Novel advances in synthesis and catalytic applications of metal-organic frameworks - based nanocatalysts for CO2 capture and transformation

• Published in: Journal of environmental chemical engineering 2024-06, Vol.12 (3), p.112835, Article 112835
• Main Authors: Obi, Christopher Chiedozie, Nwabanne, Joseph Tagbo, Igbokwe, Philomena Kanuria, Idumah, Christopher Igwe, Okpechi, Victor Ugochukwu, Oyeoka, Henry Chukwuka
• Format: Article
• Language: English
• Subjects: Adsorption; Adsorption capacity; Capture; CO2; Conversion; MOFs; Transformation
• ISSN: 2213-3437; 2213-3437
• DOI: 10.1016/j.jece.2024.112835

Metal-organic frameworks (MOFs) are one of the most promising functional materials for CO2 adsorption and transformation owing to their abundant active sites, easily functionalized surface, and highly adjustable pore structure, among others. This review discussed the recent research outputs in the synthesis and catalytic applications of MOFs – based nanocatalysts for CO2 capture and conversion. The focus was on papers published in the last five years. The different synthetic methods of MOFs and MOF-based nanocomposites were elaborated. More so, the performance of MOFs as adsorbents in CO2 capture and the proven performance enhancement strategies which include functionalization and compounding with other materials as nanocomposites were discussed in detail. Special emphasis was given to the different transformation routes of CO2 viz. hydrogenation, photocatalysis, electrocatalysis, photoelectrocatalysis, and chemical fixation. As against what is obtainable in most similar reviews, the review provides insight into the application of MOF-based materials in integrated CO2 capture and transformation. The work further provides an elaborate discussion of the current challenges and future perspectives. The reported works indicated that these MOF-based materials possessed the required competence for the adsorption and transformation of CO2 into valuable products, making them excellent choices for practical applications. [Display omitted] •The uncontrolled release of CO2 into the atmosphere is a threat to human survival.•CO2 capture and transformation are one of the significant climate change mitigation options.•MOFs are one of the most promising functional materials for CO2 adsorption and transformation.•MOF synthesis methods are solvothermal, microwave-assisted, mechanochemical, electrochemical, and sonochemical.•CO2 transformation techniques are hydrogenation, photocatalysis, electrocatalysis, photoelectrocatalysis, and chemical fixation.