Gly-Ni-dobdc adsorbent, and preparation method and application thereof
A technology of gly-ni-dobdc and adsorbent, which is applied in the field of Gly-Ni-dobdc adsorbent and its preparation, can solve the problem of unsatisfactory separation effect of mixed gas, and achieve the effect of easy realization, good repeatability and simple operation
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Embodiment 1
[0035] (1) Gly (0.52mmol, n 1 ) and Ni(CH 3 COO) 2 4H 2 O(5.2mmol, n 2 ) dissolved in deionized water (30ml, n 3 ), fully stirred to obtain Gly and Ni 2+ Mixed solution; 2,5-dihydroxyterephthalic acid (dobdc, 2.63mmol, n 4 ) dissolved in tetrahydrofuran (35ml, n 5 ), fully stirred to obtain dobdc solution. The proportion of the amount of each substance is n 1 :n 2 :n 4 = 0.1:1:0.5; n 3 :n 5 =1:1.2
[0036] (2) Add the dobdc solution obtained in step (1) to Gly and Ni 2+ In the mixed solution, stir and mix evenly to obtain a reaction solution, transfer it to a reaction kettle, put it in a constant temperature drying oven at 100°C, and react for 65 hours to obtain a reaction product, filter the solution with an organic filter membrane, and soak the solid product in ethanol , filtered and dried to give a brown solid powder.
[0037] (3) Vacuum activate the solid powder obtained in step (2) at 200°C for 12 hours to obtain the Gly-Ni-dobdc adsorbent material, denoted...
Embodiment 2
[0039] (1) Gly (1.56mmol, n 1 ) and Ni(CH 3 COO) 2 4H 2 O(5.2mmol, n 2 ) dissolved in deionized water (35ml, n 3 ), fully stirred to obtain Gly and Ni 2+ Mixed solution; 2,5-dihydroxyterephthalic acid (dobdc, 2.34mmol, n 4 ) dissolved in tetrahydrofuran (35ml, n 5 ), fully stirred to obtain dobdc solution. The proportion of the amount of each substance is n 1 :n 2 :n 4 =0.3:1:0.45; n 3 :n 5 =1:1
[0040] (2) Add the dobdc solution obtained in step (1) to Gly and Ni 2+ In the mixed solution, stir and mix evenly to obtain a reaction solution, transfer it to a reaction kettle, put it in a constant temperature drying oven at 110°C, and react for 75 hours to obtain a reaction product, filter the solution with an organic filter membrane, and soak the solid product in ethanol , filtered and dried to give a brown solid powder.
[0041] (3) Vacuum activate the solid powder obtained in step (2) at 250°C for 8h to obtain Gly-Ni-dobdc adsorbent material, denoted as Gly 0.3...
Embodiment 3
[0043] (1) Gly (2.6mmol, n 1 ) and Ni(CH 3 COO) 2 4H 2 O(5.2mmol, n 2 ) dissolved in deionized water (40ml, n 3 ), fully stirred to obtain Gly and Ni 2+ Mixed solution; 2,5-dihydroxyterephthalic acid (dobdc, 3.64mmol, n 4 ) dissolved in tetrahydrofuran (35ml, n 5 ), fully stirred to obtain dobdc solution. The proportion of the amount of each substance is n 1 :n 2 =0.5:1:0.7; n 3 :n 5 =1:0.9
[0044] (2) Add the dobdc solution obtained in step (1) to Gly and Ni 2+ In the mixed solution, stir and mix evenly to obtain a reaction solution, transfer it to a reaction kettle, put it in a constant temperature drying oven at 115°C, and react for 70 hours to obtain a reaction product, filter the solution with an organic filter membrane, and soak the solid product in ethanol , filtered and dried to give a brown solid powder.
[0045] (3) Vacuum activate the solid powder obtained in step (2) at 220°C for 10 hours to obtain the Gly-Ni-dobdc adsorbent material, denoted as Gly ...
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