910761.fig.002
Figure 2: The absorption spectra A(λ): 1–4 Zn + 0.01 M SDS; 1: 𝜏 a g = 10 min, 𝜏 𝑒 = 30 min; 2: 𝜏 a g = 22 h, 𝜏 𝑒 = 30 min; 3: 𝜏 a g = 10 min, 𝜏 𝑒 = 2 h; 4: 𝜏 a g = 19 h, τ e = 3 h 16 min; 5–9: Z n + 0.05 M SDS; 5: 𝜏 a g = 7 min, 𝜏 𝑒 = 30 min; 6: 𝜏 a g = 4.5 h, 𝜏 𝑒 = 30 min; 7: 𝜏 a g = 24 h, 𝜏 𝑒 = 30 min; 8: 𝜏 a g = 20 min, 𝜏 𝑒 = 2 h; 9: 𝜏 a g = 19 h, 𝜏 𝑒 = 2 h.