Fig. 5From: Absorption mechanisms of Cu2+ on a biogenic bixbyite-like Mn2O3 produced by Bacillus CUA isolated from soilThree types of linkage between sorbed Cu2+ (CuO6 octahedron) and the MnO6 octahedron on the surface of biogenic Mn oxide: (a) monodentate mononuclear (MM); (b) bidentate mononuclear (BM); (c) bidentate binuclear (BB)Back to article page