Dielectric properties of K2Pb(SO4)2 at different temperatures were studied with respect to frequency and the results were discussed. In our present work, K2Pb(SO4)2 was synthesized at 80°C using potassium sulphate and lead nitrate of high purity as the starting material. The structural property of the material was studied by X-ray diffraction (XRD). The functional groups present in the material were identified using Fourier Transform Infra-Red (FTIR) Spectroscopy. The thermal behaviour was analyzed by using TG-DSC studies. UV-Vis Spectroscopy and Photoluminescence studies were taken to analyze the optical nature of the material.
1. INTRODUCTION
Dielectrics are insulating materials that exhibit the property of electrical polarization …show more content…
Potassium sulfate was purchased from M/S.Sisco Research Laboratories Pvt Ltd, Mumbai, and lead nitrate from M/S.Himedia Laboratories PVT LTD, Mumbai. The solutions of potassium sulfate and lead nitrate was prepared individually and filtered. Lead nitrate solution was prepared at room temperature and filtered twice using Whatman filterpaper with mesh size of 11μm. K2SO4 solution was prepared at 80°C and filtered twice as like before. Then Pb(NO3)2 solution was added dropwise with filtered K2SO4 solution. The precipitate obtained was stirred for two hours. Then the precipitate was washed with distilled water, mixture of distilled water and methanol (50:50) and finally with …show more content…
3. RESULT AND DISCUSSIONS
3.1 X-RD Analysis
X-RD pattern of the sample was recorded on a XPERT-PRO X-ray diffraction instrument using CuKα (1.5406Å) radiation at 40 kV and 30 mA. X-RD pattern recorded for the synthesized sample was well in agreement with the literature values [7] and ICDD data no: 291015 which confirms that the synthesized powder was K2Pb(SO4)2 and it belongs to rhombohedral structure with space group of hexagonal scalenohedral class. The sharp peaks observed shows that the material synthesized was highly crystalline.
From the value of d-spacing obtained, the lattice parameters ‘a’ and ‘c’ are calculated using the formula (1)
The volume of the unit cell was calculated