Structure Characterization and Luminescent Properties of Mesoporous SiO₂ Loaded With 1,8-Naphthalic Anhydride

The organic-inorganic luminescent hybrid mesoporous materials (LHMS) was prepared via aminopropyl groups modification and subsequently 1, 8-Naphthalic anhydride loading by using bimodal mesoporous materials (BMMs) and MCM-41 as carriers, respectively.The resultant hybrid materials were characterized by XRD, TEM, SEM, BET, FT-IR and PL methods.It was showed that the emission peak position of LHMS-BMMs is around 444 nm, while for LHMS-MCM-41 with about 450 nm, demonstrating that the blue-shift phenomenon of LHMS-BMMs was more remarkable than that of LHMS-MCM-41.The most reason is the different morphology and related particle sizes between BMMs and MCM-41: BMMs is of spherical particle with a size of around 50 nm and uniform mesopores (about 3 nm) , while MCM-41 reveals irregular particle distribution in the range of 1-3 μm, but with uniform one-dimensional mesopores (about 3 nm) .