Hierarchical pore MOFs material as well as preparation method and application thereof
A technology of multi-level pores and ligands, applied in separation methods, chemical instruments and methods, and other chemical processes, can solve the problems of complex material synthesis and low adsorption capacity, and achieve simple preparation methods, good technical effects, and wide applications foreground effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0019] Weigh a certain amount of ZrCl 4 (233mg, 1.0mmol), monodentate alkyl carboxylic acid ligand acetic acid (1.8g, 30.0mmol) in a reaction flask, add organic solvent 20mL DMF, ultrasonically mix well, then add bidentate aromatic carboxylic acid ligand 4,4 '-(1,2-ethynediyl)dibenzoic acid (266mg, 1.0mmol) was again ultrasonically mixed. The uniformly mixed reaction solution was transferred to a high-pressure reactor and heated in an oven at 120° C. for 12 h. After the reaction, the sample was cooled to room temperature and centrifuged. The obtained sample was washed 3 times with N,N-dimethylformamide DMF, and washed 3 times with ethanol under reflux to remove residual unreacted organic ligands and high boiling point solvents. Finally, the solid was heated and activated in a vacuum oven at 150° C. for 12 h to obtain a hierarchically porous Zr(IV)-MOF (BUT-30) material. The structural parameters of the material and the saturated adsorption capacity of benzene vapor are show...
Embodiment 2
[0021] Weigh a certain amount of ZrCl 4 (466mg, 2.0mmol), monodentate alkyl carboxylic acid ligand n-butyric acid (2.64g, 30.0mmol) in a reaction flask, add organic solvent 20mL N,N-dimethylacetamide DEF, ultrasonically mix evenly, and then add The bidentate aromatic carboxylic acid ligand 4,4'-(1,2-ethynediyl)dibenzoic acid (266mg, 1.0mmol) was again ultrasonically mixed. The uniformly mixed reaction solution was transferred to a high-pressure reactor and heated in an oven at 150° C. for 24 h. After the reaction, the sample was cooled to room temperature and centrifuged. The obtained sample was washed 3 times with DMF and washed 3 times with dichloromethane under reflux to remove residual unreacted organic ligands and high boiling point solvent. Finally, the solid was heated and activated in a vacuum oven at 180° C. for 18 h to obtain a hierarchically porous Zr(IV)-MOF (BUT-30) material. The structural parameters of the material and the saturated adsorption capacity of ben...
Embodiment 3
[0023] Weigh a certain amount of ZrCl 4 (700mg, 3.0mmol), monodentate alkyl carboxylic acid ligand n-octanoic acid (4.32g, 30.0mmol) in a reaction flask, add organic solvent 20mL DMF, ultrasonically mix evenly, then add bidentate aromatic carboxylic acid ligand 4, 4'-(1,2-ethynediyl)dibenzoic acid (266mg, 1.0mmol) was again ultrasonically mixed. The uniformly mixed reaction solution was transferred to a high-pressure reactor and heated in an oven at 180° C. for 36 h. After the reaction, the sample was cooled to room temperature and centrifuged. The obtained sample was washed 3 times with DMF and refluxed with chloroform for 3 times to remove residual unreacted organic ligands and high boiling point solvent. Finally, the solid was heated and activated in a vacuum oven at 150 °C for 24 h, and the hierarchically porous Zr(IV)-MOF (BUT-30) material was obtained. The structural parameters of the material and the saturated adsorption capacity of benzene vapor are shown in Table 1...
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More