▎ 摘　　要

NOVELTY - A dehydration membrane (100) comprises a porous support (120); and a composite (110) coated on porous support comprising crosslinked graphene oxide compound that is formed by reacting mixture comprising graphene oxide compound and crosslinker comprising polycarboxylic acid. The graphene oxide compound is suspended within the crosslinker and the weight ratio of graphene oxide to crosslinker is greater than or equal to 0.01. USE - The dehydration membrane is used for removing water or water vapor from air or other gas streams in energy recovery ventilator. ADVANTAGE - The dehydration membrane provides selective resistance for gasses while providing water vapor permeability. It has a higher permeability for water vapor than a gas. The membrane has a water vapor permeability of at least 2-fold, preferably at least 3-fold higher than the permeability for gas. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for dehydrating a gas comprising applying a first gas component comprising water vapor to dehydration membrane, and allowing the water vapor to pass through the dehydration membrane and to be removed; and generating a second gas component that has lower water vapor content than the first gas component; and (2) a method of making a dehydration membrane comprising curing an aqueous mixture that is coated onto porous support, where the aqueous mixture is cured at 90-150 degrees C for 30 seconds to 3 hours to facilitate crosslinking within the aqueous mixture, where the porous support is coated with the aqueous mixture by applying the aqueous mixture to the porous support, and repeating as necessary to achieve a layer of coating having a thickness of 100-4000 nm; and where the aqueous mixture is formed by mixing a graphene oxide compound, a crosslinker comprising a polycarboxylic acid, and an additive mixture, in an aqueous liquid. DESCRIPTION OF DRAWING(S) - The drawing is a schematic view of the dehydration membrane. Dehydration membrane (100) Composite (110) Porous support (120)