Preparation and luminescence of (SBA-15)-Eu2O3 composite materials

► (SBA-15)-Eu2O3 was prepared via the solid-phase and liquid-phase ultrasonic methods. ► Host-guest composite materials showed the particular properties of luminescence. ► SBA-15 made centrosymmetry of Eu3+ higher in the prepared (SBA-15)-Eu2O3 samples. ► 5D0→7F1 transition strengthens, the 5D0→7F2 weakens. ► Peaks of the composite material samples broaden compared with those of nano-Eu2O3.