A porphyrin-based covalent organic framework material based on metal ion doping and its preparation method and application
A covalent organic framework, metal ion technology, applied in separation methods, chemical instruments and methods, educts, etc., can solve the problems of poor recyclability of covalent organic framework materials, and achieve good chemical stability, permanent porosity, good effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0048] The preparation method of the porphyrin-based covalent organic framework material based on metal ion doping of the present invention comprises the following steps:
[0049] Step 1. Preparation of covalent organic framework materials
[0050] Under the protection of an inert atmosphere, 5,10,15,20-tetrakis(4-aminophenyl)porphyrin, 2.5-bis(4-aminophenyl-1 base)1,4-xylene, organic solvent and acetic acid Mix the aqueous solution evenly, react at 100-140°C for 25-75h, cool to room temperature, wash and dry in vacuum to obtain the covalent organic framework material;
[0051] Step 2. Preparation of porphyrin-based covalent organic framework materials based on metal ion doping
[0052] Under the protection of an inert atmosphere, mix the covalent organic framework material, metal salt and organic solvent obtained in step 1 uniformly, react at 100-140°C for 8-72h, cool to room temperature, filter, wash, and vacuum-dry to obtain the metal ion-doped Heterogeneous porphyrin-bas...
Embodiment 1
[0075] Preparation of porphyrin-based covalent organic framework materials based on metal ion doping:
[0076] Step 1. Add 2-bis(4,4-formylphenyl)acetylene (20.6mg, 0.088mmol) and 5,10,15,20-tetrakis(4-aminophenyl)porphyrin (29.6mg , 0.044mmol), grind until mixed evenly (20min), put the obtained mixture into the glass tube, fill and discharge nitrogen gas 3 times, remove the air in the tube, then add anhydrous n-butanol 0.25mL, 0.75mL of o-dichlorobenzene and 0.2mL (6mol / L) of acetic acid aqueous solution, pump out the gas in the tube to make it in a vacuum state, and fuse it to a length of 15cm (the purpose is to prevent the glass tube from bursting during heating (if there is residual gas in the tube) , easy to burst at high temperature), 15cm long, easy to control the pressure and volume in the tube), cool to room temperature, put it in an oven at 120°C for 72h, and cool the obtained solid to room temperature, soak it in tetrahydrofuran for 12h, repeat three times, Then im...
Embodiment 2
[0080] Preparation of porphyrin-based covalent organic framework materials based on metal ion doping:
[0081] Step 1, with embodiment 1 step 1;
[0082]Step 2. Weigh 0.06g of the covalent organic framework material prepared in step 1 and 0.1g of cobalt nitrate hexahydrate, dissolve them in 30mL of methanol, and under the protection of nitrogen, stir at 80°C (speed 800r / min) for 12h, and cool to At room temperature, collect the precipitate by filtration, soak in deionized water for 12 hours, repeat three times, then soak in tetrahydrofuran for 12 hours, repeat three times, then soak in methanol for 12 hours, repeat three times, finally soak in acetone for 12 hours, repeat three times, at 80 ° C It was dried under vacuum for 6 hours to obtain a deep purple powder, that is, a covalent organic framework material doped with cobalt ions.
[0083] According to inductively coupled plasma (ICP) analysis, in the covalent organic framework material doped with cobalt ions, the doping am...
PUM
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More