Figure 4

Isotherms of (a) Au (III) and (b) Au (I) adsorption into the capsule (C0 = 0–5500 mg/L, pH = 2, t = 24 h, Mads/Vsol = 0.4 g/30 mL, T = 25 ± 2 °C).
Isotherms of (a) Au (III) and (b) Au (I) adsorption into the capsule (C0 = 0–5500 mg/L, pH = 2, t = 24 h, Mads/Vsol = 0.4 g/30 mL, T = 25 ± 2 °C).