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 oC. 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, poli(divinilbenzen-N-metakriloil-L-triptofan metil ester)
[poli(DVB-MATrp)] mikrokürelerin (ortalama çap: 150-200 μm) sulu fazdan
bisfenol A (BPA) uzaklaştırılmasındaki etkinliğinin araştırılmasıdır.
Poli(DVB-MATrp) mikroküreler N-metakriloil-L-triptofan metil ester (MATrp)
monomerinin divinilbenzen (DVB) varlığında polimerleştirilmesi ile sentezlendi.
Poli(DVB-MATrp) mikroküreler Fourier dönüşüm infrared spektroskopisi (FTIR), elementel
analiz, taramalı elektron mikroskobu (SEM), ve şisme testi ile karakterize
edildi. Poli(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 oC 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
the Scientific and Technological Research Council of Turkey (TUBİTAK)
118 Z 021
This work was supported by the Scientific and Technological Research Council of Turkey and was assigned project number 118 Z 021.
118 Z 021
Primary Language | English |
---|---|
Subjects | Engineering |
Journal Section | Articles |
Authors | |
Project Number | 118 Z 021 |
Publication Date | October 23, 2019 |
Acceptance Date | September 9, 2019 |
Published in Issue | Year 2019 Volume: 47 Issue: 3 |
HACETTEPE JOURNAL OF BIOLOGY AND CHEMİSTRY
Copyright © Hacettepe University Faculty of Science