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1. (WO2018144847) MEMBRANES COMPOSITES COMPRENANT DES NANOPARTICULES POUR FILTRATION DE LIQUIDE
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

CLAIMS

What is claimed is:

1. A filter membrane, comprising:

carbon nanotubes; and

carbon nitride nanoparticles;

wherein inter-particle atomic interactions between the carbon nanotubes and the carbon nitride nanoparticles bind the carbon nanotubes and the carbon nitride nanoparticles together.

2. The filter membrane of claim 1, wherein the carbon nitride nanoparticles comprise CNx nanoparticles, wherein x is between 0.05 and 1.33, and wherein the carbon nitride nanoparticles comprise triazine rings.

3. The filter membrane of claim 2, wherein the triazine rings comprise 1,3,5-triazine rings.

4. The filter membrane of claim 3, wherein the inter-particle atomic interactions comprise pi-pi stacking interactions between aromatic rings in the carbon nanotubes and the carbon nitride nanoparticles.

5. The filter membrane of any one of claims 1-4, wherein the carbon nanotubes constitute between about 10% and about 90% by weight of the filter membrane.

6. The filter membrane of any one of claims 1-4, wherein the carbon nitride nanoparticles constitute between about 1% and about 90% by weight of the filter membrane.

7. The filter membrane of any one of claims 1-4, wherein the filter membrane consists essentially of the carbon nanotubes and the carbon nitride nanoparticles.

8. The filter membrane of any one of claims 1-4, wherein the filter membrane has a thickness of between about one micron (1 μιτι) and about fifty microns (50 μιτι).

9. The filter membrane of any one of claims 1-4, wherein the carbon nanotubes are cross-linked with one another.

10. The filter membrane of claim 1 or claim 2, wherein the inter-particle atomic interactions comprise pi-pi stacking interactions between aromatic rings in the carbon nanotubes and the carbon nitride nanoparticles.

11. The filter membrane of any one of claims 1-4, wherein the filter membrane is flexible.

12. A filter cartridge, comprising:

an outer housing;

a fluid inlet leading into the outer housing;

a fluid outlet leading out from the outer housing; and

a filter membrane as recited in any one of claims 1-4 disposed between the fluid inlet and the fluid outlet and located such that fluid passing through the outer housing between the fluid inlet and the fluid outlet passes through the filter membrane.

13. The filter cartridge of claim 12, further comprising a porous or perforated tubular member disposed within the outer housing, and wherein the filter membrane is wrapped around the tubular member, one of the fluid inlet and the fluid outlet leads to a space within the outer housing outside the tubular member, and the other of the fluid inlet and the fluid outlet leads to a space within the tubular member.

14. A method of making a filter membrane as recited in any one of claims 1-4, comprising:

dispersing carbon nanotubes and carbon nitride nanoparticles in a liquid to form a suspension; passing the suspension through a filter so as to deposit the carbon nanotubes and the carbon nitride nanoparticles on the filter and form the filter membrane on the filter.

15. The method of claim 14, further comprising filtering a liquid by passing the liquid through the filter membrane.