Application of amine-modified porous materials for CO2 adsorption in mine confined spaces

The confined space of a mine provides temporary protection measures and life support to miners awaiting rescue after a mine accident. Among the protection measures, the removal of CO2 from confined spaces is the key technology for air purification technologies for air purification, and amine-based modified porous material adsorbent (zeolite, activated carbon, fiber, etc.) have the advantages of low toxicity, high adsorption stability, simple preparation, etc., suitable as an adsorbent for CO2 purification in confined spaces. By grafting or impregnating amines on the surface of the porous material, adjusting the structure of the porous material and changing the adsorption performance is an effective method to improve the adsorption performance of the porous adsorbent. The preparation methods, surface modifiers, porous materials, adsorption mechanism and CO2 adsorption efficiency of amine-based modified porous materials are reviewed, and the applications prospects of amine-porous materials in special environments such as coal mines are discussed.

Automated summary

Amine-based modified porous materials are crucial for CO2 purification in confined spaces like mines, with their preparation methods and application prospects being widely discussed.