caa a22 4500 606194789 CHVBK 20210128100916.0 cr unu---uuuuu 210128e20150201xx s 000 0 eng 10.1007/s10934-014-9870-z doi (NATIONALLICENCE)springer-10.1007/s10934-014-9870-z Properties of magnetic microbeads in removing bisphenol-A from aqueous phase [Elektronische Daten] [Bilgen Osman, Elif Özer, Ali Kara, Emel Yeşilova, Necati Beşirli] In this study, magnetic poly(ethylene glycol dimethacrylate-N-methacryloyl-l-tryptophan methyl ester) [m-poly(EGDMA-MATrp)] beads (average diameter=53-103μm) 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 N2 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 139.6mg/g at pH 5.0, 25°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. Springer Science+Business Media New York, 2014 Adsorption nationallicence Bisphenol-A nationallicence Kinetics nationallicence Magnetic beads nationallicence Porous materials nationallicence Osman Bilgen Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut Özer Elif Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut Kara Ali Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut Yeşilova Emel Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut Beşirli Necati Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 37-46 1380-2224 22:1<37 2015 22 10934 https://doi.org/10.1007/s10934-014-9870-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-014-9870-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Osman Bilgen Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut NATIONALLICENCE 700 1- Özer Elif Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut NATIONALLICENCE 700 1- Kara Ali Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut NATIONALLICENCE 700 1- Yeşilova Emel Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut NATIONALLICENCE 700 1- Beşirli Necati Department of Chemistry, Faculty of Arts and Science, Uludag University, 16059, Bursa, Turkey aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/1(2015-02-01), 37-46 1380-2224 22:1<37 2015 22 10934