Carbon dioxide (CO₂), a major greenhouse gas, capture has recently become a crucial technological solution to reduce atmospheric emissions from fossil fuel burning. Thereafter, many efforts have been put forwarded to reduce the burden on climate change by capturing and separating CO₂, especially from larger power plants and from the air through the utilization of different technologies (e.g., membrane, absorption, microbial, cryogenic, chemical looping, and so on). Those technologies have often suffered from high operating costs and huge energy consumption. On the right side, physical process, such as adsorption, is a cost-effective process, which has been widely used to adsorb different contaminants, including CO₂. Henceforth, this review covered the overall efficacies of CO₂ adsorption from air at 196 K to 343 K and different pressures by the carbon-based materials (CBMs). Subsequently, we also addressed the associated challenges and future opportunities for CBMs. According to this review, the efficacies of various CBMs for CO₂ adsorption have followed the order of carbon nanomaterials (i.e., graphene, graphene oxides, carbon nanotubes, and their composites) < mesoporous -microporous or hierarchical porous carbons < biochar and activated biochar < activated carbons.

Carbon-based gel materials have become a flexible class of porous materials with great promise for sustainable material innovations, energy storage, and environmental remediation.

This study investigated the production of biomass-derived activated carbons (ACs) Borassus flabellifer flower (BF), sugarcane bagasse (SB), and coconut shells (CS), which were subsequently utilized for carbon dioxide (CO ₂ ) capture.

The development of sustainable and biodegradable substitutes has increased due to growing environmental concerns surrounding petroleum-based polymers.