Fatima Amjad, Arsheen Umar, Muhammad Haris Saeed, Muhammad Shahid Nazir, Zulfiqar Ali, Kun-Yi Andrew Lin, Jechan Lee, Sadaf Ul Hassan, Murid Hussain, Young-Kwon Park
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Sorbents, particularly metal–organic frameworks (MOFs) and covalent organic frameworks (COFs), have been used in literature for their gas sorption applications. Over the past decade, modified frameworks have been explored for their potential in gas sorption by combining the advantages of the different materials involved. The properties of these frameworks can be tailored by using various functional groups, metal ions, and polymer matrices. The structures of MOFs and COFs, their synthesis methods, and gas sorption applications are discussed. In addition, the applications of modified MOFs and COFs in gas sorption and separation (CO<sub>2</sub> sorption from flue gas, hydrocarbon separation, separation of hydrocarbons, and iodine capture from nuclear waste), detection (NO<sub>2</sub> sensing), and reduction (SO<sub>2</sub> to reduced sulfur components) are discussed. It also explores the emerging aspects of enhancing gas sensing and capturing abilities of MOFs and COFs, analyzing their performance under different conditions of temperature, pressure, and relative humidity. 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Unlocking the Comparative Potential of Porous Frameworks: A Review on MOFs and COFs for Gas Sorption
Gases are integral to Earth’s climate and ecosystem balance, but human activity has significantly altered atmospheric composition by increasing greenhouse gas emissions. In 2025, carbon dioxide emissions were estimated at around 39–41 billion tons, reflecting a continued increase. Emissions of carbon monoxide, sulfur dioxide, and nitrogen dioxide were expected to remain close to 2.5 billion tons, 100 million tons, and 25 million metric tons, respectively. Hydrogen sulfide emissions decreased to 15 million tons compared with the previous year. These numbers underscore the challenge of addressing human-induced climate changes. Sorbents, particularly metal–organic frameworks (MOFs) and covalent organic frameworks (COFs), have been used in literature for their gas sorption applications. Over the past decade, modified frameworks have been explored for their potential in gas sorption by combining the advantages of the different materials involved. The properties of these frameworks can be tailored by using various functional groups, metal ions, and polymer matrices. The structures of MOFs and COFs, their synthesis methods, and gas sorption applications are discussed. In addition, the applications of modified MOFs and COFs in gas sorption and separation (CO2 sorption from flue gas, hydrocarbon separation, separation of hydrocarbons, and iodine capture from nuclear waste), detection (NO2 sensing), and reduction (SO2 to reduced sulfur components) are discussed. It also explores the emerging aspects of enhancing gas sensing and capturing abilities of MOFs and COFs, analyzing their performance under different conditions of temperature, pressure, and relative humidity. The study addresses the challenges faced by existing frameworks and suggests directions for developing better materials.
期刊介绍:
Topics in Current Chemistry provides in-depth analyses and forward-thinking perspectives on the latest advancements in chemical research. This renowned journal encompasses various domains within chemical science and their intersections with biology, medicine, physics, and materials science.
Each collection within the journal aims to offer a comprehensive understanding, accessible to both academic and industrial readers, of emerging research in an area that captivates a broader scientific community.
In essence, Topics in Current Chemistry illuminates cutting-edge chemical research, fosters interdisciplinary collaboration, and facilitates knowledge-sharing among diverse scientific audiences.