Figure 6From: NH4 + directed assembly of zinc oxide micro-tubes from nanoflakes FESEM images of ZnO nanostructures obtained with the ratio of 3.2:1.0. From the precipitation reaction between (A) Zn(CH3COO)2·2H2O and Na2CO3, and (B) ZnSO4·7H2O and Na2CO3.Back to article page