Biological Metal–Organic Frameworks (Bio-MOFs) for CO₂Capture

Abstract

Industrialization and economic development have accelerated energy consumption and the release of CO2 to the atmosphere. The continual increase in CO2 levels is contributing to climate change; therefore, mitigating CO2 emissions warrants intensive research. Metal–organic frameworks (MOFs) have demonstrated potential as adsorbents for CO2 capture, but their cost makes them impractical for industrial applications. Inexpensive biomolecules, including amino acids, proteins, peptides, and porphyrins, can be used as ligands to manufacture biological MOFs (bio-MOFs) with diverse structures that can be tailored for CO2 adsorption. In this study, we discuss the application of bio-MOFs for CO2 capture. We review the principles of CO2 capture, bio-MOF CO2 adsorption chemistry, and industrial system requirements. We also review experimental and theoretical studies on bio-MOF structural parameters that affect CO2 adsorption efficiency, heat of adsorption, and selectivity. Next, we discuss the technical and economic challenges of applying bio-MOFs for CO2 capture and provide recommendations for their industrial-scale use.

Biomass/Biochar carbon materials for CO2 capture and sequestration by cyclic adsorption processes: A review and prospects for future directions

“…To this end, different classes of sorbents including zeolites [29], activated carbons [30], metal organic frameworks (MOFs) [31,32], metal oxides materials [33], silica [34], lithium zirconate [35], etc. [36], have been proposed for carbon capture and sequestration by adsorption, being crucial for large scale applications, to consider sustainability, stability, loading capacity, regeneration condition, density and hydrophobic/hydrophilic character, simultaneously [17].…”

Preliminary Study of Bio-Metal Organic Frameworks (Bio-MOFs) Based Chromium-Citric Acid for CO_2 Adsorption Application

“…The surface area is not the only things that affects gas adsorption capacity. From the results of our previous study, the surface area of the Bio-MOF did not have a significant effect on the CO 2 adsorption capacity 8) . On the contradictory to the pore The XRD investigation was performed to obtain the phase identification of crystalline material and showed the information on unit cell dimensions 22) .…”

“…MOF was first popularized in the 1990s and it has attracted the attention of scientists in the last two decades 7) . Aside from common porous materials such as zeolites, silica, or activated carbon, MOF has special physical properties such as high thermal stability and porosity, easily controlled structure, and fast kinetic which make this type of adsorben to be the most promising material that has been developed in various engineering branch applications such as natural gas, syngas, biogas in CO2 removal [8][9][10] .…”

Synthesis, Characterization and Application of Amine-Functionalized Hierarchically Micro-Mesoporous Silicon Composites for CO2 Capture in Flue Gas

“…Adsorbents are the foundation for the adsorption process. In recent years, many porous solid adsorbents have been investigated in order to capture CO 2 from flue gas, including carbon materials [ 14 , 15 , 16 ], zeolites [ 17 ], mesoporous silicon [ 18 ], pillared lamellar clays [ 19 ], and the metal-organic frameworks (MOFs) [ 20 , 21 ].…”