Preparation of Supported Liquid Membranes, Characterization and Using in Separation Processes

Year 2019, Volume: 23 Issue: 1, 204 - 211, 01.04.2019

Figen Ilgaz Esengül Kır , Tuğba Sardohan Köseoğlu , Bülent Dede

https://doi.org/10.19113/sdufenbed.535819

Abstract

In
this study, two novel supported liquid membranes (SLMs) was developed by using
Trioctylphosphine oxide (TOPO) and N-(furane-2-iylmethyl)-N’-hydroxy-2-oxo-2-(4-phenylphenyl)
eteneimideamide (BKOF) as a carrier that have different functional groups, each
dissolved in the organic phase N-N-dimethyl formamide. Hydrophobic polyvinylidene
fluoride (PVDF) and polyamide microporous membranes were used as support to
prepare these membranes. Developed membranes were characterized with several
analytical methods, including scanning electron microscopy (SEM), energy
dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared
spectroscopy (FTIR), atomic force microscopy (AFM), and thermal gravimetric
analysis (TGA). Characterization processes confirm the novelty of membranes due
to different surface morphologies of prepared SLMs, compared to the PVDF and polyamide
supports. Performance of prepared SLMs were evaluated by rejection tests for Ni(II)
and Fe(III)) from aqueous solutions by using Donnan dialysis method. The
highest flux values were obtained when the feed phase concentration of 1.0x10^-1
M NiCl₂.6H₂O or 1.0x10^-1 M Fe(NO₃)₃.9H₂O,
the strip phase concentration of 1.0x10^-1 M HCl or 1.0x10^-1
M HNO₃, respectively.

Keywords

Aminoketooxime, Characterization, Fe(III), Ni(II), Supported liquid membrane, TOPO

Destekli Sıvı Membranların Hazırlanması, Karakterizasyonu ve Ayırma İşlemlerinde Kullanılması

Abstract

Bu
çalışmada, taşıyıcı olarak farklı fonksiyonel gruplara sahip ve her biri N-N-
dimetil formamit organik fazında çözünen trioktilfosfin oksit (TOPO) ve
N-(furan-2-ilmetil)-N’-hidroksi-2-okso-2-(4-fenilfenil)-etenimidamit (BKOF)
bileşikleri kullanılarak iki yeni tür destekli sıvı membran (DSM)
hazırlanmıştır. Destek tabakası olarak
hidrofobik poliviniliden florür (PVDF) ve poliamit mikroporöz membranlar
kullanılmıştır. Hazırlanan membranlar taramalı elektron mikroskobu
(SEM), enerji dağılım X-ray spektroskopisi (SEM-EDS), atomik güç mikroskobu
(AFM), fourier dönüşümlü infrared spektroskopisi (FTIR) ve termogravimetrik analiz
(TGA) gibi analitik metotlar kullanılarak karakterize edilmiştir.
Karakterizasyon işlemleri, hazırlanan DSM’lerin yüzey morfolojilerinin PVDF ve poliamit
destek tabakalarına kıyasla farklı olması, bu membranların yeni tür olduklarını
doğrulamaktadır. Hazırlanan DSM’lerin performası, donnan diyaliz metodu
kullanılarak sulu çözelti ortamından Ni(II) ve Fe(III) iyonlarının uzaklaştırma
deneylerinde değerlendirilmiştir. En yüksek akı değerleri besleme fazı
konsantrasyonu 1,0x10^-1 M NiCl₂^.6H₂O
veya 1,0x10^-1 M Fe(NO₃)₃.9H₂O ve
alıcı faz konsantrasyonları 1,0x10^-1 M HCl veya 1,0x10^-1 M
HNO₃ olduğu zaman elde edilmiştir.

Keywords

Aminoketooksim, Destekli sıvı membran, Fe(III), Karakterizasyon, Ni(II), TOPO

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