Progress on CO2 capture by porous organic polymers

Carbon dioxide from the combustion of fossil fuels causes many environmental problems, so the capture of CO 2 is especially important. Porous organic polymers (POPs) are regarded as a kind of excellent candidate for CO 2 capture because of their high surface areas, suitable pore size, low cost, and good physicochemical stability. This review aims to summarize the development of CO 2 capture by POPs, including hypercrosslinked polymers, covalent organic frameworks, conjugated microporous polymers, and covalent triazine–based frameworks, in the last two years. The relationship between the characteristic features and CO 2 uptake capability is described. The advantages and disadvantages of each type of POPs and their future challenges are also discussed.