Hybrid Films Photoluminescence of Chitosan/ZnAl2O4

This work reports the photoluminescence chitosan/ZnAl2O4 films in mass ratios 1:1, 1:2, 1:3, 1:4 and 1:5, respectively. The films were presented flexible, opaque, with a thickness of 0.04 mm and were characterized by XRD, FTIR, emission and excitation. The results show the presence of characteristic peaks of chitosan and ZnAl2O4, and bands related to the presence of chitosan, silanol and siloxane groups and silane agent used in surface modification ZnAl2O4, which acts as a binding agent with the chitosan all movie reviews. The excitation and emission spectra showed the presence of broadband processes associated with charge transfer from Al +3 the O-2 in all the films, and that the highest photoluminescence intensities were observed for the films 1:1 and 1:2, which showed higher concentrations than the concentrations Qs 1:3, 1:4 and 1:5. Thus, Qs acted as a binder, transferring energy to Al +3 the O- 2.