Comparative analysis of the carbon nanotubes and emerging MXene for CO2 capture and storage

The emission of greenhouse gases (GHGs) into the environment is a significant global issue in the current era. Efforts are being made to overcome these challenges, specially focusing on the emissions of carbon dioxide (CO2) into the atmosphere by developing cost-effective and environmentally friendly techniques and materials. MXene and carbon nanotubes (CNTs) are the two crucial two-dimensional (2D) and one-dimensional (1D) materials, respectively that store CO2; both have outstanding characteristics and CO2 storage potential. The porous nature, high stability, and the existence of a significant active sites on the surface of the CNTs as compared to the MXene make them a better choice for the adsorption of CO2. This study provides a comparative analysis of the properties, adsorption mechanism, methods of developing CNTs and MXene, and their CO2 adsorption capacities. Finally, the challenges and prospects CNTs and MXene have been highlighted.