4TH International Congress on Technology - Engineering & SCIENCE - Kuala Lumpur - Malaysia (2017-08-05)

Magnetic Characteristics Of Zn(1-x)mnxo (0.06≤x≤0.10) Nanoparticles Synthesized By The Co-precipitation Method
The Zn(1-x)MnxO (0.06≤x≤0.10) nanoparticles have been synthesized in the form of powder with the co-precipitation method at low temperature employing Zn(CH3COO)2•2H2O powder, Mn(CH3COO)2•4H2O powder, HCl solution, and NH4OH solution as starting materials. The structural characterization of Zn(1-x)MnxO (0.06≤x≤0.10) nanoparticles was performed using X-ray diffractometer (XRD) and Fourier transform infrared (FTIR) Spectroscopy, while the magnetic examination was conducted by vibrating sample magnetometer (VSM). The results clearly show that an impurity peak of ZnMn2O4 appears on the diffraction spectra for the sample with x=0.10. Further, the peaks around 500 cm-1 and 400 cm-1 in the FTIR spectra clearly reveal the occurrence of (Zn,Mn)-O strain mode. These corresponding absorption peaks decrease with the increasing Mn doping with a value that is lower compared to that of pure ZnO. The magnetic properties of all samples prepared have varied depending on Mn doping from paramagnetic (x=0.06) to superparamagnetic (x=0.07, 0.08 and 0.09) and back to paramagnetic (x=0.10).
Heru Harsono Harsono, ING. Wardana Wardana, A.A.Sonief Sonief, Zahratul Jannah AR AR, Darminto Darminto