Open AccessCrystallographic and optical bandgap study of LaFe1-xMgxO3 (x=0.01 and 0.05) nanoparticle
Author(s) -
R. R.H. Dwimivanusa,
Djoko Triyono,
M. N. Abdillah
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1816/1/012065
Subject(s) - band gap , orthorhombic crystal system , materials science , fourier transform infrared spectroscopy , analytical chemistry (journal) , crystallite , spectroscopy , doping , ionic radius , infrared , ultraviolet visible spectroscopy , lattice constant , crystal structure , crystallography , diffraction , chemistry , optics , ion , optoelectronics , physics , metallurgy , organic chemistry , chromatography , quantum mechanics
In this study, material with x = 0.01 and x = 0.05 have been successfully synthesized using the sol-gel method. Characterization of the material was carried out by X-ray Diffraction spectroscopy (XRD), Ultraviolet-Visible Spectrophotometry (UV-VIS), and Fourier Transform Infrared Spectroscopy (FTIR). The XRD data of LaFe 1- x Mg x O 3 was confirmed single-phase with orthorhombic structure and Pbnm space groups for all samples. The lattice parameter value increases with increasing Mg content, which is predicted due to the larger ionic radii Mg 2+ successfully substituted Fe 3+ . The crystallite size indicated that samples were nano-scale particles. FTIR spectra confirm that the increased Mg substitution increases the distortion of LaFeO 3 lattice, which correlates with XRD results. The UV-Vis characterization aimed to measure the optical bandgap energy. The optical bandgap energy value decreases with increasing Mg doping. Lower optical bandgap value makes a positive impact as promising candidates for photocatalytic applications.