Figure 2From: Preparation of γ-Fe2O3/ZnFe2O4nanoparticles by enhancement of surface modification with NaOHXRD patterns of the samples prepared without NaOH (0) and with increasing NaOH concentrations: 0.35 (1), 0.70 (2), 1.40 (3) and 2.10 M (4). Crystallographic indexes (hkl), (hkl)*, as well as A, B, C, D, and E correspond to the γ-Fe2O3 (PDF #39-1346), ZnFe2O4 (PDF #22-1012), and Zn(OH)2 (PDF #20-1435) phases, respectively.Back to article page