Layer-by-layer assembly of graphene oxide membranes via electrostatic interaction and eludication of water and solute transport mechanisms
AssigneeUniversity of Maryland, College Park
InventorsBaoxia Mi, Meng Hu
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Abstract
A method for synthesizing a water purification membrane is presented. The method includes stacking a plurality of graphene oxide (GO) nanosheets to create the water purification membrane, the stacking involving layer-by-layer assembly of the plurality of GO nanosheets and forming a plurality of nanochannels between the plurality of GO nanosheets for allowing the flow of a fluid and for rejecting the flow of contaminants. The method further includes cross-linking the plurality of GO nanosheets by 1,3,5-benzenetricarbonyl trichloride on a polydopamine coated polysulfone support.
Claims15
A method for creating a water separation membrane, the method comprising:
- depositing a plurality of graphene oxide (GO) nanosheets via a layer-by-layer assembly;
- bonding the plurality of GO nanosheets with each other and with a support substrate;
- and
- cross-linking the plurality of GO nanosheets by 1,3,5-benzenetricarbonyl trichloride on the support substrate.
A method for creating a water separation membrane, the method comprising:
- depositing a plurality of graphene oxide (GO) nanosheets via a layer-by-layer assembly;
- electrostatically bonding the plurality of GO nanosheets with each other and with a support substrate;
- and
- tuning a structure, a charge and functionality of the plurality of GO nanosheets by using electrolytes.
Dependencies are inferred from the claim text.