TWO-DIMENSIONAL MATERIALS AND USES THEREOF

摘要

Various systems and methods relating to two-dimensional materials such as graphene. A membrane include a cross-linked graphene platelet polymer that includes a plurality of cross-linked graphene platelets. The cross-linked graphene platelets include a graphene portion and a cross-linking portion. The cross-linking portion contains a 4 to 10 atom link. The cross-linked graphene platelet polymer is produced by reaction of an epoxide functionalized graphene platelet and a (meth)acrylate or (meth)acrylamide functionalized cross-linker.

主权项

1. A process comprising:
exposing a multilayered material to ions provided by an ion source, the multilayered material comprising a first layer comprising a two-dimensional first material and a second layer of a second material in contact with the first layer, the ions being provided with an ion energy ranging from 1.0 keV to 10 keV, and a flux from 0.1 nA/mm2 to 100 nA/mm2; and producing a perforated two-dimensional material by producing a plurality of holes in the two-dimensional first material by interacting a plurality of ions provided by the ion source, neutralized ions or a combination thereof with the two-dimensional first material and with the second material. introducing one or more occluding moieties at least partially into the at least one uncovered pore to occlude the at least one uncovered pore; introducing a composite membrane comprising a porous substrate having a plurality of pores and a sheet of the perforated two-dimensional material disposed on a surface of the porous substrate and defining a top surface of the membrane, wherein the sheet of two-dimensional material covers at least a portion of the pores of the substrate and wherein at least one pore of the substrate is not covered by the two-dimensional material; incorporating the perforated two-dimensional material into a blood filtration device that comprises two or more membranes which each comprise the perforated two-dimensional material, and further comprises a membrane a membrane comprising a cross-linked graphene platelet polymer comprising a plurality of cross-linked graphene platelets comprising a graphene portion and a cross-linking portion, the cross-linking portion contains a 4 to 10 atom link, and the cross-linked graphene platelet polymer being produced by reaction of an epoxide functionalized graphene platelet and a (meth)acrylate or (meth)acrylamide functionalized cross-linker; exposing blood from a patient to the blood filtration device having a hemodialysis membrane comprising the perforated two-dimensional material, the two-dimensional first material being disposed upon a porous support structure; removing a contaminant from the blood with the hemodialysis membrane; and recirculating purified blood to the patient.