Method for rapidly removing organic templating agent in mesoporous material with solvent extraction method
An organic template agent and mesoporous material technology, applied in chemical instruments and methods, inorganic chemistry, molecular sieve compounds, etc., can solve the problems of long process cycle, cumbersome operation steps, harsh experimental conditions, etc., to shorten the process cycle and simplify the operation. effect of steps
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Example Embodiment
[0019] Example 1
[0020] The first step of the implementation process of this embodiment is the same as the first step of the comparative example.
[0021] In the second step, 10 g of MSU was placed in 10 g of hydrochloric acid, acidified for 3 hours, and after filtration, it was placed in a Soxhlet extractor. Add 50g of methanol solvent and 5g of n-hexane additive to the three-necked flask at the bottom of the Soxhlet extractor. After the solvent has been refluxed for 12 hours, stop heating, cool to room temperature, take out the white MSU powder, and wash with deionized water for 3~5 Next, after drying at 110°C for 24 hours, the MSU mesoporous material was obtained. The measurement results of the specific surface, pore volume, and pore diameter are shown in Table 1. The quality results of MSU mesoporous materials before and after removing the template agent are shown in Table 1.
Example Embodiment
[0022] Example 2
[0023] The first step of the implementation process of this embodiment is the same as the first step of the comparative example.
[0024] In the second step, 10 g of MSU was placed in 20 g of hydrochloric acid, acidified for 6 hours, and after filtration, it was placed in a Soxhlet extractor. Add 70g of ethanol solvent and 8g of n-hexane auxiliary to the three-necked flask at the bottom of the Soxhlet extractor. After the solvent has been refluxed for 18 hours, stop heating, cool to room temperature, take out the white MSU powder, and wash with deionized water for 3~5 Next, after drying at 110°C for 24 hours, the MSU mesoporous material was obtained. The measurement results of the specific surface, pore volume, and pore diameter are shown in Table 1. The quality results of MSU mesoporous materials before and after removing the template agent are shown in Table 1.
Example Embodiment
[0025] Example 3
[0026] The first step of the implementation process of this embodiment is the same as the first step of the comparative example.
[0027] In the second step, 10g of MSU was placed in 40g of hydrochloric acid, acidified for 9 hours, and after filtration, it was placed in a Soxhlet extractor. Add 120g of ethanol solvent and 15g of n-octane additive to the three-necked flask at the bottom of the Soxhlet extractor. After the solvent has been refluxed for 24 hours, stop heating, cool to room temperature, take out the white MSU powder, and wash with deionized water for 3~ Five times, after drying at 110°C for 24 hours, the MSU mesoporous material was obtained. The measurement results of the specific surface, pore volume, and pore diameter are shown in Table 1. The quality results of MSU mesoporous materials before and after removing the template agent are shown in Table 1.
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