Adsorption of nonsteroidal anti-inflammatory drugs onto composite beads of a 1D flexible framework MIL-53(Al): Adsorption mechanisms and fixed-bed study

The adsorption mechanisms of three nonsteroidal anti-inflammatory drugs (NSAIDs), ibuprofen (IBP), ketoprofen (KET), and naproxen (NPX), applied onto a pristine 1D flexible framework MIL-53(Al) were compared with those adsorbed on MIL-53(Al)/alginate (AM) polyvinylidene fluoride/MIL-53(Al) (PM) composite beads through investigation single-solute batch fixed-bed systems. exhibited outstanding capacities for the NSAIDs (IBP > NPX KET) in comparison to powdered activated carbon via an increase pore diffusion supported by breathing effect phenomena. at 3:25 w/w (AM25) better than higher ratios (3:50 3:75 w/w). However, AM25 was 2.2–5.5-times lower that MIL-53(Al). dominant interactions IBP between hydrogen bonding Al–OH(OH2) node MIL-53(Al), carboxylic groups IBP, group terephthalic acid high selectivity against background matrix wastewater obtained from hospital, it could be low concentration range (μg/L). An empty bed contact time (38.7 min 96.9 min) systems improve usage rate fractional utilization; moreover, breakthrough removal percentage increased up 98.1%. multi-layer log-Thomas model can fitted well all curves.