A preparation method and application of an organic-inorganic mixed matrix membrane doped with a zeolite imidazolate framework porous carbon nanomaterial
A technology of zeolite imidazolate and mixed matrix membrane, which is applied in the direction of separation methods, chemical instruments and methods, membrane technology, etc., to achieve the effects of strong adsorption capacity, improved permeability, and accelerated delivery
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Embodiment 1
[0031] Embodiment 1: prepare the mixed matrix membrane that adds the zeolite imidazolate material of 1.5wt% nickel doping, the steps are as follows:
[0032] Step 1, the preparation of the zeolite imidazolate material doped with nickel:
[0033]Dissolve zinc nitrate hexahydrate, nickel nitrate hexahydrate, and 2-methylimidazole in methanol solution to prepare solutions with concentrations of 0.1mol / L, 0.1mol / L, and 0.8mol / L, respectively, and then put them into 4A molecular sieves Leave standstill 12h to remove excess moisture, obtain the methanol solution (named solution A) of zinc nitrate hexahydrate, the methanol solution (named solution B) of nickel nitrate hexahydrate and the methanol solution (named solution C) of 2-methylimidazole ); then, pour solution A, solution B and solution C into a three-necked flask, stir at 30°C for 48 hours to undergo a chemical reaction, centrifuge the resulting solution for 20 minutes at a speed of 10,000 rpm, and wash the lower precipitate ...
Embodiment 2
[0039] Embodiment 2: Prepare the mixed matrix membrane that adds 1.5wt% zeolite imidazolate framework porous carbon nanomaterial, the steps are as follows:
[0040] Step 1, the preparation of the zeolite imidazolate material doped with nickel:
[0041] Dissolve zinc nitrate hexahydrate, nickel nitrate hexahydrate, and 2-methylimidazole in methanol solution to prepare solutions with concentrations of 0.1mol / L, 0.1mol / L, and 0.8mol / L, respectively, and then put them into 4A molecular sieves Leave standstill 12h to remove excess moisture, obtain the methanol solution (named solution A) of zinc nitrate hexahydrate, the methanol solution (named solution B) of nickel nitrate hexahydrate and the methanol solution (named solution C) of 2-methylimidazole ); then, pour solution A, solution B and solution C into a three-necked flask, stir at 30°C for 48 hours to undergo a chemical reaction, centrifuge the resulting solution for 20 minutes at a speed of 10,000 rpm, and wash the lower prec...
Embodiment 3
[0049] Embodiment 3: preparation adds the mixed matrix membrane of 0.5wt% zeolite imidazolate framework porous carbon nanomaterial, steps are as follows:
[0050] Step 1, the preparation of the zeolite imidazolate material doped with nickel:
[0051] Dissolve zinc nitrate hexahydrate, nickel nitrate hexahydrate, and 2-methylimidazole in methanol solution to prepare solutions with concentrations of 0.1mol / L, 0.1mol / L, and 0.8mol / L, respectively, and then put them into 4A molecular sieves Leave standstill 12h to remove excess moisture, obtain the methanol solution (named solution A) of zinc nitrate hexahydrate, the methanol solution (named solution B) of nickel nitrate hexahydrate and the methanol solution (named solution C) of 2-methylimidazole ); then, pour solution A, solution B and solution C into a three-necked flask, stir at 30°C for 48 hours to undergo a chemical reaction, centrifuge the resulting solution for 20 minutes at a speed of 10,000 rpm, and wash the lower precip...
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