A STUDY OF CHROMIUM (VI) IONS FIXATION AND TRANSPORT USING POLYMER INCLUSION MEMBRANE CONTAINING D2EHPA AS COMPLEXING AGENT

Q2 Materials Science Journal of Membrane Science and Research Pub Date : 2021-09-14 DOI:10.22079/JMSR.2021.531653.1470

O. Arous, S. Bensaadi, Nesrine Drai, Yassine Berbar, Z. Hammache, M. Amara, B. Bruggen

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引用次数: 3

Abstract

In this paper, polymeric inclusion membranes (PIMs) containing cellulose triacetate (CTA) and polycaprolactone (PCL) as polymer matrix and di-(2-ethylhexyl) phosphoric acid (D2EHPA) as a specific carrier were prepared by solution casting followed by solvent evaporation. Different polymeric membranes were modified by the addition of polyelectrolytes: polyvinylpyrrolidone (PVP), polyanetholsulfonic acid (PATSA) and polyethylene imine (PEI). 2-Nitrophenyl octyl ether (NPOE) was added in the different membranes as plasticizer. All synthesized membranes were characterized by Fourier transform infrared (FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). Transfer of chromium through selective membranes is accomplished by using a specific compound, called carrier. A study of the fixation and transport of Cr (VI) across a polymer inclusion membrane PIMs has shown a good removal from the treated solution. The Cr (VI) removal efficiency reached 42% after 8 hours of transport using the membrane containing (CTA + PCL + PATSA + D2EHPA) and 43% for only 2 hours using the membrane containing (CTA + PCL + PATSA+ NPOE).

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含d2ehpa的聚合物包合膜对六价铬离子的固定和转运研究

本文以三乙酸纤维素（CTA）和聚己内酯（PCL）为聚合物基体，二-（2-乙基己基）磷酸（D2EHPA）为特定载体，通过溶液浇铸和溶剂蒸发制备了聚合物包合膜。通过添加聚电解质对不同的聚合物膜进行改性：聚乙烯吡咯烷酮（PVP）、聚对羟基磺酸（PATSA）和聚乙烯亚胺（PEI）。在不同的膜中加入2-硝基苯基辛基醚（NPOE）作为增塑剂。用傅立叶变换红外光谱（FTIR）、热重分析（TGA）和扫描电子显微镜（SEM）对合成的膜进行了表征。铬通过选择性膜的转移是通过使用一种称为载体的特定化合物来实现的。对Cr（VI）通过聚合物包合膜PIM的固定和运输的研究表明，从处理过的溶液中可以很好地去除。使用含有（CTA+PCL+PATSA+D2EHPA）的膜运输8小时后，Cr（VI）的去除率达到42%，使用含有（CTA+PCL+PPATSA+NPOE）的膜仅运输2小时后，去除率达到43%。

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来源期刊

Journal of Membrane Science and Research Materials Science-Materials Science (miscellaneous)

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

8 weeks

期刊介绍： The Journal of Membrane Science and Research (JMSR) is an Open Access journal with Free of Charge publication policy, which provides a focal point for academic and industrial chemical and polymer engineers, chemists, materials scientists, and membranologists working on both membranes and membrane processes, particularly for four major sectors, including Energy, Water, Environment and Food. The journal publishes original research and reviews on membranes (organic, inorganic, liquid and etc.) and membrane processes (MF, UF, NF, RO, ED, Dialysis, MD, PV, CDI, FO, GP, VP and etc.), membrane formation/structure/performance, fouling, module/process design, and processes/applications in various areas. Primary emphasis is on structure, function, and performance of essentially non-biological membranes.