Patent
US 10,918,998FUNCTIONALIZED SINGLE-LAYER GRAPHENE-BASED THIN FILM COMPOSITE AND METHOD OF PRODUCING THE SAME
James Antony PRINCE
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,918,998Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows the growth of desalination market.
Figure 2 illustrates a thin film composite (TFC) membrane on support.
Figure 3 shows a typical thin film composite (TFC) reaction.
Figure 4 shows the performance analysis of graphene-based membranes over conventional membranes, in terms of permeability and selectivity.
Figure 5 is an image illustrating the functionalized graphene-based thin film composite membrane in accordance with an embodiment of the present invention.
Figure 6 is a schematic representation of the synthesis of the amine and acid functionalized graphene in accordance with an embodiment of the present invention.
Figure 7 shows the crosslinking mechanism and formation of graphene-based TFC using amine and acid functionalized graphene and trimesoyl chloride.
Figure 8 is a schematic representation of the water channels formed using amine and acid functionalized graphene and trimesoyl chloride. SUBSTITUTE SPECIFICATION-MARKED-UP COPY
Figure 9 shows the crosslinking mechanism and the formation of graphene-based TFC using amine and acid functionalized graphene and acid chloride functionalized graphene.
Figure 10 is a schematic representation of the water channels fo rm ed using amine and acid functionalized graphene and acid chloride functionalized graphene.
Figure 11 shows the crosslinking mechanism and fo rm ation of the graphene-based TFC using acid chloride functionalized graphene and meta phenylene diamine (MPD).
Figure 12 illustrates the water channels formed in accordance with an embodiment of the present invention.
Figure 13 shows a functionalized single-layer graphene-based TFC modified hollow fiber membrane.
Figure 14 shows a functionalized single-layer graphene-based TFC modified flat sheet membrane.
Figure 15 shows a FTIR spectra of neat, functionalized graphene and the TFC layer.
Figure 16 shows a Raman spectra of graphene, carboxylated graphene, amine functionalized graphene and the graphene-based TFC.
Figure 17 shows the 3D modeling a- 1, magnified 3D modelling a-2 and actual scanning electron microscopic (SEM) image of the graphene based TFC modified membrane surface b-1 and magnified SEM image b-2.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A functionalized single-layer graphene-based thin film composite comprising a first component functionalized with amine and acid functional groups and a second component having at least a-COCI functional group that forms amide linkages with the first component to form a plurality of water channels within the thin film composite, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s) and the graphene is selected from the group consisting of exfoliated graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Previously presented
The functionalized single-layer graphene-based thin film composite according to claim 1, wherein the plurality of water channels having an average diameter ranging from 0.001 to 100 nm. Original
Canceled
Canceled
Canceled
A graphene-based thin film composite membrane comprising: (a) a porous substrate; and (b) a functionalized single-layer graphene-based thin film composite comprising a first component functionalized with amine and acid [[and]] functional groups and a second component having at least a-COC I functional group that forms amide linkages with the first component to form a plurality of water channels within the thin film composite, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s) graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Currently amended
The graphene-based thin film composite membrane according to claim 7, wherein the plurality of water channels having an average diameter ranging from 0.001 nm to 100 nm. Original
The graphene-based thin film composite membrane according to claim 7, wherein the porous substrate is an ultrafiltration membrane or a microfiltration membrane fabricated from material selected from the group consisting of polysulfone, cellulose acetate, polyvinyl alcohol, polyvinyl chloride, polyvinylidene fluoride, cellulose nitrate, polyethersulphone and poly acrylonitrile. Original
The graphene-based thin film composite membrane according to claim 7, wherein the functionalized single-layer graphene-based thin film composite having a thickness ranging from 2 nm to 2,000 nm. Original
The graphene-based thin film composite membrane according to claim 7, wherein the graphene-based thin film composite membrane is a hollow fiber membrane. Previously presented
The graphene-based thin film composite membrane according to claim 7, wherein the graphene-based thin film composite membrane is a flat sheet membrane. Previously presented
Canceled
Canceled
Canceled
A method of producing a functionalized single-layer graphene-based thin film composite membrane, the method comprising: (i) pretreating the surface of a porous substrate membrane with a first component functionalized with amine and acid functional groups; (ii) drying the pretreated porous substrate membrane; and (ii) contacting the pretreated porous substrate membrane with a second component having at least a-COd functional group that forms amide linkages with the first component deposited onto the surface of the porous substrate to form a thin film composite layer having a plurality of water channels on the said porous substrate, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s), and the graphene is selected from the group consisting of exfoliated graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Previously presented
The method according to claim 15, further comprising: removing excess first and second components from the porous substrate membrane; and heat-curing the porous substrate membrane. Original
The method according to claim 15, wherein the step of contacting is carried out for 0.5 to 5 minutes. Original
The method according to claim 15, wherein the plurality of water channels having an average diameter ranging from 0.001 nm to 100 nm. Original
Canceled
Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
functionalized single-layer graphene-based thin film composite
graphene-based thin film composite membrane
Materials described outside the worked examples.
amine and acid functionalized graphene (first component)
acid chloride modified graphene (second component)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 15 shows a FTIR spectra of neat, functionalized graphene and the TFC layer.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
average water channel diameter (claim range) | 0.001–100 nm | amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
average water channel diameter preferred range (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,918,998Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows the growth of desalination market.
Figure 2 illustrates a thin film composite (TFC) membrane on support.
Figure 3 shows a typical thin film composite (TFC) reaction.
Figure 4 shows the performance analysis of graphene-based membranes over conventional membranes, in terms of permeability and selectivity.
Figure 5 is an image illustrating the functionalized graphene-based thin film composite membrane in accordance with an embodiment of the present invention.
Figure 6 is a schematic representation of the synthesis of the amine and acid functionalized graphene in accordance with an embodiment of the present invention.
Figure 7 shows the crosslinking mechanism and formation of graphene-based TFC using amine and acid functionalized graphene and trimesoyl chloride.
Figure 8 is a schematic representation of the water channels formed using amine and acid functionalized graphene and trimesoyl chloride. SUBSTITUTE SPECIFICATION-MARKED-UP COPY
Figure 9 shows the crosslinking mechanism and the formation of graphene-based TFC using amine and acid functionalized graphene and acid chloride functionalized graphene.
Figure 10 is a schematic representation of the water channels fo rm ed using amine and acid functionalized graphene and acid chloride functionalized graphene.
Figure 11 shows the crosslinking mechanism and fo rm ation of the graphene-based TFC using acid chloride functionalized graphene and meta phenylene diamine (MPD).
Figure 12 illustrates the water channels formed in accordance with an embodiment of the present invention.
Figure 13 shows a functionalized single-layer graphene-based TFC modified hollow fiber membrane.
Figure 14 shows a functionalized single-layer graphene-based TFC modified flat sheet membrane.
Figure 15 shows a FTIR spectra of neat, functionalized graphene and the TFC layer.
Figure 16 shows a Raman spectra of graphene, carboxylated graphene, amine functionalized graphene and the graphene-based TFC.
Figure 17 shows the 3D modeling a- 1, magnified 3D modelling a-2 and actual scanning electron microscopic (SEM) image of the graphene based TFC modified membrane surface b-1 and magnified SEM image b-2.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A functionalized single-layer graphene-based thin film composite comprising a first component functionalized with amine and acid functional groups and a second component having at least a-COCI functional group that forms amide linkages with the first component to form a plurality of water channels within the thin film composite, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s) and the graphene is selected from the group consisting of exfoliated graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Previously presented
The functionalized single-layer graphene-based thin film composite according to claim 1, wherein the plurality of water channels having an average diameter ranging from 0.001 to 100 nm. Original
Canceled
Canceled
Canceled
A graphene-based thin film composite membrane comprising: (a) a porous substrate; and (b) a functionalized single-layer graphene-based thin film composite comprising a first component functionalized with amine and acid [[and]] functional groups and a second component having at least a-COC I functional group that forms amide linkages with the first component to form a plurality of water channels within the thin film composite, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s) graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Currently amended
The graphene-based thin film composite membrane according to claim 7, wherein the plurality of water channels having an average diameter ranging from 0.001 nm to 100 nm. Original
The graphene-based thin film composite membrane according to claim 7, wherein the porous substrate is an ultrafiltration membrane or a microfiltration membrane fabricated from material selected from the group consisting of polysulfone, cellulose acetate, polyvinyl alcohol, polyvinyl chloride, polyvinylidene fluoride, cellulose nitrate, polyethersulphone and poly acrylonitrile. Original
The graphene-based thin film composite membrane according to claim 7, wherein the functionalized single-layer graphene-based thin film composite having a thickness ranging from 2 nm to 2,000 nm. Original
The graphene-based thin film composite membrane according to claim 7, wherein the graphene-based thin film composite membrane is a hollow fiber membrane. Previously presented
The graphene-based thin film composite membrane according to claim 7, wherein the graphene-based thin film composite membrane is a flat sheet membrane. Previously presented
Canceled
Canceled
Canceled
A method of producing a functionalized single-layer graphene-based thin film composite membrane, the method comprising: (i) pretreating the surface of a porous substrate membrane with a first component functionalized with amine and acid functional groups; (ii) drying the pretreated porous substrate membrane; and (ii) contacting the pretreated porous substrate membrane with a second component having at least a-COd functional group that forms amide linkages with the first component deposited onto the surface of the porous substrate to form a thin film composite layer having a plurality of water channels on the said porous substrate, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s), and the graphene is selected from the group consisting of exfoliated graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Previously presented
The method according to claim 15, further comprising: removing excess first and second components from the porous substrate membrane; and heat-curing the porous substrate membrane. Original
The method according to claim 15, wherein the step of contacting is carried out for 0.5 to 5 minutes. Original
The method according to claim 15, wherein the plurality of water channels having an average diameter ranging from 0.001 nm to 100 nm. Original
Canceled
Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
functionalized single-layer graphene-based thin film composite
graphene-based thin film composite membrane
Materials described outside the worked examples.
amine and acid functionalized graphene (first component)
acid chloride modified graphene (second component)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 15 shows a FTIR spectra of neat, functionalized graphene and the TFC layer.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
average water channel diameter (claim range) | 0.001–100 nm | amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
average water channel diameter preferred range (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,918,998Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows the growth of desalination market.
Figure 2 illustrates a thin film composite (TFC) membrane on support.
Figure 3 shows a typical thin film composite (TFC) reaction.
Figure 4 shows the performance analysis of graphene-based membranes over conventional membranes, in terms of permeability and selectivity.
Figure 5 is an image illustrating the functionalized graphene-based thin film composite membrane in accordance with an embodiment of the present invention.
Figure 6 is a schematic representation of the synthesis of the amine and acid functionalized graphene in accordance with an embodiment of the present invention.
Figure 7 shows the crosslinking mechanism and formation of graphene-based TFC using amine and acid functionalized graphene and trimesoyl chloride.
Figure 8 is a schematic representation of the water channels formed using amine and acid functionalized graphene and trimesoyl chloride. SUBSTITUTE SPECIFICATION-MARKED-UP COPY
Figure 9 shows the crosslinking mechanism and the formation of graphene-based TFC using amine and acid functionalized graphene and acid chloride functionalized graphene.
Figure 10 is a schematic representation of the water channels fo rm ed using amine and acid functionalized graphene and acid chloride functionalized graphene.
Figure 11 shows the crosslinking mechanism and fo rm ation of the graphene-based TFC using acid chloride functionalized graphene and meta phenylene diamine (MPD).
Figure 12 illustrates the water channels formed in accordance with an embodiment of the present invention.
Figure 13 shows a functionalized single-layer graphene-based TFC modified hollow fiber membrane.
Figure 14 shows a functionalized single-layer graphene-based TFC modified flat sheet membrane.
Figure 15 shows a FTIR spectra of neat, functionalized graphene and the TFC layer.
Figure 16 shows a Raman spectra of graphene, carboxylated graphene, amine functionalized graphene and the graphene-based TFC.
Figure 17 shows the 3D modeling a- 1, magnified 3D modelling a-2 and actual scanning electron microscopic (SEM) image of the graphene based TFC modified membrane surface b-1 and magnified SEM image b-2.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A functionalized single-layer graphene-based thin film composite comprising a first component functionalized with amine and acid functional groups and a second component having at least a-COCI functional group that forms amide linkages with the first component to form a plurality of water channels within the thin film composite, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s) and the graphene is selected from the group consisting of exfoliated graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Previously presented
The functionalized single-layer graphene-based thin film composite according to claim 1, wherein the plurality of water channels having an average diameter ranging from 0.001 to 100 nm. Original
Canceled
Canceled
Canceled
A graphene-based thin film composite membrane comprising: (a) a porous substrate; and (b) a functionalized single-layer graphene-based thin film composite comprising a first component functionalized with amine and acid [[and]] functional groups and a second component having at least a-COC I functional group that forms amide linkages with the first component to form a plurality of water channels within the thin film composite, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s) graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Currently amended
The graphene-based thin film composite membrane according to claim 7, wherein the plurality of water channels having an average diameter ranging from 0.001 nm to 100 nm. Original
The graphene-based thin film composite membrane according to claim 7, wherein the porous substrate is an ultrafiltration membrane or a microfiltration membrane fabricated from material selected from the group consisting of polysulfone, cellulose acetate, polyvinyl alcohol, polyvinyl chloride, polyvinylidene fluoride, cellulose nitrate, polyethersulphone and poly acrylonitrile. Original
The graphene-based thin film composite membrane according to claim 7, wherein the functionalized single-layer graphene-based thin film composite having a thickness ranging from 2 nm to 2,000 nm. Original
The graphene-based thin film composite membrane according to claim 7, wherein the graphene-based thin film composite membrane is a hollow fiber membrane. Previously presented
The graphene-based thin film composite membrane according to claim 7, wherein the graphene-based thin film composite membrane is a flat sheet membrane. Previously presented
Canceled
Canceled
Canceled
A method of producing a functionalized single-layer graphene-based thin film composite membrane, the method comprising: (i) pretreating the surface of a porous substrate membrane with a first component functionalized with amine and acid functional groups; (ii) drying the pretreated porous substrate membrane; and (ii) contacting the pretreated porous substrate membrane with a second component having at least a-COd functional group that forms amide linkages with the first component deposited onto the surface of the porous substrate to form a thin film composite layer having a plurality of water channels on the said porous substrate, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s), and the graphene is selected from the group consisting of exfoliated graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Previously presented
The method according to claim 15, further comprising: removing excess first and second components from the porous substrate membrane; and heat-curing the porous substrate membrane. Original
The method according to claim 15, wherein the step of contacting is carried out for 0.5 to 5 minutes. Original
The method according to claim 15, wherein the plurality of water channels having an average diameter ranging from 0.001 nm to 100 nm. Original
Canceled
Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
functionalized single-layer graphene-based thin film composite
graphene-based thin film composite membrane
Materials described outside the worked examples.
amine and acid functionalized graphene (first component)
acid chloride modified graphene (second component)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 15 shows a FTIR spectra of neat, functionalized graphene and the TFC layer.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
average water channel diameter (claim range) | 0.001–100 nm | amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
average water channel diameter preferred range (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,918,998Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows the growth of desalination market.
Figure 2 illustrates a thin film composite (TFC) membrane on support.
Figure 3 shows a typical thin film composite (TFC) reaction.
Figure 4 shows the performance analysis of graphene-based membranes over conventional membranes, in terms of permeability and selectivity.
Figure 5 is an image illustrating the functionalized graphene-based thin film composite membrane in accordance with an embodiment of the present invention.
Figure 6 is a schematic representation of the synthesis of the amine and acid functionalized graphene in accordance with an embodiment of the present invention.
Figure 7 shows the crosslinking mechanism and formation of graphene-based TFC using amine and acid functionalized graphene and trimesoyl chloride.
Figure 8 is a schematic representation of the water channels formed using amine and acid functionalized graphene and trimesoyl chloride. SUBSTITUTE SPECIFICATION-MARKED-UP COPY
Figure 9 shows the crosslinking mechanism and the formation of graphene-based TFC using amine and acid functionalized graphene and acid chloride functionalized graphene.
Figure 10 is a schematic representation of the water channels fo rm ed using amine and acid functionalized graphene and acid chloride functionalized graphene.
Figure 11 shows the crosslinking mechanism and fo rm ation of the graphene-based TFC using acid chloride functionalized graphene and meta phenylene diamine (MPD).
Figure 12 illustrates the water channels formed in accordance with an embodiment of the present invention.
Figure 13 shows a functionalized single-layer graphene-based TFC modified hollow fiber membrane.
Figure 14 shows a functionalized single-layer graphene-based TFC modified flat sheet membrane.
Figure 15 shows a FTIR spectra of neat, functionalized graphene and the TFC layer.
Figure 16 shows a Raman spectra of graphene, carboxylated graphene, amine functionalized graphene and the graphene-based TFC.
Figure 17 shows the 3D modeling a- 1, magnified 3D modelling a-2 and actual scanning electron microscopic (SEM) image of the graphene based TFC modified membrane surface b-1 and magnified SEM image b-2.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A functionalized single-layer graphene-based thin film composite comprising a first component functionalized with amine and acid functional groups and a second component having at least a-COCI functional group that forms amide linkages with the first component to form a plurality of water channels within the thin film composite, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s) and the graphene is selected from the group consisting of exfoliated graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Previously presented
The functionalized single-layer graphene-based thin film composite according to claim 1, wherein the plurality of water channels having an average diameter ranging from 0.001 to 100 nm. Original
Canceled
Canceled
Canceled
A graphene-based thin film composite membrane comprising: (a) a porous substrate; and (b) a functionalized single-layer graphene-based thin film composite comprising a first component functionalized with amine and acid [[and]] functional groups and a second component having at least a-COC I functional group that forms amide linkages with the first component to form a plurality of water channels within the thin film composite, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s) graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Currently amended
The graphene-based thin film composite membrane according to claim 7, wherein the plurality of water channels having an average diameter ranging from 0.001 nm to 100 nm. Original
The graphene-based thin film composite membrane according to claim 7, wherein the porous substrate is an ultrafiltration membrane or a microfiltration membrane fabricated from material selected from the group consisting of polysulfone, cellulose acetate, polyvinyl alcohol, polyvinyl chloride, polyvinylidene fluoride, cellulose nitrate, polyethersulphone and poly acrylonitrile. Original
The graphene-based thin film composite membrane according to claim 7, wherein the functionalized single-layer graphene-based thin film composite having a thickness ranging from 2 nm to 2,000 nm. Original
The graphene-based thin film composite membrane according to claim 7, wherein the graphene-based thin film composite membrane is a hollow fiber membrane. Previously presented
The graphene-based thin film composite membrane according to claim 7, wherein the graphene-based thin film composite membrane is a flat sheet membrane. Previously presented
Canceled
Canceled
Canceled
A method of producing a functionalized single-layer graphene-based thin film composite membrane, the method comprising: (i) pretreating the surface of a porous substrate membrane with a first component functionalized with amine and acid functional groups; (ii) drying the pretreated porous substrate membrane; and (ii) contacting the pretreated porous substrate membrane with a second component having at least a-COd functional group that forms amide linkages with the first component deposited onto the surface of the porous substrate to form a thin film composite layer having a plurality of water channels on the said porous substrate, wherein the first component and the second component are each a graphene, functionalized with the respective functional group(s), and the graphene is selected from the group consisting of exfoliated graphene nanoplatelets, pristine graphene, graphene nanosheets, functionalized graphene and chemically converted graphene; and wherein the second component is an acid chloride modified graphene. Previously presented
The method according to claim 15, further comprising: removing excess first and second components from the porous substrate membrane; and heat-curing the porous substrate membrane. Original
The method according to claim 15, wherein the step of contacting is carried out for 0.5 to 5 minutes. Original
The method according to claim 15, wherein the plurality of water channels having an average diameter ranging from 0.001 nm to 100 nm. Original
Canceled
Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
functionalized single-layer graphene-based thin film composite
graphene-based thin film composite membrane
Materials described outside the worked examples.
amine and acid functionalized graphene (first component)
acid chloride modified graphene (second component)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 15 shows a FTIR spectra of neat, functionalized graphene and the TFC layer.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
average water channel diameter (claim range) | 0.001–100 nm | amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
average water channel diameter preferred range (claim range) |
Related documents with shared materials, methods, properties, or citations.
porous substrate
porous substrate material
graphene oxide (GO)
meta phenylene diamine (MPD)
trimesoyl chloride (TMC)
Figure 16 shows a Raman spectra of graphene, carboxylated graphene, amine functionalized graphene and the graphene-based TFC.
Figure 17 shows the 3D modeling a- 1, magnified 3D modelling a-2 and actual scanning electron microscopic (SEM) image of the graphene based TFC modified membrane surface b-1 and magnified SEM image b-2.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
| 0.01–20 nm |
amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
functionalized single-layer graphene-based thin film composite thickness (claim range) | 2–2000 nm | amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
Duration | 30–300 s | — |
Thickness | 2–10 nm | — |
Duration | 0.5–5 minutes | — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 2 nm | — |
porous substrate
porous substrate material
graphene oxide (GO)
meta phenylene diamine (MPD)
trimesoyl chloride (TMC)
Figure 16 shows a Raman spectra of graphene, carboxylated graphene, amine functionalized graphene and the graphene-based TFC.
Figure 17 shows the 3D modeling a- 1, magnified 3D modelling a-2 and actual scanning electron microscopic (SEM) image of the graphene based TFC modified membrane surface b-1 and magnified SEM image b-2.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
| 0.01–20 nm |
amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
functionalized single-layer graphene-based thin film composite thickness (claim range) | 2–2000 nm | amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
Duration | 30–300 s | — |
Thickness | 2–10 nm | — |
Duration | 0.5–5 minutes | — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 2 nm | — |
porous substrate
porous substrate material
graphene oxide (GO)
meta phenylene diamine (MPD)
trimesoyl chloride (TMC)
Figure 16 shows a Raman spectra of graphene, carboxylated graphene, amine functionalized graphene and the graphene-based TFC.
Figure 17 shows the 3D modeling a- 1, magnified 3D modelling a-2 and actual scanning electron microscopic (SEM) image of the graphene based TFC modified membrane surface b-1 and magnified SEM image b-2.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
| 0.01–20 nm |
amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
functionalized single-layer graphene-based thin film composite thickness (claim range) | 2–2000 nm | amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
Duration | 30–300 s | — |
Thickness | 2–10 nm | — |
Duration | 0.5–5 minutes | — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 2 nm | — |
porous substrate
porous substrate material
graphene oxide (GO)
meta phenylene diamine (MPD)
trimesoyl chloride (TMC)
Figure 16 shows a Raman spectra of graphene, carboxylated graphene, amine functionalized graphene and the graphene-based TFC.
Figure 17 shows the 3D modeling a- 1, magnified 3D modelling a-2 and actual scanning electron microscopic (SEM) image of the graphene based TFC modified membrane surface b-1 and magnified SEM image b-2.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
Figure 18 shows the cross-section SEM image of the membrane, showing the graphene-based TFC layer thickness of a) 226 nm; b) 588 nm; and c) 1.14 microns.
| 0.01–20 nm |
amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
functionalized single-layer graphene-based thin film composite thickness (claim range) | 2–2000 nm | amine and acid functionalized graphene (first component)acid chloride modified graphene (second component) |
Duration | 30–300 s | — |
Thickness | 2–10 nm | — |
Duration | 0.5–5 minutes | — |
Thickness | ≤ 20 nm | — |
Thickness | ≤ 2 nm | — |