“…To date, abundant inorganic porous sorbents [active carbon, zeolite, metal–organic frameworks (MOFs), etc.] were applied in gas absorption and removing harmful organic vapor or other materials. − However, these sorbents generally undergo the defects of weak interaction, limited micropore structure, or being moisture-sensitive and thus hinder their practical applications . As for organic porous sorbents, microporous organic polymers (MOPs) are deemed promising porous sorbents due to their microporous-rich structure, superior physicochemical stability, high specific surface area, tunable surface chemistry, and plentiful varieties, which have been widely applied in CO 2 and toxic gas adsorption. − To obtain advanced MOP materials, three-dimensional (3D) rigid building blocks were utilized to design and construct 3D MOPs with a higher specific surface area and porosity. , …”