Research progress in metal–organic frameworks (MOFs) in CO2 capture from post-combustion coal-fired flue gas: characteristics, preparation, modification and applications

Abstract

In response to the urgency of reducing CO₂ emissions, nearly 200 countries have joined the “Paris Agreement”. It sets long-term low-carbon development goals, which aim to achieve carbon neutrality in the future. The combustion of fossil fuels, especially coal-fired power plants, is a major source of anthropogenic emissions of CO₂ in the atmosphere. Capture and storage of CO₂ (CCS) in post-combustion flue gas is considered to be a promising technology for achieving CO₂ emission reduction. Metal–organic frameworks (MOFs) are a potential emerging high-performance CO₂ capture material. This review was conducted based on most studies on CO₂ capture of MOFs from post-combustion coal-fired flue gas mainly published in the past decade. The main content includes characteristics, preparation methods, modification methods, and application of MOFs for CO₂ capture, and machine learning used in the development and screening of MOFs. The characteristics of MOFs with high CO₂ capture performance and the best candidate MOFs under the conditions of the coal-fired flue gas are summarized. In each part, a general summary and prospects of the related studies are given. The goal of this review is to provide technical and theoretical guidance for the development and industrial application of high-performance MOF materials for CO₂ capture in the post-combustion coal-fired flue gas.