▎ 摘　　要

NOVELTY - Ion-selective conduction composite membrane comprises at least one inner layer (2) disposed between two outer layers (1,3). The outer layers are each formed from a first material including a network of nanofibers and/or crosslinked microfibers and pores having a size of 10 nm and 10 mu m. The internal layer is formed from a second material including nanoparticles functionalized at the surface by charged groups and/or which become charged in presence of water and having pores with size of 1-100 nm. The composite membrane has a thickness of 4-100 mu m. USE - The composite membrane is useful as a selective ion conduction membrane for the extraction of ionic or ionizable substances from water to be treated, extraction of organic compounds from water to be treated, carrying out electrolysis reaction, carrying out reverse electrodialysis reaction to produce electricity from salinity gradient (claimed). ADVANTAGE - The composite membrane is economical and easy to produce. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for manufacturing the composite membrane, comprising (a) filtering the solution including nanofibers and/or microfibers on a filtration medium to form a first internal layer, (b) filtering the solution of particles of nanoparticles functionalized at the surface with charged groups to form inner layer on first outer layer, (c) filtering the solution of nanofibers and/or microfibers to form second outer layer including nanofibers and/or microfibers on the inner layer, (d) filtering the crosslinking solution capable of crosslinking the nanofibers and/or the microfibers of the outer layers, (e) drying the product in an oven, and (f) removing the filtration medium. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the cross-sectional view of the ion-selective conduction composite membrane.