A new MIL-101-type chromium-based metal-organic framework with densely packed sulfonic groups: an ultra-high uptake of toxic Pb²⁺ and Cu²⁺ ions from an aqueous medium.

ABSTRACT: Metal-organic frameworks have been demonstrated to be effective adsorbents of heavy metal ions in recent decades. Nevertheless, their practical applications remain limited because of their slow uptake rates and a lack of functionalization techniques. To overcome these drawbacks, a new sulfonic-functionalized chromium-based metal-organic framework with a MIL-101-type structure was successfully fabricated, termed MIL-101-SO₃H(N), via a solvothermal procedure, and it demonstrated a unique uptake ability for highly toxic Pb²⁺ and Cu²⁺ cations from solution. Accordingly, MIL-101-SO₃H(N) demonstrated the highest adsorption capacity of 1449.7 mg g^-1 and 1328.4 mg g^-1 for Pb²⁺ and Cu²⁺ ions, respectively

SUBMITTER: Nguyen MV 

PROVIDER: S-EPMC12260918 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature