One-pot post-modification of imine-reduced covalent organic framework materials with samarium iodide and methods

Abstract

The application discloses a one-pot post-modification material of a samarium iodide reduced imine covalent organic framework material and a method thereof, and belongs to the technical field of porous material synthesis and functionalization. Samarium iodide is used as a reducing agent to perform one-pot post-modification on PI-3, TTI and Py-Py three imine COFs in an adaptive reaction system, cross-linking between layers is realized by breaking imine bonds, and the modified amine bond COF is obtained in one step. The method is one-pot, does not need step-by-step separation, can selectively break imine bonds and realize cross-linking between layers, the modified COF maintains good crystallinity, and exhibits excellent performance in the field of photocatalytic hydrogen peroxide production; compared with a traditional post-modification method, the problems of crystallinity loss, poor selectivity of a reducing agent, metal residue and the like are solved, the method has strong universality, is suitable for a two-dimensional imine COF system, and provides an efficient new approach for stabilization and functionalization of the COF material.

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