Figure 6

UV-vis spectrum (a) of Eu-doped calcium aluminate sample, dynamic curve (b), plots of ln (c0/c) versus time (c) and absorbance variations (d) of MB solution over Eu-doped calcium aluminate sample.

UV-vis spectrum (a) of Eu-doped calcium aluminate sample, dynamic curve (b), plots of ln (c0/c) versus time (c) and absorbance variations (d) of MB solution over Eu-doped calcium aluminate sample.