1 research outputs found
Targeted Adsorptive Removal of Nonsteroidal Anti-inflammatory Drugs for Water Purification Using Nanoporous Zr-Based Metal–Organic Framework Microcubes
Chemically synthesized drugs used in the industry are
associated
with potential environmental risks. Herein, we report the targeted
adsorption of nonsteroidal anti-inflammatory drugs, with and without
a carboxylic acid group, using a water-stable Zr-based porphyrinic
metal–organic framework (MOF), PCN–224. Nanoporous PCN–224
contains interaction sites for drugs and thus enables the removal
of organic pollutants. The removal efficiency of NPX and IBP was 96
and 94%, but PCN–224 removed only 37% of SMX from water. The
apparent difference in the adsorption efficiency of PCN–224
indicates that the carboxylic acid functional groups in drugs strongly
interacted with the open metal sites of the PCN–224 Zr6 node via coordination bonding, resulting in a high adsorption
capacity. This discovery provided a practical approach for the selective
adsorptive removal of various other drugs with carboxylate groups