3D HIERARCHICAL NANOPOROUS GRAPHENE MEMBRANE FOR OIL/WATER SEPARATION

A multi-functionalized NPG nanosheet can be used to form a 3D hierarchical multi-functionalized NPG membrane (NPG-pTD membrane) for use in oil/water separation. The NPG-pTD membrane includes a plurality of multi-functionalized NPG nanosheets in a stacked assembly with polyphenolic nanoparticles atta...

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Bibliographische Detailangaben
Hauptverfasser:	HASAN, Shadi Wajih, HEGAB, Hanaa Mohamed Samy Mohamed Saber, ELMEKAWY, Ahmed Mamdouh Mahmoud, BANAT, Fawzi
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	A multi-functionalized NPG nanosheet can be used to form a 3D hierarchical multi-functionalized NPG membrane (NPG-pTD membrane) for use in oil/water separation. The NPG-pTD membrane includes a plurality of multi-functionalized NPG nanosheets in a stacked assembly with polyphenolic nanoparticles attached to the NPG nanosheets throughout the membrane. The NPG-pTD membrane can be formed via in-situ polymerization, which is vacuum assisted, such that the phenolic compounds from the multi-functionalized NPG nanosheet form the nanoparticles. Interlayer d-spacing between the adjacent nanosheets in the stacked assembly creates expansive and constricted channels, in addition to nanochannels provided by the pores in the nanosheets, such that the membrane has aquaporin-like properties. The NPG-pTD membrane exhibits high permeability and flux and superior selectivity for effective oil/water separation.