Investigation of the MOF adsorbents and the gas adsorptive separation mechanisms

Due to their high pore volume and high porosity, Metal-Organic Frameworks (MOFs), containing one-, two-, and three-dimensional structures, have been developing at an accelerating rate, especially for the adsorption studies. Herein, the adsorption separation mechanisms are being investigated. An adsorption-based separation can be governed by the size exclusion, through the difference in affinity, and separation by the difference in the adsorption rate. As the high potential of MOFs in the field of separation is visible, one must gain an understanding of the underlying process, under which, the separation occurs. Moreover, recent advancements of MOFs' chemistry were studied, in addition to the structural characteristics of MOFs. The synthesis technique is also an integral part of exploiting MOFs for separation purposes. Thus, a brief review of the novel approaches used for MOFs synthesis has been carried out. Since the aim of this review is divulging the adsorption-based separation, two of the most significant applications of MOFs namely carbon-dioxide capture and methane storage were explored.

Automated summary

Metal-Organic Frameworks (MOFs) have been rapidly developing in the field of adsorption studies due to their high pore volume and high porosity, and the adsorption-based separation mechanisms are being investigated. The size exclusion, difference in affinity, and adsorption rate play key roles in governing adsorption-based separation, and recent advancements in MOFs' chemistry and structural characteristics have been studied. Furthermore, the applications of MOFs in carbon dioxide capture and methane storage have been explored to reveal the high potential of MOFs in separation technologies.