Silver/Copper Nanoparticle-Modified Polymer Chitosan/PVA Blend Fibers

Figure 9

FTIR spectra of the (a) (i) pure chitosan, (ii) pure PVA, (iii) 30/70 CS/PVA blend, and (b) (iv) 0.1 wt%, (v) 0.2 wt%, (vi) 0.3 wt%, and (vii) 0.4 wt% Ag/Cu/CS/PVA. Voltage: 20 kV; distance: 15 cm.

(a)

(b)