Fluorescent Rosamine/TiO₂ Composite Films for the Optical Detection of NO₂

Figure 2

UV-Vis absorption spectra of (a) RosCOOH and (b) RosNH₂ in dichloromethane solution (dashed line) and anchored to nanocrystalline TiO₂-based composite films (solid line).

(a)

(b)