Figure 4
From: Excellent capability in degrading azo dyes by MgZn-based metallic glass powders
(a) The OCP and (b) potentiodynamic polarization curves of glassy Mg73Zn21.5Ca5.5 and crystalline Mg ribbons in water and azo dye solutions, respectively. The inset shows corrosion current density i and potential V in linear coordinates. (c) The reactivity ( = Δi/ΔV) of glassy Mg73Zn21.5Ca5.5 and crystalline Mg with water and azo dye.
