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
Active Publication Date: 2021-01-22
ZHENGZHOU TOBACCO RES INST OF CNTC
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Abstract
The invention relates to a magnetic sulfonic functional COFs material, a preparation method and application thereof. The COFs material includes a covalent organic framework formed by Schiff base condensation reaction of 2, 4, 6-triformylphloroglucinol and 2, 5-diaminobenzenesulfonic acid, and magnetic nanoparticles for modification on the covalent organic framework, wherein the magnetic nanoparticles are amino functionalized Fe3O4/SiO2 core-shell nanoparticles. The aperture confinement effect of the COFs material can exclude adsorption of protein and other macromolecules in a urine matrix. Thesulfonic group on the COFs material has strong electrostatic adsorption effect with the amino of an aromatic amine compound, and can achieve efficient adsorption of the aromatic amine compound and prevent adsorption of an electronegative compound. The benzene ring structure on the COFs material and the benzene ring of the aromatic amine compound have strong Pi-Pi interaction. The COFs material realizes selective efficient enrichment of trace aromatic amine compound in a complex matrix.
Application Domain
Other chemical processesComponent separation +2
Technology Topic
Protein proteinSchiff base +17
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