Filtration membrane and method of production thereof
AssigneesNewSouth Innovations Pty Limited, Sydney Water Corporation
InventorsXinyue Wen, Yi You, Xiaoheng Jin, Heriberto Bustamante, Rakesh Joshi
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Abstract
A composite membrane is disclosed that comprises a porous polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE) or nitrocellulose membrane body. The membrane also comprises graphene oxide disposed on a surface of the membrane body. An array comprising two or more such composite membranes is also disclosed. A method of preparing the composite membrane is also disclosed. Further, a method of removing natural organic matter (NOM) from NOM-contaminated water, or water suspected of being contaminated with NOM, is disclosed.
Claims10
A method of preparing a composite membrane, the method comprising:
- (a) providing a porous polyvinylidene fluoride (PVDF) membrane body;
- (a1) contacting the porous PVDF membrane body with 1,5-pentanediol;
- and
- (b) filtering a dispersion comprising graphene oxide through the PVDF membrane body such that a continuous phase of the dispersion passes through a surface of the membrane body, thereby depositing graphene oxide on the surface of the PVDF membrane body.
Dependencies are inferred from the claim text.