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Study on the PVdF Nanofibers and Graphene Oxide Hybrid Membrane  

Jung, Hyemin (Department of Chemical System Engineering, Keimyung University)
Chen, Weidong (Department of Chemical System Engineering, Keimyung University)
Yang, Woo Seok (Electronic Materials & Device Research Center, Korea Electronics Technology Institute)
Byun, Hongsik (Department of Chemical System Engineering, Keimyung University)
Publication Information
Membrane Journal / v.23, no.3, 2013 , pp. 204-210 More about this Journal
Abstract
Recently, many applications with grapheneoxide (GO) have been reported. But GO membrane for water treatment has not been developed. In this study we prepared polyvinylidene difluoride (PVdF) nanofiber/GO hybrid membrane (FG) for the microfiltration application. The PVdF substrate membrane was prepared by using the electrospinning method with a solution of PVdF in N,N-dimethylacetamide (DMAc) and acetone. GO sheets used in this study were prepared by modified Hummer's method. The PVdF/GO hybrid membrane was finally prepared by spraying the GO solution dispersed in ethanol on the PVdF nanofiber. The successfully prepared FG was thoroughly examined by SEM, Raman, contact angle, porometer and UTM, and water-flux was measured with designed cell (Dead-End Cell). From the contact angle results, it was found that the surface of FG membrane was reformed by hydrophilic property and the water permeability was increased about 2.5 times than that of the nascent PVdF membrane, indicating the possible alternative of the commercial MF membrane.
Keywords
graphene oxide; polyvinylidene difluoride; electrospinning; microfiltration;
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