The　separation　of　aromatic/aliphatic　mixtures　is　significant　in　chemical　industry.　Pervaporation　has　attracted　increasing　attention　due　to　its　low　energy　consumption　and　environmentally　friendly　process.　However,　the　formation　of　membranes　mostly　use　toxic　organic　solvents,　whereas　in　this　study　water　was　used　instead　to　prepare　membrane　in　separating　aromatic/aliphatic　mixtures.　W3000　were　dispersed　in　water　to　form　micelles,　which　were　then　deposited　onto　the　surface　of　the　tubular　porous　ceramic　substrate　through　the　negative　pressure-driven　assembly　method.　The　emulsion　and　composite　membranes　were　characterized　by　TEM,　SEM　and　FTIR.　The　crosslinking　density　of　W3000　was　also　tested　using　NMR　XLD　analyzing　system.　The　membranes　were　used　for　separating　aromatic/aliphatic　mixtures　through　pervaporation.　The　results　showed　that　compared　with　the　membrane　prepared　by　DMF,　the　pervaporation　separation　index　(PSI)　of　the　composite　membrane　formed　using　water　as　solvent　was　3.3-fold　increased　for　separating　toluene/n-heptane　mixtures.　The　as-prepared　composite　membranes　showed　a　better　comprehensive　pervaporation　performance.　This　facile　strategy　may　have　a　potential　in　the　application　of　pervaporation　for　separating　aromatic/aliphatic　mixtures　in　industry.　(C)　2017　Elsevier　B.V.　All　rights　reserved.