▎ 摘　　要

NOVELTY - A nano-silver/graphene/polyvinyl alcohol mixed matrix membrane preparing method involves choosing polyethylene alcohol, dispersing ultrasonic graphene oxide in water to obtain solution A, dissolving the polyethylene alcohol and silver nitrate in the water to obtain solution B, mixing the solution A with the solution B to obtain nano-silver/graphene/polyvinyl alcohol mixture liquid, defoaming the nano-silver/graphene/polyvinyl alcohol mixture liquid to obtain casting membrane liquid and coating the casting membrane liquid to obtain a nano-silver/graphene/polyvinyl alcohol mixed matrix membrane. USE - Method for preparing a nano-silver/graphene/polyvinyl alcohol mixed matrix membrane. ADVANTAGE - The method enables preparing a nano-silver/graphene/polyvinyl alcohol mixed matrix membrane with improved permeation vaporization performance.