Cr(VI) Metal Katyonunun Elektromembran Ekstraksiyonu ile Uzaklaştırılması ve Kinetik Olarak İncelenmesi

Year 2024, Volume: 12 Issue: 3, 1267 - 1278, 31.07.2024

Gizem Argun , Gamze Çalık , Hamza Korkmaz Alpoğuz

https://doi.org/10.29130/dubited.1266968

Abstract

Yaptığımız deneylerde atık sularda rastlanan Cr(VI) metalinin bertaraf için elektrik akımı etkisi altında elektromembran ekstraksiyonu prosesi uygulamaları gerçekleştirilmiş ve Cr(VI) metal katyonunun taşınımı verimli şekilde gerçekleştirilmiştir. Yapılan deneylerde elektriksel alan kullanımın sebebi Cr(VI)’nın ekstraksiyonunun kontrolünün sağlanarak transportun hızlı şekilde gerçekleşmesidir. Taşımayı gerçekleştirecek ligandlar mezo-oktametil kaliks[4]pirol ve oksim türevi olarak belirlenerek söz konusu iki ligandın parametrelerinin karşılaştırılması yapılmıştır. Sabit akımda ve voltajda kinetik veriler incelenerek her bir değişkenden belirli zamanlarda besleme ve alıcı faz hücrelerinden alınan numunelerden Cr(VI) metalinin konsantrasyon verileri UV-spektrofotometresi kullanılarak tespit edilmiştir. Sabit elektrik akımında Cr (VI)’nın besleme fazdan alıcı faza transportunda sentezlediğimiz polimer içerikli membran kullanarak polimer destek malzemesi olarak selüloz triasetat (CTA), plastikleştirici olarak 2-nitrofeniloktil eter (2-NPOE) kullanılmıştır. Hız sabiti (k), akış hızı (J) , geçirgenlik katsayısı (P) ve geri kazanım faktörü (% RF) gibi çeşitli kinetik dataları hesaplanmıştır. 100 dakikalık deney süresi sonucunda %78,25 geri kazanım elde edilerek transportda yüksek verim elde edildiği görülmüştür. Sonuçta kısa sürede EME-PIM (elektromembran-polimer içerikli membran) uygulamasında Cr(VI) metalinin geçiriminin yüksek bir şekilde sağlandığı saptanmıştır.

Keywords

Polimer içerikli membran, Elektromembran, Mezo-Oktametil Kaliks[4]Pirol

Removal of Cr(VI) Metal Cation by Electromembrane Extraction and Kinetic Analysis

Abstract

In our experiments, electromembrane extraction process applications were carried out under the influence of electric current for the disposal of Cr(VI) metal found in wastewater, and the transport of Cr(VI) metal cation was carried out efficiently. The reason for the use of electric field in the experiments is that the extraction of Cr(VI) is controlled and the transport takes place quickly. The ligands that will carry out the transport were determined as meso-octamethyl calix[4]pyrrole and oxime derivatives, and the parameters of these two ligands were compared. By examining the kinetic data at constant current and voltage, the concentration data of Cr(VI) metal from the samples taken from the supply and receiver phase cells at certain times from each variable were determined using UV-spectrophotometer. In the transport of Cr (VI) from the feed phase to the acceptor phase in a constant electric current, we used the polymer-containing membrane we synthesized (cellulose triacetate (CTA) as the polymer support material, 2-nitrophenyloctyl ether (2-NPOE) as the plasticizer. Rate constant (k), flow Various kinetic data such as velocity (J), permeability coefficient (P) and recovery factor (% RF) were calculated.As a result of the 100-minute test period, it was seen that 78.25% recovery was achieved and high efficiency in transport was achieved.As a result, EME- It has been determined that the permeability of Cr(VI) metal is high in PIM application.

Keywords

Polymer inclusion membrane, Electromembrane, Meso-Octamethyl Calyx[4]Pyrrol

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