Conventional　TS-1　zeolite　has　the　problems　of　limited　number　and　poor　accessibility　of　active　sites(framework　titanium　species),　reducing　its　catalytic　performance　for　olefin　epoxidation.　To　address　these　issues,　a　nano　TS-1　zeolite　with　high　framework　titanium　content　was　synthesized　using　a　combination　of　solvent-complexed　titanium　source　and　pre-hydrolyzed　silicon　source　via　steam-assisted　crystallization,　and　compared　with　conventional　TS-1　zeolite　with　high　framework　titanium　content　prepared　using　hydrothermal　crystallization.　The　results　show　that　compared　with　commercial　and　synthesized　conventional　TS-1　zeolites,　the　resultant　nano　TS-1　zeolite　owns　smaller　crystal　size,　abundant　external　specific　surface　and　higher　framework　titanium　content.　As　a　result,　when　applied　to　the　1-hexene　epoxidation　reaction,　the　resultant　nano　TS-1　zeolite　demonstrates　superior　catalytic　performance　compared　to　the　reference　catalysts,　reflected　by　a　1-hexene　conversion　of　70.　4%,　with　selectivity　and　yield　of　1,　2-epoxyhexane　at　94.　0%　and　66.　2%,　respectively.　©　2025　Research　Institute　of　Petroleum　Processing,　SINOPEC.　All　rights　reserved.