Carbon nanotube composite membrane

摘要

A composite membrane for separations includes a fabric with a non-woven array of intermingled carbon nanotubes, and a dopant incorporated with the fabric to form a non-porous, permeable composite. The composite membrane may be used to separate a target gas from a liquid by mounting the composite membrane in a housing chamber, and conditioning a permeate side of the chamber to establish a driving force for the target gas across the non-porous, permeable composite membrane.

主权项

1. A method for preparing a composite gas separation membrane for separating a gas-liquid mixture, said method comprising:
providing a fabric comprising a non-woven array of intermingled carbon nanotubes, wherein said non-woven array defines interstices between said intermingled carbon nanotubes; providing a dopant in a liquid medium to form a dopant composition; at least partially immersing said fabric in said dopant composition; and sonicating said dopant composition with an ultrasonic transducer such that said dopant composition penetrates said fabric interstices to an extent sufficient to establish a nonporous but permeable composite structure with said fabric.