Water-insoluble cyclodextrin-based metal organic framework material and preparation method thereof
An organic framework, cyclodextrin technology, applied in chemical instruments and methods, other chemical processes, water/sewage treatment, etc., can solve problems such as poor adsorption capacity of wastewater pollutants, and achieve rapid removal and mild production conditions. , the effect of a wide range of raw materials
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Embodiment 1
[0045] A water-insoluble cyclodextrin-based metal organic framework material and a preparation method thereof, the preparation steps are as follows:
[0046] Step 1: Put γ-cyclodextrin (1.3g) and potassium chloride (0.6g) in beaker 1, and use 18mL of deionized water to ultrasonically dissolve to obtain clear solution 1; meanwhile, hexachlorocyclotriphosphazene (1.3 g) Place in beaker 2, add 20mL of N,N-dimethylformamide and ultrasonically dissolve to obtain clear solution 2; add solution 2 to solution 1 drop by drop, ultrasonically treat the two solutions to mix them into a clear solution, and add 18 mL of methanol was used as the crystallization inducing molecule to obtain clear solution 3.
[0047] Step 2: After step 1 is completed, the solution 3 is crystallized in a constant temperature environment at -10°C for 24 hours to obtain crystals. The crystals were collected, washed three times with methanol, and dried in vacuum at 30°C for 8h.
[0048] Step 3: After the reactio...
Embodiment 2
[0053] A water-insoluble cyclodextrin-based metal organic framework material and a preparation method thereof, the preparation steps are as follows:
[0054] Step 1: Put α-cyclodextrin (1g) and potassium chloride (0.3g) in beaker 1, and use 19mL of deionized water to ultrasonically dissolve to obtain clear solution 1; at the same time, hexachlorocyclotriphosphazene (0.2g ) was placed in beaker 2, and 20mL of N,N-dimethylformamide was added for ultrasonic dissolution to obtain clear solution 2; Methanol was used as the crystallization inducing molecule, resulting in a clear solution 3.
[0055] Step 2: After step 1 is completed, the solution 3 is crystallized in a constant temperature environment of 10° C. for 72 hours to obtain crystals. The crystals were collected, washed three times with methanol, and dried in vacuum at 35°C for 8h.
[0056] Step 3: After the reaction in step 2 is completed, put 90mL of N,N-dimethylformamide in a round bottom flask, and add crystals (5g), ...
Embodiment 3
[0060] A water-insoluble cyclodextrin-based metal organic framework material and a preparation method thereof, the preparation steps are as follows:
[0061] Step 1: Put β-cyclodextrin (1.2g) and potassium nitrate (0.4g) in beaker 1, and ultrasonically dissolve with 20mL deionized water to obtain clear solution 1; at the same time, put phthaloyl chloride (1.6g) in To beaker 2, add 20mL of N,N-dimethylformamide to ultrasonically dissolve to obtain clear solution 2; add solution 2 dropwise to solution 1, sonicate to make the two solutions evenly mix into a clear solution, and add 22mL of ethanol as crystallization Inducing the molecule, a clear solution 3 was obtained.
[0062] Step 2: After step 1 is completed, the solution 3 is crystallized in a constant temperature environment of 10° C. for 24 hours to obtain crystals. The crystals were collected, washed three times with methanol, and dried under vacuum at 40°C for 5h.
[0063] Step 3: After the reaction in step 2 is comple...
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