Figure 3
From: Au–Ag alloy nanoparticle-incorporated AgBr plasmonic photocatalyst

(a) Action spectrum of the external quantum yield (ϕex) for the Au–Ag@AgBr (y = 0.012 mol%) photocatalyzed degradation of 2-naphthol. For comparison, the absorption spectra of Au–Ag@AgBr (y = 0.012 mol%) and AgBr are also shown. (b) Excitation band for the 2-naphthol degradation. (c) Comparison of the initial reaction rate (v0) in the Au–Ag@AgBr (y = 0.012 mol%) system under different excitation conditions. (d) Plots of reaction-enhancing ratio as a function of λex(2) with the λex(1) fixed at 420 ± 40 nm.