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Figure 1 shows drilling of M o S 2 NSs by ambient ions. Schematic representation of chemical drilling of M oS 2 NSs using electrospray deposited Ag + ions.
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Figure 3 shows characterization of holey M o S 2 NSs. (a) STEM image of the as-synthesized Mo S 2 NSs showing no defects in it. (b) HRTEM image of a M o S 2 NS, floating on water after the deposition process, with holes. (c) STEM image of the same showing clear holes on a single NS. (d) HAADF STEM …
Figure 4 shows anti-bacterial performance of holey M o S 2 NSs. The antibacterial activity of the porous M o S 2 NSs, with Mo-rich edges is compared with bulk M o S 2, bulk M o S 2 with the same amount of Ag used for drilling, M o S 2 NSs without holes and holey M o S 2 NSs in dark. In all the …
Figure 5 shows the comparison of the antiviral activity of the porous M o S 2 NSs, with Mo-rich edges. The activity is compared with bulk M o S 2 and M o S 2 NSs without holes. The test organisms used was F-specific bacteriophage MS₂ grown on E. coli (ATCC 15597- B 1). In all the experiments, …
Figure 6 shows antibacterial performance of holey M o S 2. (a-c) Photograph of the antibacterial activity (with Bacillus subtilis bacteria) of M o S 2 NSs shown in (b) and with holey M o S 2 shown in (c). (a) Input bacterial concentration and (d) comparison of antibacterial activity of M o S 2 NSs …
Figure 7 shows quantitative detection of H 2 0 2 using CV. Cyclic voltammetry (CV) traces of 5 mL of M o S 2 solution, in phosphate buffered saline (PBS), using a gold electrode. Inset shows
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making nanoscale holes in two dimensional M oS 2 nanosheets, the method comprising: electrospraying deposition of reactive Ag + ions onto the two dimensional M o S 2 nanosheet, wherein the Ag + ions react with the M o S 2 nanosheet forming Ag 2 S and a defect-rich M oS 2 nanosheet; generating H 2 0 2 under visible light using the nanoscale holes in the M o S 2 nanosheet; and exposing contaminated water to the H 2 0 2 for disinfection. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the Ag + ions are selected from various salts of Ag comprising silver acetate, silver nitrate, and silver perchlorate. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoscale holes have dimensions below 20 nm. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the reaction between electrosprayed AG+ ions and M oS 2 nanosheets makes nanoporous M o S 2 nanosheets with Mo-rich edges. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, further comprising metal ions including monovalent ions Ag +, Cu +, and divalent ions, Hg 2 +, Cu 2 +, Zn 2 +, Ni z+. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, the two dimensional materials comprising M o S2, MoSe2, WS2, WSe2. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the two dimensional nanosheets are supported on substrates including water, ITO-coated glass, copper, silicon using an adsorption process. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the chemical reaction of M o S 2 nanosheets with the metal ions is photocatalytically more active which increases the generation of reactive oxygen species and disinfection efficiency. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoporous M o S 2 nanosheets supported on silica or alumina are used as a device for filtration. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoporous MoS₂ nanosheets act as a membrane for desalination of water. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, further comprising using molecular ions to extract sulphur. Previously presented
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Chemical exfoliation of MoS₂ powder using n-butyllithium intercalation. 300 mg MoS₂ powder was treated with 3 mL of 1.6 M n-butyllithium under argon atmosphere with stirring for 2 days, washed with hexane, dispersed in 80 mL distilled water, sonicated for 1 h, and centrifuged at 10000 rpm to remove bulk unexfoliated MoS2. Quality checked by electron microscopy, UV-Vis, and Raman spectroscopy. Concentration determined by ICP-MS.
4 materials1 process step
A home-built nanoelectrospray ionization (nESI) source was used. Borosilicate glass capillary tips with 10-15 µm opening were used. 10 mM aqueous AgOAc solution was filled in the nESI tips. Applied potential of 2-2.5 kV to generate a spray plume of solvated Ag+ ions directed toward a grounded aqueous suspension of MoS₂ NSs (3.7 mM in Mo). Ag ions react with NSs to form Ag₂S NPs, which go into water leaving nanoporous MoS₂ NSs. Deposition current varied from 20-100 nA. Typical experiment: 30 min deposition at optimized rate.
Layer stacks claimed or described, ordered top of device to substrate.
nanoporous MoS₂ filtration device
nanoporous MoS₂ desalination membrane
water disinfection prototype with holey MoS₂ and LED
Materials described outside the worked examples.
silver nitrate
AgNO₃
silver perchlorate
AgClO₄
Measurements and analyses referenced in the patent, with their drawing references.
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nanoscale hole diameter in holey MoS2 nanosheets | 3–5 nm | MoS₂ |
disinfection efficiency of holey MoS2 vs normal MoS2 NSs |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows drilling of M o S 2 NSs by ambient ions. Schematic representation of chemical drilling of M oS 2 NSs using electrospray deposited Ag + ions.
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Figure 3 shows characterization of holey M o S 2 NSs. (a) STEM image of the as-synthesized Mo S 2 NSs showing no defects in it. (b) HRTEM image of a M o S 2 NS, floating on water after the deposition process, with holes. (c) STEM image of the same showing clear holes on a single NS. (d) HAADF STEM …
Figure 4 shows anti-bacterial performance of holey M o S 2 NSs. The antibacterial activity of the porous M o S 2 NSs, with Mo-rich edges is compared with bulk M o S 2, bulk M o S 2 with the same amount of Ag used for drilling, M o S 2 NSs without holes and holey M o S 2 NSs in dark. In all the …
Figure 5 shows the comparison of the antiviral activity of the porous M o S 2 NSs, with Mo-rich edges. The activity is compared with bulk M o S 2 and M o S 2 NSs without holes. The test organisms used was F-specific bacteriophage MS₂ grown on E. coli (ATCC 15597- B 1). In all the experiments, …
Figure 6 shows antibacterial performance of holey M o S 2. (a-c) Photograph of the antibacterial activity (with Bacillus subtilis bacteria) of M o S 2 NSs shown in (b) and with holey M o S 2 shown in (c). (a) Input bacterial concentration and (d) comparison of antibacterial activity of M o S 2 NSs …
Figure 7 shows quantitative detection of H 2 0 2 using CV. Cyclic voltammetry (CV) traces of 5 mL of M o S 2 solution, in phosphate buffered saline (PBS), using a gold electrode. Inset shows
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making nanoscale holes in two dimensional M oS 2 nanosheets, the method comprising: electrospraying deposition of reactive Ag + ions onto the two dimensional M o S 2 nanosheet, wherein the Ag + ions react with the M o S 2 nanosheet forming Ag 2 S and a defect-rich M oS 2 nanosheet; generating H 2 0 2 under visible light using the nanoscale holes in the M o S 2 nanosheet; and exposing contaminated water to the H 2 0 2 for disinfection. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the Ag + ions are selected from various salts of Ag comprising silver acetate, silver nitrate, and silver perchlorate. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoscale holes have dimensions below 20 nm. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the reaction between electrosprayed AG+ ions and M oS 2 nanosheets makes nanoporous M o S 2 nanosheets with Mo-rich edges. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, further comprising metal ions including monovalent ions Ag +, Cu +, and divalent ions, Hg 2 +, Cu 2 +, Zn 2 +, Ni z+. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, the two dimensional materials comprising M o S2, MoSe2, WS2, WSe2. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the two dimensional nanosheets are supported on substrates including water, ITO-coated glass, copper, silicon using an adsorption process. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the chemical reaction of M o S 2 nanosheets with the metal ions is photocatalytically more active which increases the generation of reactive oxygen species and disinfection efficiency. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoporous M o S 2 nanosheets supported on silica or alumina are used as a device for filtration. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoporous MoS₂ nanosheets act as a membrane for desalination of water. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, further comprising using molecular ions to extract sulphur. Previously presented
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Chemical exfoliation of MoS₂ powder using n-butyllithium intercalation. 300 mg MoS₂ powder was treated with 3 mL of 1.6 M n-butyllithium under argon atmosphere with stirring for 2 days, washed with hexane, dispersed in 80 mL distilled water, sonicated for 1 h, and centrifuged at 10000 rpm to remove bulk unexfoliated MoS2. Quality checked by electron microscopy, UV-Vis, and Raman spectroscopy. Concentration determined by ICP-MS.
4 materials1 process step
A home-built nanoelectrospray ionization (nESI) source was used. Borosilicate glass capillary tips with 10-15 µm opening were used. 10 mM aqueous AgOAc solution was filled in the nESI tips. Applied potential of 2-2.5 kV to generate a spray plume of solvated Ag+ ions directed toward a grounded aqueous suspension of MoS₂ NSs (3.7 mM in Mo). Ag ions react with NSs to form Ag₂S NPs, which go into water leaving nanoporous MoS₂ NSs. Deposition current varied from 20-100 nA. Typical experiment: 30 min deposition at optimized rate.
Layer stacks claimed or described, ordered top of device to substrate.
nanoporous MoS₂ filtration device
nanoporous MoS₂ desalination membrane
water disinfection prototype with holey MoS₂ and LED
Materials described outside the worked examples.
silver nitrate
AgNO₃
silver perchlorate
AgClO₄
Measurements and analyses referenced in the patent, with their drawing references.
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nanoscale hole diameter in holey MoS2 nanosheets | 3–5 nm | MoS₂ |
disinfection efficiency of holey MoS2 vs normal MoS2 NSs |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows drilling of M o S 2 NSs by ambient ions. Schematic representation of chemical drilling of M oS 2 NSs using electrospray deposited Ag + ions.
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Figure 3 shows characterization of holey M o S 2 NSs. (a) STEM image of the as-synthesized Mo S 2 NSs showing no defects in it. (b) HRTEM image of a M o S 2 NS, floating on water after the deposition process, with holes. (c) STEM image of the same showing clear holes on a single NS. (d) HAADF STEM …
Figure 4 shows anti-bacterial performance of holey M o S 2 NSs. The antibacterial activity of the porous M o S 2 NSs, with Mo-rich edges is compared with bulk M o S 2, bulk M o S 2 with the same amount of Ag used for drilling, M o S 2 NSs without holes and holey M o S 2 NSs in dark. In all the …
Figure 5 shows the comparison of the antiviral activity of the porous M o S 2 NSs, with Mo-rich edges. The activity is compared with bulk M o S 2 and M o S 2 NSs without holes. The test organisms used was F-specific bacteriophage MS₂ grown on E. coli (ATCC 15597- B 1). In all the experiments, …
Figure 6 shows antibacterial performance of holey M o S 2. (a-c) Photograph of the antibacterial activity (with Bacillus subtilis bacteria) of M o S 2 NSs shown in (b) and with holey M o S 2 shown in (c). (a) Input bacterial concentration and (d) comparison of antibacterial activity of M o S 2 NSs …
Figure 7 shows quantitative detection of H 2 0 2 using CV. Cyclic voltammetry (CV) traces of 5 mL of M o S 2 solution, in phosphate buffered saline (PBS), using a gold electrode. Inset shows
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making nanoscale holes in two dimensional M oS 2 nanosheets, the method comprising: electrospraying deposition of reactive Ag + ions onto the two dimensional M o S 2 nanosheet, wherein the Ag + ions react with the M o S 2 nanosheet forming Ag 2 S and a defect-rich M oS 2 nanosheet; generating H 2 0 2 under visible light using the nanoscale holes in the M o S 2 nanosheet; and exposing contaminated water to the H 2 0 2 for disinfection. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the Ag + ions are selected from various salts of Ag comprising silver acetate, silver nitrate, and silver perchlorate. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoscale holes have dimensions below 20 nm. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the reaction between electrosprayed AG+ ions and M oS 2 nanosheets makes nanoporous M o S 2 nanosheets with Mo-rich edges. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, further comprising metal ions including monovalent ions Ag +, Cu +, and divalent ions, Hg 2 +, Cu 2 +, Zn 2 +, Ni z+. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, the two dimensional materials comprising M o S2, MoSe2, WS2, WSe2. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the two dimensional nanosheets are supported on substrates including water, ITO-coated glass, copper, silicon using an adsorption process. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the chemical reaction of M o S 2 nanosheets with the metal ions is photocatalytically more active which increases the generation of reactive oxygen species and disinfection efficiency. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoporous M o S 2 nanosheets supported on silica or alumina are used as a device for filtration. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoporous MoS₂ nanosheets act as a membrane for desalination of water. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, further comprising using molecular ions to extract sulphur. Previously presented
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Chemical exfoliation of MoS₂ powder using n-butyllithium intercalation. 300 mg MoS₂ powder was treated with 3 mL of 1.6 M n-butyllithium under argon atmosphere with stirring for 2 days, washed with hexane, dispersed in 80 mL distilled water, sonicated for 1 h, and centrifuged at 10000 rpm to remove bulk unexfoliated MoS2. Quality checked by electron microscopy, UV-Vis, and Raman spectroscopy. Concentration determined by ICP-MS.
4 materials1 process step
A home-built nanoelectrospray ionization (nESI) source was used. Borosilicate glass capillary tips with 10-15 µm opening were used. 10 mM aqueous AgOAc solution was filled in the nESI tips. Applied potential of 2-2.5 kV to generate a spray plume of solvated Ag+ ions directed toward a grounded aqueous suspension of MoS₂ NSs (3.7 mM in Mo). Ag ions react with NSs to form Ag₂S NPs, which go into water leaving nanoporous MoS₂ NSs. Deposition current varied from 20-100 nA. Typical experiment: 30 min deposition at optimized rate.
Layer stacks claimed or described, ordered top of device to substrate.
nanoporous MoS₂ filtration device
nanoporous MoS₂ desalination membrane
water disinfection prototype with holey MoS₂ and LED
Materials described outside the worked examples.
silver nitrate
AgNO₃
silver perchlorate
AgClO₄
Measurements and analyses referenced in the patent, with their drawing references.
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nanoscale hole diameter in holey MoS2 nanosheets | 3–5 nm | MoS₂ |
disinfection efficiency of holey MoS2 vs normal MoS2 NSs |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows drilling of M o S 2 NSs by ambient ions. Schematic representation of chemical drilling of M oS 2 NSs using electrospray deposited Ag + ions.
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Figure 3 shows characterization of holey M o S 2 NSs. (a) STEM image of the as-synthesized Mo S 2 NSs showing no defects in it. (b) HRTEM image of a M o S 2 NS, floating on water after the deposition process, with holes. (c) STEM image of the same showing clear holes on a single NS. (d) HAADF STEM …
Figure 4 shows anti-bacterial performance of holey M o S 2 NSs. The antibacterial activity of the porous M o S 2 NSs, with Mo-rich edges is compared with bulk M o S 2, bulk M o S 2 with the same amount of Ag used for drilling, M o S 2 NSs without holes and holey M o S 2 NSs in dark. In all the …
Figure 5 shows the comparison of the antiviral activity of the porous M o S 2 NSs, with Mo-rich edges. The activity is compared with bulk M o S 2 and M o S 2 NSs without holes. The test organisms used was F-specific bacteriophage MS₂ grown on E. coli (ATCC 15597- B 1). In all the experiments, …
Figure 6 shows antibacterial performance of holey M o S 2. (a-c) Photograph of the antibacterial activity (with Bacillus subtilis bacteria) of M o S 2 NSs shown in (b) and with holey M o S 2 shown in (c). (a) Input bacterial concentration and (d) comparison of antibacterial activity of M o S 2 NSs …
Figure 7 shows quantitative detection of H 2 0 2 using CV. Cyclic voltammetry (CV) traces of 5 mL of M o S 2 solution, in phosphate buffered saline (PBS), using a gold electrode. Inset shows
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of making nanoscale holes in two dimensional M oS 2 nanosheets, the method comprising: electrospraying deposition of reactive Ag + ions onto the two dimensional M o S 2 nanosheet, wherein the Ag + ions react with the M o S 2 nanosheet forming Ag 2 S and a defect-rich M oS 2 nanosheet; generating H 2 0 2 under visible light using the nanoscale holes in the M o S 2 nanosheet; and exposing contaminated water to the H 2 0 2 for disinfection. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the Ag + ions are selected from various salts of Ag comprising silver acetate, silver nitrate, and silver perchlorate. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoscale holes have dimensions below 20 nm. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the reaction between electrosprayed AG+ ions and M oS 2 nanosheets makes nanoporous M o S 2 nanosheets with Mo-rich edges. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, further comprising metal ions including monovalent ions Ag +, Cu +, and divalent ions, Hg 2 +, Cu 2 +, Zn 2 +, Ni z+. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, the two dimensional materials comprising M o S2, MoSe2, WS2, WSe2. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the two dimensional nanosheets are supported on substrates including water, ITO-coated glass, copper, silicon using an adsorption process. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the chemical reaction of M o S 2 nanosheets with the metal ions is photocatalytically more active which increases the generation of reactive oxygen species and disinfection efficiency. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoporous M o S 2 nanosheets supported on silica or alumina are used as a device for filtration. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, wherein the nanoporous MoS₂ nanosheets act as a membrane for desalination of water. Previously presented
The method of making nanoscale holes in two dimensional M oS 2 nanosheets as claimed in claim 1, further comprising using molecular ions to extract sulphur. Previously presented
Canceled
Embodiments described in the patent, grouped by the materials and process steps they use.
2 materials1 process step
Chemical exfoliation of MoS₂ powder using n-butyllithium intercalation. 300 mg MoS₂ powder was treated with 3 mL of 1.6 M n-butyllithium under argon atmosphere with stirring for 2 days, washed with hexane, dispersed in 80 mL distilled water, sonicated for 1 h, and centrifuged at 10000 rpm to remove bulk unexfoliated MoS2. Quality checked by electron microscopy, UV-Vis, and Raman spectroscopy. Concentration determined by ICP-MS.
4 materials1 process step
A home-built nanoelectrospray ionization (nESI) source was used. Borosilicate glass capillary tips with 10-15 µm opening were used. 10 mM aqueous AgOAc solution was filled in the nESI tips. Applied potential of 2-2.5 kV to generate a spray plume of solvated Ag+ ions directed toward a grounded aqueous suspension of MoS₂ NSs (3.7 mM in Mo). Ag ions react with NSs to form Ag₂S NPs, which go into water leaving nanoporous MoS₂ NSs. Deposition current varied from 20-100 nA. Typical experiment: 30 min deposition at optimized rate.
Layer stacks claimed or described, ordered top of device to substrate.
nanoporous MoS₂ filtration device
nanoporous MoS₂ desalination membrane
water disinfection prototype with holey MoS₂ and LED
Materials described outside the worked examples.
silver nitrate
AgNO₃
silver perchlorate
AgClO₄
Measurements and analyses referenced in the patent, with their drawing references.
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nanoscale hole diameter in holey MoS2 nanosheets | 3–5 nm | MoS₂ |
disinfection efficiency of holey MoS2 vs normal MoS2 NSs |
Related documents with shared materials, methods, properties, or citations.
MoSe₂
WS₂
WSe₂
n-butyllithium in hexane
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Figure 3 shows characterization of holey M o S 2 NSs. (a) STEM image of the as-synthesized Mo S 2 NSs showing no defects in it. (b) HRTEM image of a M o S 2 NS, floating on water after the deposition process, with holes. (c) STEM image of the same showing clear holes on a single NS. (d) HAADF STEM …
Figure 4 shows anti-bacterial performance of holey M o S 2 NSs. The antibacterial activity of the porous M o S 2 NSs, with Mo-rich edges is compared with bulk M o S 2, bulk M o S 2 with the same amount of Ag used for drilling, M o S 2 NSs without holes and holey M o S 2 NSs in dark. In all the …
Figure 6 shows antibacterial performance of holey M o S 2. (a-c) Photograph of the antibacterial activity (with Bacillus subtilis bacteria) of M o S 2 NSs shown in (b) and with holey M o S 2 shown in (c). (a) Input bacterial concentration and (d) comparison of antibacterial activity of M o S 2 NSs …
| 10⁵ times higher |
MoS₂ |
Raman E2g peak position of MoS2 NSs | 387 cm⁻¹ | MoS₂ |
Raman A1g peak position of MoS2 NSs | 409 cm⁻¹ | MoS₂ |
Thickness | 3–5 nm | — |
Thickness | ≤ 20 nm | — |
MoSe₂
WS₂
WSe₂
n-butyllithium in hexane
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Figure 3 shows characterization of holey M o S 2 NSs. (a) STEM image of the as-synthesized Mo S 2 NSs showing no defects in it. (b) HRTEM image of a M o S 2 NS, floating on water after the deposition process, with holes. (c) STEM image of the same showing clear holes on a single NS. (d) HAADF STEM …
Figure 4 shows anti-bacterial performance of holey M o S 2 NSs. The antibacterial activity of the porous M o S 2 NSs, with Mo-rich edges is compared with bulk M o S 2, bulk M o S 2 with the same amount of Ag used for drilling, M o S 2 NSs without holes and holey M o S 2 NSs in dark. In all the …
Figure 6 shows antibacterial performance of holey M o S 2. (a-c) Photograph of the antibacterial activity (with Bacillus subtilis bacteria) of M o S 2 NSs shown in (b) and with holey M o S 2 shown in (c). (a) Input bacterial concentration and (d) comparison of antibacterial activity of M o S 2 NSs …
| 10⁵ times higher |
MoS₂ |
Raman E2g peak position of MoS2 NSs | 387 cm⁻¹ | MoS₂ |
Raman A1g peak position of MoS2 NSs | 409 cm⁻¹ | MoS₂ |
Thickness | 3–5 nm | — |
Thickness | ≤ 20 nm | — |
MoSe₂
WS₂
WSe₂
n-butyllithium in hexane
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Figure 3 shows characterization of holey M o S 2 NSs. (a) STEM image of the as-synthesized Mo S 2 NSs showing no defects in it. (b) HRTEM image of a M o S 2 NS, floating on water after the deposition process, with holes. (c) STEM image of the same showing clear holes on a single NS. (d) HAADF STEM …
Figure 4 shows anti-bacterial performance of holey M o S 2 NSs. The antibacterial activity of the porous M o S 2 NSs, with Mo-rich edges is compared with bulk M o S 2, bulk M o S 2 with the same amount of Ag used for drilling, M o S 2 NSs without holes and holey M o S 2 NSs in dark. In all the …
Figure 6 shows antibacterial performance of holey M o S 2. (a-c) Photograph of the antibacterial activity (with Bacillus subtilis bacteria) of M o S 2 NSs shown in (b) and with holey M o S 2 shown in (c). (a) Input bacterial concentration and (d) comparison of antibacterial activity of M o S 2 NSs …
| 10⁵ times higher |
MoS₂ |
Raman E2g peak position of MoS2 NSs | 387 cm⁻¹ | MoS₂ |
Raman A1g peak position of MoS2 NSs | 409 cm⁻¹ | MoS₂ |
Thickness | 3–5 nm | — |
Thickness | ≤ 20 nm | — |
MoSe₂
WS₂
WSe₂
n-butyllithium in hexane
Figure 2 shows characterization of M o S 2 NSs. (a) TEM image of as-synthesized M oS 2 nanosheet. (b) HAADF TEM image of (a) M o S 2 nanosheet showing that there are no defects in it. (c) Raman spectrum collected from the M o S 2 nanosheet and bulk M o S 2. The peak difference (~1 8 cm-) of E 2 g …
Figure 3 shows characterization of holey M o S 2 NSs. (a) STEM image of the as-synthesized Mo S 2 NSs showing no defects in it. (b) HRTEM image of a M o S 2 NS, floating on water after the deposition process, with holes. (c) STEM image of the same showing clear holes on a single NS. (d) HAADF STEM …
Figure 4 shows anti-bacterial performance of holey M o S 2 NSs. The antibacterial activity of the porous M o S 2 NSs, with Mo-rich edges is compared with bulk M o S 2, bulk M o S 2 with the same amount of Ag used for drilling, M o S 2 NSs without holes and holey M o S 2 NSs in dark. In all the …
Figure 6 shows antibacterial performance of holey M o S 2. (a-c) Photograph of the antibacterial activity (with Bacillus subtilis bacteria) of M o S 2 NSs shown in (b) and with holey M o S 2 shown in (c). (a) Input bacterial concentration and (d) comparison of antibacterial activity of M o S 2 NSs …
| 10⁵ times higher |
MoS₂ |
Raman E2g peak position of MoS2 NSs | 387 cm⁻¹ | MoS₂ |
Raman A1g peak position of MoS2 NSs | 409 cm⁻¹ | MoS₂ |
Thickness | 3–5 nm | — |
Thickness | ≤ 20 nm | — |