Three　mesoporous　silica　materials　(MCM-41,　MSN　and　BMMs)　possessing　different　morphologies　but　similar　hexagonal　arranged　mesopores　with　almost　the　same　pore　size　(2-3　nm)　were　functionalized　by　Zn　and　[1-(trimethoxysilyl)propyl-3-methylimidazolium]　ionic　liquid　(ILs)　via　post-grafting　treatment.　The　ILs　grafted　mesoporous　silicas　were　then　characterized　by　porosity,　microscopy　and　SAXS　techniques,　and　the　successful　loading　of　Zn　and　ILs,　as　well　as　the　different　distribution　of　functional　groups　in　different　supports　were　shown.　Furthermore,　the　cycloaddition　reaction　of　CO2　with　epoxide　was　employed　to　evaluate　the　influences　of　the　ILs　distribution,　which　was　proved　to　be　caused　mainly　by　varying　morphologies　of　different　supports.　All　the　catalysts　showed　good　catalytic　activities.　Interestingly,　at　low　temperature,　the　inter　particle　supported　ILs　in　BMMs　had　the　highest　catalytic　efficiency,　while　the　aggregation　grafting　ILs　on　MCM-41　present　the　lowest　activity.　However,　the　mesoporous　silicas　with　ordered　arranged　nanopores　present　the　superiority　at　higher　temperature.　The　results　highlight　the　crucial　role　played　by　the　morphology　of　the　supports.