Research Article

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

Figure 5

Kinetics of the exposure of RosCOOH/TiO2 (monitored at 577 nm, λex = 530 nm) and RosNH2/TiO2 (monitored at 590 nm, λex = 525 nm) composite films to 5, 20, and 50 ppm NO2.