A kind of molecular sieve porous copper metal organic framework material and its preparation method and application
A metal-organic framework, porous copper technology, applied in separation methods, copper-organic compounds, chemical instruments and methods, etc., can solve the complex cost of ligands and other problems
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[0032] The present invention also provides a method for preparing a molecular sieve-like porous copper metal-organic framework material, comprising:
[0033] Step 1: Copper iodide, organic ligand 3,5-pyridine dicarboxylic acid (C 7 h 5 NO 4 , 3,5-PDC) and triethylenediamine (C 6 h 12 N 2 , DABCO) was dissolved in an organic solvent, then added dilute nitric acid aqueous solution, and reacted at 75-105° C. for 12-72 hours to obtain a crude product of porous copper metal-organic framework material; the cuprous iodide, organic ligand 3,5 -The molar ratio of pyridinedicarboxylic acid and triethylenediamine is preferably 1:(0.66~1.33):(1.44~2.0); the organic solvent is N,N'-dimethylformamide, dimethylmethylene A mixed solution of one or more of sulfone or N,N'-dimethylacetamide and acetonitrile; there is no special limitation on the amount of organic solvent, it can be added according to the commonly used amount in this field, and the dilute nitric acid aqueous solution The c...
Embodiment 1
[0042] Convert 9.0×10 -5 mol cuprous iodide and 9.0×10 -5 mol of organic ligand 3,5-PDC dissolved in 3.9×10 - 2 mol N,N'-dimethylformamide and 3.9×10 -2 mol of acetonitrile mixed solvent, add 1.6×10 -4 mol of triethylenediamine, under stirring, add homemade 2mol / L dilute nitric acid aqueous solution until completely dissolved, put the solution at 85°C for 72 hours, and obtain the crude product of porous copper metal organic framework;
[0043] With the configured 3.9×10 -2 mol N,N'-dimethylformamide and 3.9×10 -2 The mixed solvent composed of mol acetonitrile washed the synthesized porous copper metal organic framework material and dried it at 80° C. for 10 h to obtain a green porous copper metal organic framework crystal with a yield of 89% (calculated based on the amount of metal);
[0044] Soak porous copper metal-organic framework crystals in acetonitrile for 2 days, replace with fresh acetonitrile and soak again, repeat this cycle twice, after filtration, vacuumize ...
Embodiment 2
[0050] Convert 9.0×10 -5 mol cuprous iodide and 6.0×10 -5 mol of organic ligand 3,5-PDC dissolved in 3.9×10 - 2 mol N,N'-dimethylformamide and 3.9×10 -2 mol of acetonitrile in the mixed solvent, add 1.3×10 -4 mol of triethylenediamine, under stirring, add homemade 2mol / L dilute nitric acid aqueous solution until completely dissolved, put the solution at 85°C for 72 hours, and obtain the crude product of porous copper metal organic framework;
[0051] configured with a 3.9×10 -2 mol N,N'-dimethylformamide and 3.9×10 -2 The mixed solvent composed of mol acetonitrile was washed with the crude porous copper metal organic framework material and then dried at 80° C. for 10 h to obtain a green porous copper metal organic framework crystal with a yield of 40% (calculated based on the amount of metal);
[0052] Soak porous copper metal-organic framework crystals in acetonitrile for 2 days, replace with fresh acetonitrile and soak again, repeat this cycle twice, after filtration, ...
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