Open AccessStudy of La(Fe, Zn)O3 on the structural properties prepared by sol-gel method
Author(s) -
F. Fajriyani,
Djoko Triyono
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/902/1/012033
Subject(s) - orthorhombic crystal system , raman spectroscopy , band gap , analytical chemistry (journal) , fourier transform infrared spectroscopy , materials science , absorbance , diffuse reflectance infrared fourier transform , diffuse reflection , spectroscopy , crystal structure , infrared , nuclear chemistry , crystallography , chemistry , optics , biochemistry , physics , optoelectronics , chromatography , photocatalysis , quantum mechanics , catalysis
Partial substitution of other metallic ions at La and/or Fe sites of LaFeO 3 had been applied to modify the structural properties and for enhancing the properties of its material. In this present work, we prepared LaFeO 3 by replacing a portion of Fe 3+ with Zn 2+ with x = 0.03; 0.05; and 0.07 to study the effect on the structural which prepared by sol-gel method. The samples were identified by X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), Fourier Transform Infrared (FTIR) spectra, Raman spectroscopy, and Ultraviolet-Visible Diffuse Reflectance spectroscopy (UV-Vis DRS). XRD pattern showed all of the samples formed in single crystal and are having an orthorhombic structure with space group Pbnm. The lattice parameters were found to be slightly increased with the increase of Zn concentration. The result of FTIR spectra and Raman spectra also show further information about the formation of LaFeO 3 with the distortion due to the replacement of Zn 2+ into Fe 3+ . The absorbance and reflectance of samples are measured using UV-Vis DRS and the energy band gap of LaFe 1- x Zn x O 3 ( x = 0.03; 0.05; and 0.07) are determined by Tauc plot using Kubelka-Munk function and was found the energy band gap slightly decreased as the concentration of Zn 2+ increased.