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US 2021/0187445 A1Published application
Reverse osmosis membrane and method for producing reverse osmosis membrane
AssigneesKitagawa Industries Co., Ltd., Shinshu University
InventorsHiroki KITANO, Akio YAMAGUCHI, Morinobu ENDO, Josue ORTIZ MEDINA
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Abstract
A reverse osmosis membrane of the present invention includes a porous support substrate (2) and a separation active layer (3) formed on a surface of the porous support substrate (2) and formed of a carbon film containing organized carbon.
Claims6
1-4. (canceled)
A reverse osmosis membrane comprising:
- a porous support substrate;
- and
- a separation active layer formed on a surface of the porous support substrate and formed of a carbon film containing organized carbon.
A method for producing a reverse osmosis membrane, the method comprising:
- a coating film forming step of forming a coating film soluble in a predetermined solvent on a surface of a porous support substrate insoluble in the solvent;
- a pre-carbon film forming step of forming a pre-carbon film on the coating film by a physical vapor deposition method using carbon as a target material;
- a coating film removal step of dissolving and removing the coating film with the solvent after the carbon film is formed;
- and
- an organization step of compressing the pre-carbon film to form a separation active layer formed of a carbon film containing organized carbon.
2 more elements
Dependencies are inferred from the claim text.