Skip to Main content Skip to Navigation
Journal articles

Metal-organic frameworks cavity size effect on the extraction of organic pollutants

Abstract : Zirconium Metal−Organic Framework materials (MOF, UiO-66 and UiO-67) have been used for the removal from aqueous solutions of persistent fluorinated pollutants, perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). The two isostructural materials differ in cavity size, defined by the ligand, bdc (benzene-dicarboxylic acid) or bpdc (biphenyl-dicarboxylic acid) for UiO-66 and UiO-67 respectively. Both materials enable efficient sorption of both PFOA and PFOS. Sorption kinetics and isotherms have been experimentally determined, and thermodynamic parameters ΔH°, ΔS° and ΔG° have been determined. UiO-67 shows higher sorption capacities (up to 743 mg.g-1 for PFOA) compared to these of UiO-66 (388 and 160 mg.g-1 for the sorption of PFOA and PFOS respectively) with a change in the sorption mechanism.
Document type :
Journal articles
Complete list of metadata

Cited literature [16 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-02443598
Contributor : Michael Carboni <>
Submitted on : Thursday, November 12, 2020 - 12:39:14 PM
Last modification on : Saturday, March 6, 2021 - 3:11:58 AM
Long-term archiving on: : Saturday, February 13, 2021 - 7:24:57 PM

File

UiO-66-67-PFOX-MOF22102018-DB....
Files produced by the author(s)

Identifiers

Citation

Karima Sini, Damien Bourgeois, Madjid Idouhar, Michaël Carboni, Daniel Meyer. Metal-organic frameworks cavity size effect on the extraction of organic pollutants. Materials Letters, Elsevier, 2019, 250, pp.92-95. ⟨10.1016/j.matlet.2019.04.113⟩. ⟨cea-02443598⟩

Share

Metrics

Record views

101

Files downloads

56