A kind of magnetic sulfonic acid functionalized cofs material and its preparation method and application
A sulfonic acid-based, functionalized technology, applied in chemical instruments and methods, separation methods, analytical materials, etc., can solve the problem of poor selective adsorption performance of aromatic amine compounds, and achieve strong electrostatic adsorption and efficient adsorption effect
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[0039]Example 1
[0040]The magnetic sulfonic acid functionalized COFs material of this embodiment, such asfigure 1 As shown, the following steps are used for preparation:
[0041]Dissolve 2,4,6-triformyl pyrogallol (21.0mg) and 2,5-diaminobenzenesulfonic acid (28.2mg) in a mixed solvent of trimethylbenzene / dioxane (from 0.2mL Trimethylbenzene and 0.8mL of dioxane are mixed), add 0.1mL of 3mol / L acetic acid solution, mix at room temperature to form a uniform solution; then under nitrogen protection, add 0.02g magnetic Nanoparticles were reacted at 100°C for 72 hours. After the reaction, the black solid product was separated, washed with anhydrous dimethylformamide, anhydrous tetrahydrofuran and anhydrous acetone, and then washed with anhydrous methanol 2-3 times to complete the activation. After vacuum drying at 150°C for 12 hours, the magnetic sulfonic acid functionalized COFs material was obtained.
[0042]Applying the magnetic sulfonic acid functionalized COFs material of this embodiment ...
Example Embodiment
[0061]Example 2
[0062]The magnetic sulfonic acid group functionalized COFs material of this embodiment is prepared using the following steps:
[0063]Dissolve 2,4,6-triformyl pyrogallol (11.0mg) and 2,5-diaminobenzenesulfonic acid (18.2mg) in a mixed solvent of trimethylbenzene / dioxane (from 0.2mL Trimethylbenzene and 0.6mL of dioxane are mixed), add 0.1mL of 3mol / L acetic acid solution, mix at room temperature to form a homogeneous solution; then under nitrogen protection, add 0.02g magnetic Nanoparticles were reacted at 90°C for 80 hours. After the reaction, the black solid product was separated, washed with anhydrous dimethylformamide, anhydrous tetrahydrofuran, and anhydrous acetone in sequence, and then washed with anhydrous methanol for 2-3 times to complete the activation. After vacuum drying at 150°C for 12 hours, the magnetic sulfonic acid functionalized COFs material was obtained.
Example Embodiment
[0064]Example 3
[0065]The magnetic sulfonic acid group functionalized COFs material of this embodiment is prepared using the following steps:
[0066]Dissolve 2,4,6-triformyl pyrogallol (28.0mg) and 2,5-diaminobenzenesulfonic acid (40.0mg) in a mixed solvent of trimethylbenzene / dioxane (from 0.2mL Trimethylbenzene and 1.2mL of dioxane are mixed), add 0.1mL of 3mol / L acetic acid solution, mix at room temperature to form a uniform solution; then under nitrogen protection, add 0.04g magnetic Nanoparticles were reacted at 120°C for 60 hours. After the reaction, the black solid product was separated, washed with anhydrous dimethylformamide, anhydrous tetrahydrofuran, and anhydrous acetone, and then washed with anhydrous methanol 2-3 times to complete the activation. After vacuum drying at 150°C for 12 hours, the magnetic sulfonic acid functionalized COFs material was obtained.
[0067]In other embodiments of the magnetic sulfonic acid-based functionalized COFs material of the present invention,...
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