Mechanistic insights into pH-dependent ofloxacin adsorption on nanoporous carbons
Abstract
species experiences significantly greater electrostatic repulsion, amplified by fluorine's high electronegativity, severely limiting adsorption performance. Under neutral conditions, a mixture of four ofloxacin forms dominated by zwitterionic species with high dipole moments, combined with reduced carbon surface charge, yields adsorption performance equivalent to or exceeding acidic conditions. These findings provide design principles for pH-tuned nanoporous carbon adsorbents in real water remediation processes, demonstrating that optimal removal of fluorinated quinolones can be achieved by controlling solution pH and tailoring carbon surface functionalization.
Fields of Study & Subjects
Mesoporous Materials and Catalysis
Layered Double Hydroxides Synthesis and Applications
Adsorption and biosorption for pollutant removal
Publication details
- Journal / source
- Physical Chemistry Chemical Physics
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 28
- Issue
- 15
- Pages
- 9358–9381
- Publication date
- 1 January 2026
- Language
- EN