Nanomaterials, Journal Year: 2023, Volume and Issue: 13(3), P. 489 - 489

Published: Jan. 25, 2023

Broad-spectrum antibiotics from the fluoroquinolone family have emerged as prominent water contaminants, among other pharmaceutical pollutants. In present study, an antibacterial magnetic molecularly imprinted polymer (MMIP) composite was successfully fabricated using carboxy methyl dextrin grafted to poly(aniline-co-meta-phenylenediamine) in presence of Fe3O4/CuO nanoparticles and ciprofloxacin antibiotic. The characteristics obtained materials were investigated FTIR, XRD, VSM, TGA, EDX, FE-SEM, zeta potential, BETanalyses. Afterward, MMIP’s activity adsorption effectiveness for removing aqueous solutions explored. results tests showed that MMIP had effect against Escherichia coli, a Gram-negative pathogen (16 mm), Staphylococcus aureus, Gram-positive (22 mm). Adsorption efficacy evaluated under variety experimental conditions, including solution pH, adsorbent dosage, contact time, initial concentration. maximum capacity (Qmax) determined be 1111.1 mg/g 3 mg MMIP, with concentration 400 mg/L at pH 7, within 15 min, agitated 25 °C, well-described by Freundlich isotherm model. kinetic data well represented pseudo-second-order Electrostatic interaction, cation exchange, π-π interactions, hydrogen bonding mostly able adsorb majority onto MMIP. Adsorption–desorption experiments revealed could retrieved reused no noticeable reduction after three consecutive cycles.

Language: Английский