Method for preparing hollow HKUST-1/ZIF-67 composite nanoparticles through etching
The technology of HKUST-1 and ZIF-67 is applied in the field of hollow HKUST-1/ZIF-67 composite nanoparticles and their preparation, and achieves the effects of simple and easy preparation method, low cost, and simple and easy operation of preparation method.
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Embodiment 1
[0022] First, weigh 2 mmol of trimesic acid and 4 mmol of sodium hydroxide and dissolve them in 2 mL of deionized water, add 9.5 mL of deionized water and 8 mL of N, N-dimethylformamide into a beaker, and dissolve the trimesic acid The solution with sodium hydroxide was added to the beaker, and then 0.025 mmol of copper nitrate solution was added, and after magnetic stirring for 10 s, the resulting reaction mixture was centrifuged and dispersed into 5 mL of methanol as solution A, and 0.4 mmol of dimethylimidazole was dissolved to 5 In mL methanol as solution B, add solution B to solution A and stir magnetically for 30 min, then add 50 µL of 1 mol / L methanolic cobalt nitrate solution, stir magnetically for 3 h, centrifuge the resulting reaction mixture, and wash with deionized water and ethanol wash, then at 60 o C. Dried in a blast dryer to prepare hollow HKUST-1 / ZIF-67 composite nanoparticles.
Embodiment 2
[0024] First, weigh 4 mmol of trimesic acid and 8 mmol of sodium hydroxide and dissolve them in 4 mL of deionized water, then add 19 mL of deionized water and 16 mL of N, N-dimethylformamide into a beaker to dissolve the trimesic acid The solution with sodium hydroxide was added to the beaker, and then 0.05 mmol of copper nitrate solution was added. After magnetic stirring for 20 s, the resulting reaction mixture was centrifuged, dispersed into 10 mL of methanol as A solution, and 0.8 mmol of dimethylimidazole was dissolved to 10 As solution B in mL methanol, add solution B to solution A and stir magnetically for 40 min, then add 200 µL of 1 mol / L methanolic cobalt nitrate solution, stir magnetically for 2 h, centrifuge the resulting reaction mixture, and wash with deionized water and ethanol wash, then at 60 o C. Dried in a blast dryer to prepare hollow HKUST-1 / ZIF-67 composite nanoparticles.
Embodiment 3
[0026] First, weigh 2 mmol of trimesic acid and 4 mmol of sodium hydroxide and dissolve them in 2 mL of deionized water, add 9.5 mL of deionized water and 8 mL of N, N-dimethylformamide into a beaker, and dissolve the trimesic acid The solution with sodium hydroxide was added to the beaker, and then 0.025 mmol of copper nitrate solution was added, and after magnetic stirring for 10 s, the resulting reaction mixture was centrifuged and dispersed into 8 mL of methanol as solution A, and 0.4 mmol of dimethylimidazole was dissolved to 8 In mL methanol as solution B, add solution B to solution A and stir magnetically for 30 min, then add 75 µL of 1 mol / L methanolic cobalt nitrate solution, stir magnetically for 2 h, centrifuge the resulting reaction mixture, and wash with deionized water and ethanol wash, then at 60 o C. Dried in a blast dryer to prepare hollow HKUST-1 / ZIF-67 composite nanoparticles.
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