{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Gebremariam SK"],"funding":["Khalifa University of Science, Technology and Research"],"pagination":["50785-50799"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11440468"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["16(38)"],"pubmed_abstract":["Metal-organic frameworks (MOFs) have emerged as promising candidates for CO<sub>2</sub> adsorption due to their ultrahigh-specific surface area and highly tunable pore-surface properties. However, their large-scale application is hindered by processing issues associated with their microcrystalline powder nature, such as dustiness, pressure drop, and poor mass transfer within packed beds. To address these challenges, shaping/structuring micron-sized polycrystalline MOF powders into millimeter-sized structured forms while preserving porosity and functionality represents an effective yet challenging approach. In this study, a facile and versatile strategy was employed to integrate moisture-stable and scalable microcrystalline MOFs (UiO-66 and ZIF-8) into a poly(acrylonitrile) matrix to fabricate readily processable, millimeter-sized hierarchically porous structured adsorbents with ultrahigh MOF loadings (∼90 wt %) for direct industrial carbon capture applications. These structured composite beads retained the physicochemical properties and separation performance of the pristine MOF crystal particles. Structured UiO-66 and ZIF-8 exhibited high specific surface areas of 1130 m<sup>2</sup> g<sup>-1</sup> and 1431 m<sup>2</sup> g<sup>-1</sup>, respectively. The structured UiO-66 achieved a CO<sub>2</sub> adsorption capacity of 2.0 mmol g<sup>-1</sup> at 1 bar and a dynamic CO<sub>2</sub>/N<sub>2</sub> selectivity of 17 for a CO<sub>2</sub>/N<sub>2</sub> gas mixture with a 15/85 volume ratio at 25 °C. Furthermore, the structured adsorbents exhibited excellent cyclability in static and dynamic CO<sub>2</sub> adsorption studies, making them promising candidates for practical application."],"journal":["ACS applied materials & interfaces"],"pubmed_title":["Hierarchically Porous Structured Adsorbents with Ultrahigh Metal-Organic Framework Loading for CO&lt;sub&gt;2&lt;/sub&gt; Capture."],"pmcid":["PMC11440468"],"funding_grant_id":["RC2-2019-007","CIRA2020-093","RC2-2018-024"],"pubmed_authors":["Ehrling S","Gebremariam SK","Varghese AM","Dumee LF","Al Wahedi Y","AlHajaj A","Karanikolos GN"],"additional_accession":[]},"is_claimable":false,"name":"Hierarchically Porous Structured Adsorbents with Ultrahigh Metal-Organic Framework Loading for CO&lt;sub&gt;2&lt;/sub&gt; Capture.","description":"Metal-organic frameworks (MOFs) have emerged as promising candidates for CO<sub>2</sub> adsorption due to their ultrahigh-specific surface area and highly tunable pore-surface properties. However, their large-scale application is hindered by processing issues associated with their microcrystalline powder nature, such as dustiness, pressure drop, and poor mass transfer within packed beds. To address these challenges, shaping/structuring micron-sized polycrystalline MOF powders into millimeter-sized structured forms while preserving porosity and functionality represents an effective yet challenging approach. In this study, a facile and versatile strategy was employed to integrate moisture-stable and scalable microcrystalline MOFs (UiO-66 and ZIF-8) into a poly(acrylonitrile) matrix to fabricate readily processable, millimeter-sized hierarchically porous structured adsorbents with ultrahigh MOF loadings (∼90 wt %) for direct industrial carbon capture applications. These structured composite beads retained the physicochemical properties and separation performance of the pristine MOF crystal particles. Structured UiO-66 and ZIF-8 exhibited high specific surface areas of 1130 m<sup>2</sup> g<sup>-1</sup> and 1431 m<sup>2</sup> g<sup>-1</sup>, respectively. The structured UiO-66 achieved a CO<sub>2</sub> adsorption capacity of 2.0 mmol g<sup>-1</sup> at 1 bar and a dynamic CO<sub>2</sub>/N<sub>2</sub> selectivity of 17 for a CO<sub>2</sub>/N<sub>2</sub> gas mixture with a 15/85 volume ratio at 25 °C. Furthermore, the structured adsorbents exhibited excellent cyclability in static and dynamic CO<sub>2</sub> adsorption studies, making them promising candidates for practical application.","dates":{"release":"2024-01-01T00:00:00Z","publication":"2024 Sep","modification":"2025-04-18T13:05:19.21Z","creation":"2025-04-06T22:37:46.877Z"},"accession":"S-EPMC11440468","cross_references":{"pubmed":["39282713"],"doi":["10.1021/acsami.4c10730"]}}