학술논문
Investigation on the microstructural, optical, electrical, and photocatalytic properties of WO3 nanoparticles: an effect of Ce doping concentrations
Document Type
Original Paper
Source
Journal of Materials Science: Materials in Electronics. 34(28)
Subject
Language
English
ISSN
0957-4522
1573-482X
1573-482X
Abstract
The pure and Ce-doped WO3 nanoparticles (NPs) were synthesized by a simple chemical precipitation method. This work aims to study the impact of Ce on the structural, morphological, optical, electrical, dielectric, and photocatalytic activity of WO3 NPs. X-ray diffraction (XRD) spectra reveal the formation of the monoclinic structure of WO3 and Ce–WO3 NPs. The average crystallite size decreased from 37 to 31 nm when the Ce doping concentrations increased from 0 to 5%. The bandgap value of WO3 is 2.76 eV, which is reduced by increasing Ce concentrations. The 5% Ce-doped WO3 NPs exhibited maximum electrical conductivity of 5.01 × 10−7 S/cm. The frequency and temperature dependence DC conductivity of Ce-doped WO3 NPs were determined. The 5% Ce-doped WO3 NPs showed the highest photocatalytic activity; 87% of methyl orange (MO) dye was degraded under visible light irradiation.