A　novel　luminescent　hybrid　bimodal　mesoporous　silicas　(LHBMS)　were　synthesized　via　grafting　1,8-Naphthalic　anhydride　into　the　pore　channels　of　bimodal　mesoporous　silicas　(BMMs)　for　the　first　time.　The　resulting　samples　were　characterized　by　powder　X-ray　diffraction　(XRD),　N-2　adsorption/desorption　measurement,　Fourier　transform　infrared　spectroscopy　(FT-IR),　Transmission　electron　microscopy　(TEM),　UV-vis　absorption　spectroscopy,　and　Photoluminescence　spectroscopy　(PL).　The　results　show　that　1,8-Naphthalic　anhydride　organic　groups　have　been　successfully　introduced　into　the　mesopores　of　the　BMMs　and　the　hybrid　silicas　are　of　bimodal　mesoporous　structure　with　the　ordered　small　mesopores　of　around　3　nm　and　the　large　mesopores　of　uniform　intra-nanoparticle.　The　excellent　photoluminescent　performance　of　LHBMS　has　a　blue　shift　compared　to　that　of　2-[3-(triethoxysilyl)　propyl-1　H-Benz　[de]isoquinoline-1,　3(2　H)-dione,　suggesting　the　existence　of　the　quantum　confinement　effectiveness.　(C)　2010　Elsevier　Inc.　All　rights　reserved.