Trace benzene capture by decoration of structural defects in metal-organic framework materials.

ABSTRACT: Capture of trace benzene is an important and challenging task. Metal-organic framework materials are promising sorbents for a variety of gases, but their limited capacity towards benzene at low concentration remains unresolved. Here we report the adsorption of trace benzene by decorating a structural defect in MIL-125-defect with single-atom metal centres to afford MIL-125-X (X = Mn, Fe, Co, Ni, Cu, Zn; MIL-125, Ti₈O₈(OH)₄(BDC)₆ where H₂BDC is 1,4-benzenedicarboxylic acid). At 298 K, MIL-125-Zn exhibits a benzene uptake of 7.63 mmol g^-1 at 1.2 mbar and 5.33 mmol g^-1 at 0.12 mbar, and breakthrough experiments confirm the removal of trace benzene (from 5 to <0.5 ppm) from air (up to 111,000 min g^-1 of met

SUBMITTER: Han Y 

PROVIDER: S-EPMC11525167 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature