GAS SEPARATION MEMBRANE, GAS SEPARATION MATERIAL, AND GAS SEPARATION MEMBRANE MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a gas separation membrane having defects reduced, a gas separation material, and a manufacturing method for manufacturing a gas separation membrane reduced in defect.SOLUTION: The invention comprises a porous film 9 including an inorganic porous part 3 and an oxide precipitate 7 containing a metal oxide oxidized from a deposit containing a metal held in the inner walls of the hole of the inorganic porous part, as a simple substance. Further comprised is a gas separation body 11 arranged in a mode to clog the pores 5 of the porous film. It is preferred that the oxide precipitate 7 containing the metal oxide contains the oxide particles prepared by oxidizing the metal fine particles held on the inner wall faces of the pores of the porous part. The gas separation membrane of the invention has a low defect and is excellent in the function of the gas separation film.SELECTED DRAWING: Figure 1