Figure 7

The excitation (a, c) and emission (b, d) spectra of hybrid material SBA-15-IMI-Tb(DPA)₃ (a, b) and SBA-15-IMI-Eu(DPA)₃ (c, d) and insets of Figure 7b and 7d are photos of SBA-15-IMI-Tb(DPA)₃ (green) and SBA-15-IMI-Eu(DPA)₃ (red) excited by ultraviolet light at 280 nm.