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The main objective of this study is to investigate the effectiveness of poly(divinylbenzene-N-methacryloyl-L-tryptophan methyl ester) [poly(DVB-MATrp)] microbeads (average diameter = 150-200 μm ) to remove bisphenol A (BPA) from aqueous phase. The poly(DVB-MATrp) microbeads were synthesized by copolymerizing N-methacryloyl-L-tryptophan methyl ester (MATrp) in the presence of divinylbenzene (DVB). The poly(DVB-MATrp) beads were characterized by Fourier transform infrared spectroscopy (FTIR), elemental analysis, scanning electron microscopy (SEM) and swelling test. The efficiency of poly(DVB-MATrp) microbeads for adsorption of BPA from aqueous medium was evaluated by investigating the effects of pH, initial concentration, contact time and temperature. The adsorption capacity of the microbeads was determined to be 171.1 mg/g at pH 7.0, 25 o C. The Langmuir and Freundlich isotherm models were used to fit adsorption data. The adsorption process obeyed pseudo-second-order kinetic model. The prepared microbeads can be repeatedly used to adsorption of BPA without a significant change in the adsorption capacity. Bu calismanin amaci, poli(divinilbenzen- N-metakriloil-L-triptofan metil ester ) [poli(DVB-MATrp)] mikrokurelerin (ortalama cap: 150-200 μm) sulu fazdan bisfenol A (BPA) uzaklastirilmasindaki etkinliginin arastirilmasidir. Poli(DVB-MATrp) mikrokureler N-metakriloil-L-triptofan metil ester (MATrp) monomerinin divinilbenzen (DVB) varliginda polimerlestirilmesi ile sentezlendi. Poli(DVB-MATrp) mikrokureler Fourier donusum infrared spektroskopisi (FTIR), elementel analiz, taramali elektron mikroskobu (SEM), ve sisme testi ile karakterize edildi. Poli(DVB-MATrp) mikrokurelerin sulu fazdan BPA adsorplamadaki etkinligi pH, baslangic derisimi, temas suresi ve sicakligin etkisinin arastirilmasi ile incelendi. Mikrokurelerin BPA adsorpsiyon kapasitesi pH 7.0 ve 25 o C sicaklikta 171,1 mg/g olarak belirlendi. Elde edilen adsorpsiyon verilerinin Langmuir ve Freundlich izoterm modellerine uygunlugu arastirildi. Adsorpsiyonun yalani-ikinci-derece kinetik modele uygun oldugu belirlendi. Sentezlenen mikrokureler, BPA adsorpsiyon kapasitesinde onemli bir degisiklik olmaksizin tekrar tekrar kullanildi

Bisphenol A Removal From Aqueous Phase via Polymeric Microbeads/ Polimerik Mikroküreler ile Bisfenol A Uzaklaştırılması