2023-10-112023-10-112015-02Osman, B. vd. (2015). "Properties of magnetic microbeads in removing bisphenol-A from aqueous phase". Journal of Porous Materials, 22(1), 37-46.1380-2224https://doi.org/10.1007/s10934-014-9870-zhttps://link.springer.com/article/10.1007/s10934-014-9870-zhttp://hdl.handle.net/11452/34291In this study, magnetic poly(ethylene glycol dimethacrylate-N-methacryloyl-l-tryptophan methyl ester) [m-poly(EGDMA-MATrp)] beads (average diameter = 53-103 mu m) were synthesized by copolymerizing of N-methacryloyl-l-tryptophan methyl ester with ethylene glycol dimethacrylate in the presence of magnetite (Fe3O4) and used for removal of bisphenol-A (BPA). The m-poly(EGDMA-MATrp) beads were characterized by N-2 adsorption/desorption isotherms (BET), X-ray photoelectron spectroscopy, scanning electron microscopy, infrared spectroscopy, thermal gravimetric analysis, electron spin resonance analysis and swelling studies. To evaluate the efficiency of m-poly(EGDMA-MATrp) beads for adsorption of BPA from aqueous medium, the effects of pH, initial concentration, contact time and temperature were analyzed. The maximum BPA adsorption capacity of the m-poly(EGDMA-MATrp) beads was determined as 139.6 mg/g at pH 5.0, 25 A degrees C. All the isotherm data can be fitted with the Langmuir, Freundlich and Dubinin-Radushkevich isotherm models. The adsorption process obeyed pseudo-second-order kinetic model.eninfo:eu-repo/semantics/closedAccessChemistryMaterials scienceAdsorptionBisphenol-AKineticsMagnetic beadsPorous materialsEnvironmental water samples17-alpha-ethinyl estradiolElectrochemical removalPhenolic-compoundsIsotope-dilutionWaste-waterAdsorptionCarbonExtractionOxidationAliphatic compoundsAmino acidsEnzyme kineticsEstersEthyleneEthylene glycolGravimetric analysisInfrared spectroscopyIron oxidesIsothermsMagnetic momentsMagnetiteMicrobeadsPhenolsPolyolsPorous materialsScanning electron microscopySwellingThermogravimetric analysisX ray photoelectron spectroscopyAdsorption capacitiesBis-phenol aEthylene glycol dimethacrylateInitial concentrationMagnetic beadsMagnetic microbeadsPseudo-second-order kinetic modelsThermal gravimetric analysisElectron spin resonance spectroscopyArticle0003476981000052-s2.0-849254959213746221Chemistry, appliedChemistry, physicalMaterials science, multidisciplinaryAdsorption; Endocrine disruptors; Biodegradation