Capturing CO₂ under Dry and Humid Conditions: When Does the Parent MOF Outperform the MTV MOF?

ABSTRACT: A key challenge in capturing CO₂ from postcombustion gases is humidity due to competitive adsorption between CO₂ and H₂O. Multivariate (MTV) metal-organic frameworks (MOFs) have been considered a promising option to address this problem, e.g., combining CO₂-affinitive and hydrophobic groups. Here, we synthesized a series of amine and methyl cofunctionalized MTV MIL-53(Al)-xNH₂(1 - x)CH₃ and their parent materials. All the mixed linker MIL-53(Al)-xNH₂(1 - x)CH₃ showed amino linker enrichment compared to the synthesis ratio, yet the linkers were distributed relatively homogeneously from the bulk to the surface. Material hydrophobicity or hydrophilicity varied with methyl or ami

SUBMITTER: Huang C 

PROVIDER: S-EPMC12458701 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature