MAR2PROTECT Efficient Removal of Perfluorooctanoic acid (PFOA) using Fluorinated Ionic Liquids and Granular Activated Carbon DATASET

Perfluoroalkylated and polyfluoroalkylated substances (PFAS) are persistent and bioaccumulative compounds in the environment and the human body. Their presence in high concentrations brings devastating consequences to health. Nowadays, there is an urgent need to develop efficient and sustainable processes that mitigate the damage caused by PFAS. This leads to improving the life quality of individuals. In the present work, for the first time, the extraction properties of PFOA with fluorinated ionic liquids (FILs) in aqueous media were evaluated. The most promising FIL is [P44414] [C4F9SO3] obtaining adsorption capacities up to 280 mg·g-1 in 72 h. Additionally, adsorption processes were carried out with granular activated carbon (GAC1240W) obtaining adsorption capacities up to 666 mg·g-1 best fitted with the pseudo-second order kinetic model with an equilibrium time of 48 h. Equilibrium  assays showed maximum uptake capacities around 500 mg.g-1, and a multilayer adsorption due to the best fit to Freundlich model. Both FILs and GAC1240W can open new paths in PFAS adsorption processes from aqueous solutions. Taking advantage of the properties of each one of them, new, more efficient, and sustainable processes can be optimized in the future.