Figure 3.
Kinetics of NG degradation upon exposing hybrid NGs cast on glass slides to UVO for 0 to 60 min. Top images are UV-Vis spectra for as-prepared (t = 0 min) and UVO exposed hybrid NGs. The bottom photographs show images for t = 0 min and t = 60 min (scale bar, 500 mm). Note the color changed from white (t = 0 min) to brown (t = 60 min) for the both NG1:4-Ag and NG1:8-Ag systems.