and ordered mesoporous technology, which is applied in the field of preparation of aza-ordered mesoporous carbon, achieves the effect of easy-to-obtain raw materials, large specific surface area, and regular and orderly morphology
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Embodiment 1
[0027] A preparation method of cyclodextrin-based aza-ordered mesoporous carbon, the steps are as follows:
[0028] 1) Add 1.14g of β-cyclodextrin and 0.57g of melamine to 5mL of 2.7wt% sulfuric acid solution respectively, and stir at room temperature to obtain a mixed solution;
[0029] 2) Add 1g of SBA-11 to the above mixture, stir evenly, raise the temperature to 110°C, keep for 5h, then raise the temperature to 180°C, keep for 5h to obtain a black solid a;
[0030] 3) Add 0.73g of β-cyclodextrin and 0.37g of guanidine sulfamate into 5mL of 1.8wt% sulfuric acid solution, stir well, add the above black solid a, raise the temperature to 110°C, keep it for 5h, then raise the temperature to 180°C , kept for 5h to obtain black solid b;
[0031] 4) Put the above black solid b in a nitrogen-protected tube furnace and raise it to 600°C at 1°C / min, keep it for 3h, then rise it to 900°C at 5°C / min, keep it for 2h, cool to room temperature, and then grind it into powder, add 10mL of...
Embodiment 2
[0040] A preparation method of cyclodextrin-based aza-ordered mesoporous carbon, the steps are as follows:
[0041] 1) Add 1.14g of β-cyclodextrin and 0.11g of guanidine sulfamate to 5mL of 2.7wt% sulfuric acid solution respectively, and stir at room temperature to obtain a mixed solution;
[0042] 2) Add 1g of SBA-15 to the above mixture, stir evenly, raise the temperature to 100°C, keep it for 10h, then raise the temperature to 160°C, keep it for 10h to get a black solid a;
[0043] 3) Add 0.73g of β-cyclodextrin and 0.07g of guanidine sulfamate into 5mL of 1.8wt% sulfuric acid solution, stir well, add the above black solid a, raise the temperature to 100°C, keep it for 10h, then raise the temperature to 160°C , kept for 10h to obtain black solid b;
[0044] 4) Put the above black solid b in a nitrogen-protected tube furnace and raise it to 600°C at 1°C / min, keep it for 3h, then rise it to 900°C at 5°C / min, keep it for 2h, cool to room temperature, and then grind it into P...
Embodiment 3
[0050] A preparation method of cyclodextrin-based aza-ordered mesoporous carbon, the steps are as follows:
[0051] 1) Add 1.14g of β-cyclodextrin and 0.11g of dicyandiamide into 5mL of 2.7wt% sulfuric acid solution respectively, and stir at room temperature to obtain a mixed solution;
[0052] 2) Add 1g of MCM-48 to the above mixture, stir evenly, raise the temperature to 80°C, keep it for 10h, then raise the temperature to 140°C, keep it for 10h to get a black solid a;
[0053] 3) Add 0.73g of β-cyclodextrin and 0.07g of dicyandiamide into 5mL of 1.8wt% sulfuric acid solution respectively, stir evenly, add the above black solid a, raise the temperature to 80°C, keep it for 10h, then raise the temperature to 140°C, Keep for 10h to obtain black solid b;
[0054] 4) Put the above black solid b in a nitrogen-protected tube furnace and raise it to 600°C at 1°C / min, keep it for 3h, then rise it to 900°C at 5°C / min, keep it for 2h, cool to room temperature, and then grind it into ...
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