Effect of calcination on the structural, optical and magnetic properties of BaWO4 nanoparticles synthesized by chemical precipitation

BaWO4 nanoparticles have been synthesized by chemical precipitation method using barium nitrate and sodium tungstate. Thermogravimetric analysis has been done to determine the thermal behaviour of the sample. The synthesized nanoparticles have been calcined at 400, 550 and 700 °C for 3 h to get well defined crystalline nanoparticles. As synthesized samples have been characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, UV-Visible absorption and photoluminescence spectroscopy. Magnetic properties of the samples have been studied by vibrating sample magnetometer measurements. The effect of calcination temperature on the structural, optical and magnetic properties of BaWO4 has also been investigated

Effect of Electron Beam Irradiation on Optical Properties of Manganese Tungstate Nanoparticles

Manganese tungstate (MnWO4) nanoparticles were synthesized at room temperature by chemical precipitation method. The effect of high energy electron beam (EB) irradiation on the optical properties of MnWO4 nanoparticles was investigated. The absorption spectra, photoluminescence intensity, and Raman bands of the irradiated samples were modified, which has been attributed to defects and particle size variation. The present investigation found that the beam irradiation is a new and efficient method to enhance the optical absorption performance and photoactivity of MnWO4 nanoparticles

Effect of calcination on the structural, optical and magnetic properties of BaWO₄ nanoparticles synthesized by chemical precipitation

14-22BaWO4 nanoparticles have been synthesized by chemical precipitation method using barium nitrate and sodium tungstate. Thermogravimetric analysis has been done to determine the thermal behaviour of the sample. The synthesized nanoparticles have been calcined at 400, 550 and 700 °C for 3 h to get well defined crystalline nanoparticles. As synthesized samples have been characterized by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, UV-Visible absorption and photoluminescence spectroscopy. Magnetic properties of the samples have been studied by vibrating sample magnetometer measurements. The effect of calcination temperature on the structural, optical and magnetic properties of BaWO4 has also been investigated