ZIFs-based adsorbents offer several advantages. ZIFs-based membranes exhibit good thermal stability for gas separation . ZIFs materials such as ZIF-78, ZIF-79, ZIF-80, ZIF-81, and ZIF-82, showed high selectivity for separation of CO2 and CH4 with selectivity of 10.6:1 to 9.1:1 for ZIF-78 to ZIF-82, respectively . They retain high CO2 gas compared to other materials such as zeolite gmelinite (GME) series and BPL-activated carbon . ZIFs-based materials exhibit high adsorption efficiency toward CO2 over other gases. They can be used as powder and membranes. The adsorption performance can be enhanced via several methods ensuring high capacity and better selectivity. The synthesis of ZIF-based membranes on tubular support is promising for research and pilot-scale production before their actual deployment in industrial and commercialization applications. Most of the current methods for fabricating ZIFs-based membranes lack high reproducibility. This is a significant challenge that should be circumvented to enable consistent performance. Solving the challenges such as reproducibility and lab-scale production will enable commercialization and application on an industrial scale.