Mesoporous　Ti-HMS　is　able　to　be　used　as　an　active　＂single-site＂　photocatalyst　for　the　gas-phase　heterogeneous　degradation　of　benzene,　a　notorious　aromatic　organic　pollutant.　In　particular,　it　has　been　found　that　Ti-HMS　shows　enhanced　activity　and　stability　toward　degradation　of　benzene　as　compared　with　commercial　mania　(Degussa,　P25),　which　could　be　attributed　to　its　unique　features　of　large　surface　area,　highly　dispersion　state　of　Ti　oxide　species　and　mesoporous　channel　structure　This　suggests　that　there　is　a　promising　potential　in　using　Ti-containing　molecular　sieves　as　a　photocatalyst　for　degradation　of　volatile　aromatic　organic　pollutants　in　air,　therefore　advancing　the　applications　of　such　＂single-site＂　photocatalyst　in　environment　cleanup.　(C)　2010　Elsevier　B　V.　All　rights　reserved