Main Article Content
Oily wastewater is one of the most challenging streams to deal with especially if the oil exists in emulsified form. In this study, electrospinning method was used to prepare nanofiberous polyvinylidene fluoride (PVDF) membranes and study their performance in oil removal. Graphene particles were embedded in the electrospun PVDF membrane to enhance the efficiency of the membranes. The prepared membranes were characterized using a scanning electron microscopy (SEM) to verify the graphene stabilization on the surface of the membrane homogeneously; while FTIR was used to detect the functional groups on the membrane surface. The membrane wettability was assessed by measuring the contact angle. The PVDF and PVDF / Graphene membranes efficiency was tested in separation of emulsified oil from aqueous solutions. The results showed that PVDF-Graphene nanofiber membrane exhibited better performance than the plain PVDF nanofiber membrane with average water flux of 210 and 180 L.m-2.h-1, respectively. Both membranes showed high oil rejection with more than 98%.
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Al-Furaiji MHO, Arena JT, Chowdhury M, Benes N, Nijmeijer A, McCutcheon JR. Use of forward osmosis in treatment of hyper-saline water. Desalin Water Treat. 2018; 133:1–9.
Waisi BI, Arena JT, Benes NE, Nijmeijer A, McCutcheon JR. Activated carbon nanofiber nonwoven for removal of emulsified oil from water. Micropor Mesopor Mat. 2020 Apr; 296:109966.
Krishnan S, Rawindran H, Sinnathambi CM, Lim JW. Comparison of various advanced oxidation processes used in remediation of industrial wastewater laden with recalcitrant pollutants. IOP Conf Ser Mater Sci Eng. 2017 Jun; 206(1):012089.
Al-Furaiji M, Benes N, Nijmeijer A, McCutcheon JR. Use of a Forward Osmosis–Membrane Distillation Integrated Process in the Treatment of High-Salinity Oily Wastewater. Ind Eng Chem Res. 2019 Jan 16; 58(2):956–62.
Woo YC, Kim Y, Shim W-G, Tijing LD, Yao M, Nghiem LD, et al. Graphene/PVDF flat-sheet membrane for the treatment of RO brine from coal seam gas produced water by air gap membrane distillation. J Memb Sci. 2016 Sep; 513:74–84.
Al-Furaiji M, Benes N, Nijmeijer A, McCutcheon JR. Application of direct contact membrane distillation for treating high salinity solutions: impact of membrane structure and chemistry Desalin Water Treat. 2018; 136:31–8.
Al-Furaiji M, Arena JT, Ren J, Benes N, Nijmeijer A, McCutcheon JR. Triple-Layer Nanofiber Membranes for Treating High Salinity Brines Using Direct Contact Membrane Distillation. Membranes (Basel). 2019 May 6; 9(5):60.
Waisi BI, Manickam SS, Benes NE, Nijmeijer A, McCutcheon JR. Activated Carbon Nanofiber Nonwovens: Improving Strength and Surface Area by Tuning Fabrication Procedure. Ind Eng Chem Res. 2019 Mar 13; 58(10):4084–9.
Yuan X, Li W, Liu H, Han N, Zhang X. A novel PVDF/graphene composite membrane based on electrospun nanofibrous film for oil/water emulsion separation. Compos Commun. 2016 Nov 1;2:5-8.
Boehm HP, Setton R, Stumpp E. Nomenclature and terminology of graphite intercalation compounds (IUPAC Recommendations 1994). Pure Appl Chem. 1994 Jan 1; 66(9):1893–901.
Bonaccorso F, Colombo L, Yu G, Stoller M, Tozzini V, Ferrari AC, et al. Graphene, related two- dimensional crystals, and hybrid systems for energy conversion and storage. Science 80-. 2015 Jan 2;347(6217):1246501.
Yoon K, Kim K, Wang X, Fang D, Hsiao BS, Chu B. High flux ultrafiltration membranes based on electrospun nanofibrous PAN scaffolds and chitosan coating. Polymer (Guildf). 2006;47(7):2434–41.
Jang W, Yun J, Jeon K, Byun H. PVdF/graphene oxide hybrid membranes via electrospinning for water treatment applications. RSC Adv. 2015;5(58):46711–7.
Zaidouny L, Abou‐Daher M, Tehrani‐Bagha AR, Ghali K, Ghaddar N. Electrospun nanofibrous polyvinylidene fluoride‐co‐hexafluoropropylene membranes for oil–water separation. J Appl Polym Sci. 2020 Sep 10;137(34):49394.
Lou L, Kendall RJ, Smith E, Ramkumar SS. Functional PVDF/rGO/TiO2 nanofiber webs for the removal of oil from water. Polymer (Guildf). 2020 Jan;186:122028.
Kadhom M, Albayati N, Salih S, Al-Furaiji M, Bayati M, Deng B. Role of Cellulose Micro and Nano Crystals in Thin Film and Support Layer of Nanocomposite Membranes for Brackish Water Desalination. Membranes. 2019 Aug 15; 9(8):101.
Essalhi M, Khayet M. Self-sustained webs of polyvinylidene fluoride electrospun nano-fibers: Effects of polymer concentration and desalination by direct contact membrane distillation. J Membrane Sci. 2014; 454:133–43.
Essalhi M, Khayet M. Self-sustained webs of polyvinylidene fluoride electrospun nanofibers at different electrospinning times: 1. Desalination by direct contact membrane distillation. J Membrane Sci. 2013; 433:167–79.
Abbasipour M, Khajavi R, Yousefi AA, Yazdanshenas ME, Razaghian F. The piezoelectric response of electrospun PVDF nanofibers with graphene oxide, graphene, and halloysite nanofillers: a comparative study. J Mater Sci Mater Electron. 2017 Nov 15; 28(21):15942–52.
Ren J, Woo YC, Yao M, Lim S, Tijing LD, Shon HK. Nanoscale zero-valent iron (nZVI) immobilization onto graphene oxide (GO)-incorporated electrospun polyvinylidene fluoride (PVDF) nanofiber membrane for groundwater remediation via gravity-driven membrane filtration. Sci Total Environ. 2019 Oct; 688:787–96.
Wang F, Wu Y, Huang Y. Novel application of graphene oxide to improve hydrophilicity and mechanical strength of aramid nanofiber hybrid membrane. Compos Part A-Appl S. 2018 Jul; 110:126–32.
Zhang W, Shi Z, Zhang F, Liu X, Jin J, Jiang L. Superhydrophobic and Superoleophilic PVDF Membranes for Effective Separation of Water-in-Oil Emulsions with High Flux. Adv Mater. 2013 Apr 11; 25(14):2071–6.
Ahmadi A, Qanati O, Seyed Dorraji MS, Rasoulifard MH, Vatanpour V. Investigation of antifouling performance a novel nanofibrous S-PVDF/PVDF and S-PVDF/PVDF/GO membranes against negatively charged oily foulants. J Membrane Sci. 2017 Aug;536:86–97.