Phase inverted hydrophobic polyethersulfone/iron oxide-oleylamine ultrafiltration membranes for efficient water-in-oil emulsion separation

被引：15
作者：
Abuhasheesh Y.H. [1 ]
Hegab H.M. [1 ]
Wadi V.S. [1 ]
Al Marzooqi F. [1 ]
Banat F. [1 ]
Aljundi I.H. [2 ,3 ]
Hasan S.W. [1 ]
机构：
[1] Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi
[2] Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran
[3] Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals
来源：
Chemosphere | 2023年 / 337卷
关键词：
Hydrophobic; Iron oxide-oleylamine; Mixed matrix membranes; Oil/water separation; Phase inversion;
D O I：
10.1016/j.chemosphere.2023.139431
中图分类号：
学科分类号：
摘要：
Exploration and transportation of oil offshore can result in oil spills that cause a wide range of adverse environmental consequences and destroy aquatic life. Membrane technology outperformed the conventional procedures for oil emulsion separation due to its improved performance, reduced cost, removal capacity, and greater eco-friendly. In this study, a hydrophobic iron oxide-oleylamine (Fe-Ol) nanohybrid was synthesized and incorporated into polyethersulfone (PES) to prepare novel PES/Fe-Ol hydrophobic ultrafiltration (UF) mixed matrix membranes (MMMs). Several characterization techniques were performed to characterize the synthesized nanohybrid and fabricated membranes, including scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), contact angle, and zeta potential. The membranes' performance was assessed using a surfactant-stabilized (SS) water-in-hexane emulsion as a feed and a dead-end vacuum filtration setup. The incorporation of the nanohybrid enhanced the hydrophobicity, porosity, and thermal stability of the composite membranes. At 1.5 wt% Fe-Ol nanohybrid, the modified PES/Fe-Ol MMM membranes reported high water rejection efficiency of 97.4% and 1020.4 LMH filtrate flux. The re-usability and antifouling properties of the membrane were examined over five filtration cycles, demonstrating its great potential for use in water-in-oil separation. © 2023 Elsevier Ltd
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