Influence of Charge Compensating Anions on the Adsorption of Perfluorobutanesulfonate in MOF-808.

ABSTRACT: Per- and poly fluoroalkyl substances (aka PFAS) are a class of anthropogenic compounds that have come under scrutiny given their ability to bioaccumulate in the environment and negatively impact health outcomes. Metal-organic frameworks (MOFs) are an emerging category of sorbents that are attractive for PFAS remediation given their readily modifiable nature. Here we show that the charge compensating anions (cca's) formate (FA), acetate (AA), trifluoroacetate (TFA), and chloride have a significant impact on the adsorption of perfluorobutanesulfonate (PFBS) within MOF-808. Kinetic measurements indicate that MOF-808 rapidly adsorbs PFBS with equilibrium reached within 50 min or less. The kinetic data is well-fit to the pseudo first-order Langmuir model and the resultant pseudo first-order rat

SUBMITTER: Mikel J 

PROVIDER: S-EPMC12489849 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature