A kind of borane anion supramolecular organic framework material and its preparation method and application
An organic framework and anion technology, which is applied in the field of borane anion supramolecular organic framework materials and their preparation, can solve problems such as instability and inability to synthesize materials, and achieve good stability and high separation selectivity
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Embodiment 1
[0052] In a 50mL round bottom flask, will contain 242mg (1mmol) of Cu(NO 3 )·3H 2 O and 212 mg (1 mmol) of Na 2 B 12 h 12 Dissolve in 10ml of water. In another 25 mL round bottom flask, 360 mg (2 mmol) of 4,4'-bipyridylacetylene was dissolved in 15 mL of methanol. The methanol solution was slowly added to the aqueous solution, and stirred at 25°C for 24 hours to obtain a purple solid precipitate, which was filtered and washed with methanol. The above solid was replaced in anhydrous methanol 3 times, with an interval of 6 hours each time, to remove the water molecules in the pores of the material, and then vacuumed and degassed at 100°C for 12 hours to obtain a borane anion supramolecular organic framework material for gas separation. Named BSF-1 (borate-based supramolecular framework).
[0053] figure 2 It is a schematic diagram of the crystal structure of BSF-1. In the structure, copper is coordinated to four different pyridine rings in the horizontal direction, and t...
Embodiment 2
[0057] In a 50 mL round bottom flask, 291 mg (1 mmol) of Co(NO 3 )·6H 2 O and 212 mg (1 mmol) of Na 2 B 12 h 12 Dissolve in 10ml of water. In another 25 mL round bottom flask, 312 mg (2 mmol) of 4,4'-bipyridine was dissolved in 15 mL of acetone. The acetone solution was slowly added to the aqueous solution, and stirred at 50° C. for 48 h to obtain a yellow solid precipitate, which was filtered and washed with acetone. Replace the above solid in anhydrous acetone for 3 times, with an interval of 6 hours each time, to remove the water molecules in the pores of the material, and then activate it by vacuuming and degassing at 60°C for 24 hours to obtain a borane anion supramolecular organic framework material for gas separation. Named BSF-2.
[0058] The activated BSF-2 was measured at 298K for the single-component adsorption curves of propane, ethane, and methane, and the isothermal adsorption curves of BSF-2 for the above gases were calculated and fitted using the Clausian...
Embodiment 3
[0061] In a 50 mL round bottom flask, 291 mg (1 mmol) of Co(NO 3 )·6H 2 O and 174 mg (1 mmol) of Na 2 B 10 h 10 Dissolve in 10ml of water. In another 25 mL round bottom flask, 312 mg (2 mmol) of 4,4'-bipyridine was dissolved in 15 mL of acetone. The acetone solution was slowly added into the aqueous solution, and stirred at 80° C. for 24 h to obtain a yellow solid precipitate, which was filtered and washed with acetone. Replace the above solid in anhydrous acetone 3 times, with an interval of 6 hours each time, to remove the water molecules in the pores of the material, and then activate it by vacuuming and degassing at 60°C for 12 hours to obtain a borane anionic supramolecular organic framework material, named BSF-3 .
[0062] The activated BSF-3 was measured at 298K for the single-component adsorption curves of carbon dioxide and methane, and the isotherm adsorption curves of BSF-3 for the above gases were calculated and fitted using the Clausians-Clapeyron equation. ...
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