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

Authors : Bilgen OSMAN, Elif TÜMAY ÖZER

Pages : 249-258

Doi:10.15671/hjbc.617584

View : 19 | Download : 11

Publication Date : 2019-10-23

Article Type : Research Paper

Abstract :The main objective of this study is to investigate the effectiveness of polyinsert ignore into journalissuearticles values(divinylbenzene-N-methacryloyl-L-tryptophan methyl ester); [polyinsert ignore into journalissuearticles values(DVB-MATrp);] microbeads insert ignore into journalissuearticles values(average diameter = 150-200 μm ); to remove bisphenol A insert ignore into journalissuearticles values(BPA); from aqueous phase. The polyinsert ignore into journalissuearticles values(DVB-MATrp); microbeads were synthesized by copolymerizing N-methacryloyl-L-tryptophan methyl ester insert ignore into journalissuearticles values(MATrp); in the presence of divinylbenzene insert ignore into journalissuearticles values(DVB);. The polyinsert ignore into journalissuearticles values(DVB-MATrp); beads were characterized by Fourier transform infrared spectroscopy insert ignore into journalissuearticles values(FTIR);, elemental analysis, scanning electron microscopy insert ignore into journalissuearticles values(SEM); and swelling test. The efficiency of polyinsert ignore into journalissuearticles values(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 çalışmanın amacı, poliinsert ignore into journalissuearticles values(divinilbenzen- N-metakriloil-L-triptofan metil ester ); [poliinsert ignore into journalissuearticles values(DVB-MATrp);] mikrokürelerin insert ignore into journalissuearticles values(ortalama çap: 150-200 μm); sulu fazdan bisfenol A insert ignore into journalissuearticles values(BPA); uzaklaştırılmasındaki etkinliğinin araştırılmasıdır. Poliinsert ignore into journalissuearticles values(DVB-MATrp); mikroküreler N-metakriloil-L-triptofan metil ester insert ignore into journalissuearticles values(MATrp); monomerinin divinilbenzen insert ignore into journalissuearticles values(DVB); varlığında polimerleştirilmesi ile sentezlendi. Poliinsert ignore into journalissuearticles values(DVB-MATrp); mikroküreler Fourier dönüşüm infrared spektroskopisi insert ignore into journalissuearticles values(FTIR);, elementel analiz, taramalı elektron mikroskobu insert ignore into journalissuearticles values(SEM);, ve şisme testi ile karakterize edildi. Poliinsert ignore into journalissuearticles values(DVB-MATrp); mikrokürelerin sulu fazdan BPA adsorplamadaki etkinliği pH, başlangıç derişimi, temas süresi ve sıcaklığın etkisinin araştırılması ile incelendi. Mikrokürelerin BPA adsorpsiyon kapasitesi pH 7.0 ve 25 o C sıcaklıkta 171,1 mg/g olarak belirlendi. Elde edilen adsorpsiyon verilerinin Langmuir ve Freundlich izoterm modellerine uygunluğu araştırıldı. Adsorpsiyonun yalanı-ikinci-derece kinetik modele uygun olduğu belirlendi. Sentezlenen mikroküreler, BPA adsorpsiyon kapasitesinde önemli bir değişiklik olmaksızın tekrar tekrar kullanıldı
Keywords : Bisphenol A, removal, polymeric microbeads, endocrine disruptor