Preparation of hydrazone porous covalent organic framework material containing amino functional group and gaseous iodine adsorption application
A covalent organic framework, amino-functional technology, applied in separation methods, other chemical processes, dispersed particle separation, etc., can solve the problems of long synthesis cycle, complex process, difficult to maintain crystallinity, etc., to achieve convenient reaction cycle, specific surface area and other problems. High and stable effect
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Embodiment 1
[0038] Example 1 Preparation of Hydrazone Porous Covalent Organic Framework Materials Containing Amino Functional Groups
[0039] Such as figure 1 As shown in the synthetic route diagram of the present embodiment, the preparation method of the hydrazone-type porous covalent organic framework material containing amino functional groups specifically includes the following steps:
[0040] (1) 2,4,6-(4-formylphenyl)-1,3,5-triazine (Tz, 7.87mg, 0.02mmol), amino functionalized dihydrazide monomer (NH 2 -Th, 6.3mg, 0.03mmol) and 1.0mL of mesitylene / dioxane mixed solvent (the volume ratio of mesitylene and dioxane is 1:1) were placed in a 10mL pressure-resistant reaction flask, Mix well and add 0.1mL of 6M acetic acid solution.
[0041] (2) Bubble the pressure-resistant reaction vial with argon gas for 10 minutes, then quickly seal it, and then place the pressure-resistant reaction vial in an oven at 110° C. for three days.
[0042] (3) Cool to room temperature after the reaction, co...
experiment example 1
[0043] Experimental example 1 Determination of properties of amino functionalized hydrazone covalent organic framework materials
[0044] The hydrazone porous covalent organic framework material containing amino functional groups prepared in Example 1 (NH 2 -Th-TzCOF) was used as the test material, and its performance was measured.
[0045] (1) X-ray powder diffraction measurement
[0046] NH was measured at room temperature using a Japanese Science Ultima IV X-ray powder diffractometer 2 -Powder X-ray Diffraction Spectrum of Th-Tz COF, measured by Cu Kα radiation, 2θ in the range of 2°-40°, current of 40mA, voltage of 30kV.
[0047] Measurement results such as figure 2 As shown, 2.3°, 4.8°, 6.2° and 8.1° in the figure are NH 2 -Characteristic diffraction peaks of Th-Tz COF, indicating that it has good crystallinity.
[0048] (2) Fourier transform infrared spectroscopy (FT-IR) measurement
[0049] Using the Spectrum Two FT-IR spectrometer from PerkinElmer, Germany 2 - ...
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