A kind of superhydrophobic cu-mofs and its preparation method and the application of increasing NO loading and delaying release
A technology of ultrasonic waves and reaction solvents, which is applied in the direction of pharmaceutical formulas, medical preparations with non-active ingredients, medical preparations containing active ingredients, etc., can solve the problems of toxic reagents, complicated methods, and long time consumption, and achieve short time consumption, The effect of smooth particle surface and good dispersion
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[0056] According to one aspect of the present invention, the present invention relates to a preparation method of Cu-MOFs, comprising the following steps:
[0057] The precursor solution of Cu-MOFs is subjected to hydrothermal reaction at 100~180℃ for 30~90min, washed and dried;
[0058] Wherein, the precursor liquid contains an organic ligand, a copper source and a reaction solvent, and the organic ligand includes trimesic acid and 2-aminoterephthalic acid.
[0059] The invention proposes a relatively direct and simple one-step hydrothermal method to prepare Cu-MOFs particles, and obtains uniformly dispersed massive particles with a particle size of about 100-200 nm.
[0060]In one embodiment, the precursor liquid of Cu-MOFs is subjected to hydrothermal reaction at 100-180°C, and 100°C, 110°C, 120°C, 130°C, 140°C, 150°C, and 160°C can also be selected. , 170°C or 180°C.
[0061] In one embodiment, the time of the hydrothermal reaction is 30-90 minutes, and 30 minutes, 40 mi...
Embodiment 1
[0111] The preparation method of Cu-MOFs particles includes the following steps:
[0112] Weigh 1g (4.7mmol) of trimesic acid and dissolve it in 12mL of UP water and 30mL of ethanol by ultrasonic until transparent. After the dissolution is completed, add 1g (5.5mmol) of 2-aminoterephthalic acid, and ultrasonically dissolve to a flocculent yellow precipitate, then Continue to add 2mL UP water and 20mL C 2 H 5 OH, 1.7 g (11.8 mmol) copper nitrate (Cu(NO 3 ) 2 ·6H 2 O) Ultrasonic dissolving for 20min, until dark gray flocculent precipitation is produced, thus obtaining the precursor solution for hydrothermal growth of Cu-MOFs; followed by the hydrothermal growth of Cu-MOFs, take 35mL of the prepared precursor solution, and add a high pressure reaction solution with a volume of 50mL In the autoclave, the autoclave was closed and placed in an oven at 140 °C to start the hydrothermal growth of Cu-MOFs for 60 min. Then, the autoclave was taken out from the oven, cooled to room te...
Embodiment 2
[0114]The preparation method of Cu-MOFs@SA framework material includes the following steps:
[0115] The solid Cu-MOFs particles obtained in Example 1 were ground into powder in a mortar, and 400 mg of Cu-MOFs powder was added to an ethanol solution with a stearic acid concentration of 0.625-1.25 mg / mL. The stearic acid-coated Cu-MOFs ethanol solution was centrifuged at 12,000 rpm for 10 min and dried in an oven at 80 °C for 5 h to obtain the Cu-MOFs@SA framework material.
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