▎ 摘　　要

NOVELTY - The method involves dividing a salt solution in a container into two chambers by a dielectric film containing a pore canal. Electrodes immersed in the chambers salt solution are connected to an anode and a cathode of a power supply to form a closed loop. External voltage is applied to generate net ion charge in a pore channel of a dielectric film. Electro-osmosis flow is generated along cation motion direction when the selected dielectrics film containing pore is cation-selective. The generated electro-osmosis flow is consistent with anion movement direction to realize electro-osmosis flow transport based on ion selectivity, where the dielectric film containing pore channels comprises one of a porous medium material film and a film containing micro-channels. USE - Electro-osmotic transport method based on ion selectivity. ADVANTAGE - The method does not need electro-osmosis dependent tube wall charge and a double-electric layer structure, so that the electro-osmosis device can achieve easy miniaturization and accurate control. DETAILED DESCRIPTION - The dielectric thin film with pores comprises one of phospholipid membranes embedded in carbon nanotubes, phospholipid membranes embedded in boron nitride nanotubes, carbon nanotube/boron nitride nanotube arrays, perforated silicon nitride, silicon oxide solid-state membranes and graphene channels. The salt solution comprises one of sodium chloride solution, potassium chloride solution and magnesium chloride solution. An INDEPENDENT CLAIM is included for an electro-osmosis device based on ion selectivity. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of net charge movement driven by electric field and induced electro-osmotic flow. (Drawing includes non-English language text).