Relevant research continues to deepen, and covalent organic framework membranes (COFs) have huge application potential

Covalent organic framework membrane, referred to as COFs membrane, is a new type of porous separation membrane material composed of light elements (C, B, N, O, Si, etc.) forming strong covalent bonds. COFs membrane has a unique ordered porous structure. With its large surface area, adjustable pore size, low density, and good structural stretchability, COFs membrane has been widely used in gas separation and storage, catalysis, biosensing, drug delivery, optoelectronic materials, and environmental protection. and energy and other fields have shown great application potential.

In recent years, due to its unique structure and functional diversity, COFs membranes have attracted the attention of researchers from all over the world. Domestically, institutions including Tianjin University, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, University of Science and Technology of China, Nanjing University, etc. Have engaged in relevant research. In 2021, the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences used two-dimensional covalent organic framework nanosheets as the building blocks of the separation membrane, inducing the staggered shrinkage effect, successfully reducing the pore size of COFs, and achieving the first time to achieve macromolecular CO2 in CO2/H2 mixed gas. By preferential permeation separation, this research method can prepare ultra-thin nanosheets of CO2, and the separation performance meets the needs of industrial applications.

According to the “2022-2027 Covalent Organic Framework Film (COFs) Industry Market In-depth Research and Investment Prospect Forecast Analysis Report》shows that covalent organic framework membrane is a new type of CO2 selective separation membrane with low energy consumption and environmental friendliness. Under the strategic goals of carbon neutrality and carbon peaking, the development of covalent organic framework membrane industry is of great significance. and practical application value.

COFs membrane is a type of organic framework membrane and is also one of the current research focuses in the field of organic framework membranes. In recent years, as research continues to deepen, more and more COFs materials have been discovered and applied. At this stage, COFs materials are mainly divided into boron-containing COFs materials, triazine-based COFs materials, and imine-based COFs materials. and other types of COFs materials. Depending on whether chiral groups are introduced, COFs materials are divided into two categories: chiral COFs materials and achiral COFs materials.

The COFs membrane preparation process is complex and the synthesis cost is high. Due to technology and cost constraints, COFs membranes have not yet achieved large-scale production. COFs membranes are difficult to dissolve in most solvents. It is difficult to prepare continuous and defect-free separation membranes on a large scale. How to achieve flawless separation membranes in the future? Precision preparation of defective membranes, ultra-thin production, and improving product separation performance will remain the focus of research in the field of COFs membranes.

Industry analysts said that COFs membrane is a new type of porous separation membrane material, which is widely used in gas separation, biosensing, and drug delivery. , optoelectronic materials and other fields have shown good application prospects. However, due to factors such as film production technology and product performance, COFs films have not yet achieved large-scale production and application. But overall, as related problems are solved, the organic framework film market has great potential for development in the future.