Fabrication of Hetarolite-ZNMN2O4 by Solvothermal Method and its Nanostructural Characterization

Hetarolite-ZnMn2O4 nanoparticles were synthesized by hydrothermal/solvothermal method using Mn (CH3COO)2?4H2O and Zn(CH3COO)2.2H2O as precursors and Oleic acid as surfactant at synthesis temperature of 180ºC for 48hr. The synthesized product was characterized by X-ray Powder Diffraction (PXRD), Field Emission Scanning Electron Microscopy (FE-SEM), and Energy Dispersive X-ray analysis (EDAX), High Resolution Transmission Electron Microscopy (HR-TEM), Selected Area Electron Diffraction (SAED), UV-vis-NIR absorption and Fourier Transform Infrared Spectroscopy (FTIR). The XRD analysis reveals that ZnMn2O4 nanoparticles exhibit tetragonal structure. The functional group ofZnMn2O4is confirmed from FTIR spectral study. The optical property of the sample is discussed from the Uv-vis-NIR absorption spectrum. The chemical composition is confirmed by EDX analysis. The effect of the surfactant, the preparation technique on the crystallite size and distribution is discussed by analyzing the Selected Area Electron Diffraction (SAED) patterns of the synthesized nanoparticles.