Application of Multidimensional Covalent Organic Frameworks for Enhanced CO2 Adsorption.
Muhammad Tahir1, Aziz Ahmad1, Sami Ullah2
1Department of Chemistry, University of Swat, Charbagh, Pakistan.
Chemical Record (New York, N.Y.)
|April 8, 2026
Summary
Covalent organic frameworks (COFs) show promise for capturing carbon dioxide (CO2) emissions. This review explores how different dimensions of COFs can be used for CO2 adsorption, offering insights into future research directions.
Area of Science:
- Environmental Science
- Materials Science
- Chemistry
Background:
- Rising atmospheric CO2 concentrations from human activities drive climate change and global warming.
- Global CO2 emissions increased by 1.1% in 2023, reaching 37.4 Gt.
- Covalent organic frameworks (COFs) are emerging as highly effective adsorbent materials.
Purpose of the Study:
- To review the application of multidimensional (1D, 2D, and 3D) COFs for CO2 adsorption.
- To investigate the CO2 adsorption capacity of different dimensional COF classes.
- To provide an overview of recent research and future directions in COF-based CO2 capture.
Main Methods:
- Literature review of existing research on COFs for CO2 adsorption.
- Analysis of CO2 adsorption capacities across various COF dimensionalities (1D, 2D, 3D).
- Synthesis of findings on structural properties influencing adsorption.
Main Results:
- COFs exhibit excellent crystallinity, high surface area, and porosity, ideal for CO2 adsorption.
- Multidimensional COFs demonstrate significant potential for capturing atmospheric CO2.
- Specific dimensional classes of COFs show varying adsorption capacities, detailed in the review.
Conclusions:
- COFs are a promising class of materials for CO2 capture technologies.
- Further research into optimizing COF structures for enhanced CO2 adsorption is warranted.
- The review highlights the potential of multidimensional COFs in mitigating CO2 emissions.
More Related Videos
Related Concept Videos
01:28Adsorption of Gases on Solids
223
Adsorption is a process where molecules, known as the adsorbates, accumulate on a surface, which is referred to as the adsorbent or substrate. Occurring at the solid-gas interface, this phenomenon is crucial in various scientific and industrial contexts. The reverse of adsorption is desorption.Two types of adsorptions exist: physical (physisorption) and chemical (chemisorption). Physisorption involves gas molecules held to the solid's surface by relatively weak intermolecular van der Waals...
223
01:25Adsorption Isotherms II
114
Brunauer, Emmett, and Teller (BET) introduced a theory in 1938 that modified Langmuir's assumptions to explain multilayer physical adsorption. This theory is applicable to Type II isotherms and provides a more realistic picture of adsorption processes. The BET theory assumes a uniform solid surface with localized adsorption sites, where adsorption at one site doesn't affect adsorption at neighboring sites. This theory also allows for the possibility of additional molecules being adsorbed on top...
114
01:29Adsorption Isotherms I
178
Adsorption isotherms are mathematical models that describe how molecules in a gas or liquid phase interact with surfaces. Two of the most common isotherm models are the Langmuir and Freundlich isotherms, which relate to Type I monolayer chemisorption. The Langmuir model is based on four key assumptions:• Adsorption cannot exceed monolayer coverage.• All surface sites are equivalent.• Molecules adsorb only at vacant sites.• There are no interactions between adsorbed...
178
02:18Network Covalent Solids
16.6K
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
16.6K
02:58Crystal Field Theory - Octahedral Complexes
31.9K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
31.9K
01:24π Molecular Orbitals of 1,3-Butadiene
12.8K
Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
12.8K