Spectroscopic Studies on Zinc Barium Oxalate Crystals Grown by Gel Method

Mangala M. Sanjeevannanavar¹ , Jagannatha N.² , Rohith P.S.³

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.2 , pp.1-4, Jun-2020

Online published on Jun 30, 2020

Copyright © Mangala M. Sanjeevannanavar, Jagannatha N., Rohith P.S. . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
In the present paper, Zinc mixed Barium Oxalate (ZnBaO) crystals were grown successfully by silica hydrogel technique. The optimum conditions were established by varying various parameters such as specific gravity of Sodium Meta Silicate (SMS), concentration of the oxalic acid (C2H2O4.2H2O) solution, pH of the gel, gel setting time, concentration of reactants like zinc chloride (ZnCl2) and barium chloride (BaCl2.2H2O) etc. Field Emission Scanning Electron Microscope (FESEM) characterization shows the existence of various layers in the grown crystals. Elemental analysis studied by Energy Dispersive X-ray Analysis (EDAX). It determines the percentage composition of elements present in the grown crystals. The study of EDAX confirms the grown crystal has Zn2+, Ba2+, C and O elements. The vibrational analysis of grown crystals identified by FTIR and laser Raman spectroscopy reveals the functional groups like O-H band, C-H band, C=O, C-C bands and metal oxide bands present in the grown crystals. The study of UV-Visible spectrum reveals optical constants like energy bandgap, absorption coefficient, refractive index, reflectance, electrical polarizability and cutoff wavelength of the grown crystal. These constants considered to characterizing materials which are used in various applications like fabrication of optoelectronic devices

Key-Words / Index Term :
Zinc Barium Oxalate, Silica hydrogel, FESEM, EDAX, FTIR

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