%0 Journal Article
%T Highly Effective Removal of Nonsteroidal Anti-inflammatory Pharmaceuticals from Water by Zr(IV)-Based Metal¨COrganic Framework: Adsorption Performance and Mechanisms
%J -
%D 2018
%R https://doi.org/10.1021/acsami.8b08596
%X Nonsteroidal anti-inflammatory pharmaceuticals are emerging organic micropollutants in surface water, groundwater, and wastewater, whose removal is very important yet challenging. As a new class of porous functional materials, metal¨Corganic frameworks (MOFs) have attracted extensive attention for their adsorption applications. Here, we report that Zr(IV)-based MOFs (defective UiO-66, and MOF-808) have extraordinary adsorption ability to remove nonsteroidal anti-inflammatory pharmaceuticals from water. Excellent adsorption performances are obtained for UiO-66 and MOF-808, particularly for UiO-66, of which the adsorption capacities are the highest in a wide series of adsorptive materials previously reported. It is elucidated that the incomplete-coordinated cationic Zr in the cluster has high affinity for the anionic pharmaceutical (chemical adsorption) and that the adsorption interaction between the benzene ring of the pharmaceutical and MOF¡¯s ligand is involved to enhance or as an alternative to the adsorption interactions (¦Ð¨C¦Ð interaction). In particular, adsorption of ibuprofen, ketoprofen, naproxen, indomethacin, and furosemide by UiO-66 and MOF-808 and the synergetic effect of chemical adsorption and ¦Ð¨C¦Ð interaction are outstanding, leading to extremely higher binding energies (Ebind) and sorption abilities
%U https://pubs.acs.org/doi/10.1021/acsami.8b08596