Photosensitization of Colloidal SnO₂ Semiconductor Nanoparticles with Xanthene Dyes

Figure 2

Absorption spectrum of FN (1×10⁻⁵ M; red color) in the presence of colloidal SnO₂ (0--5×10⁻⁴ M; blue color) in water. The arrow indicates the absorbance decreases on increasing concentration of colloidal SnO₂.