The Influence of NaOH concentration on the structural and morphological properties of nanoparticles Ni0.4Zn0.5Co0.1Fe2O4 synthesized by coprecipitation N I M Aturroifah (a), N E A Wahyuni (a), A S N Hidayah (a), S Zuhroh (a), Hartatiek (a,b), A A Sukkaew (c), R Kurniawan (a,b) and J Utomo (a,b)*
a) Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang, 65145, Indonesia.
b) Center of Advanced Materials for Renewable Energy, Universitas Negeri Malang, Jl. Semarang, Malang, 65145, Indonesia.
*joko.utomo.fmipa[at]um.ac.id
c) Department of Renewable Energy Technology, Faculty of Science Technology and Agriculture, Yala Rajabhat University, 95000, Thailand.
Abstract
Ni0.4Zn0.5Co0.1Fe2O4 nanoparticles have been synthesized using the coprecipitation method with the different concentration of NaOH coprecipitant. The synthesis was carried out at a synthesis temperature of 90 degree celcius and the concentration of NaOH was varied by 5 M, 7 M, 9 M and 12 M. X-ray diffraction (XRD) and transmission electron microscopy (TEM) was used to analyze structural and morphological properties of Ni0.4Zn0.5Co0.1Fe2O4 nanoparticles. The crystallite size of Ni0.4Zn0.5Co0.1Fe2O4 nanoparticles calculated by the Scherrer equation decreased in size with increasing NaOH concentration. The lattice parameters of Ni0.4Zn0.5Co0.1Fe2O4 nanoparticles with 5 M NaOH concentration of 8.380 angstrom and high crystallinity. The resulting diffraction pattern is a cubic spinel structure with a single phase at the highest diffraction peak of 35.5 degree i.e. plane (311). Vibration bands in Ni0.4Zn0.5Co0.1Fe2O4 nanoparticles based on variations in NaOH concentration were obtained through fourier transform infra red (FTIR) analysis which resulted in the formation of metal ion vibrational bands. The absorption peak of the octahedral site was Investigated at 487.14 cm-1, while the absorption of the tetrahedral site was placed at 689.3 cm-1. This is in good agreement with the characteristic of spinel structure having tetrahedral and octahedral sites.
