Zinc Barium Oxalate Crystals Grown by Gel Method: A Spectroscopic and Thermal Studies | Chapter 08 | Challenges and Advances in Chemical Science Vol. 8

 In this research, the silica hydrogel approach was employed to generate zinc mixed barium oxalate (ZnBaO) crystals successfully. Variables such as the specific gravity of Sodium Meta Silicate (SMS), the concentration of the oxalic acid (C2H2O4.2H2O) solution, the pH of the gel, the gel setting time, the concentration of reactants such as zinc chloride (ZnCl2) and barium chloride (BaCl2.2H2O), and others were used to determine the optimum conditions. The presence of distinct layers in the produced crystals is revealed using a Field Emission Scanning Electron Microscope (FESEM). X-ray energy dispersive analysis (EDAX). This was utilised to look into elemental analysis. It establishes the elemental percentage composition of the crystals as they grow. The EDAX analysis reveals the presence of Zn2+, Ba2+, C, and O components in the formed crystal. The existence of functional groups such as the O-H band, C-H band, C=O, C-C bands, and metal oxide bands is revealed by vibrational analysis of formed crystals identified by FTIR and laser Raman spectroscopy. The energy bandgap, absorption coefficient, refractive index, reflectance, electrical polarizability, and cutoff wavelength of the formed crystal are revealed by UV-Visible spectrum analysis. These constants are used to characterise materials used in a wide range of applications, including the manufacture of opto-electronic devices. TGA, DSC, and DSC were used to investigate the thermal stability of ZnBaO crystals, revealing the chemical pathway involved in disintegration.

Author(S) Details

Mangala M. Sanjeevannanavar
Department of Physics, FMKMC College, A Constituent College of Mangalore University, Madikeri-571201, Kodagu, Karnataka, India.

N. Jagannatha
Department of Physics, FMKMC College, A Constituent College of Mangalore University, Madikeri-571201, Kodagu, Karnataka, India.

P. S. Rohith
Department of Physics, FMKMC College, A Constituent College of Mangalore University, Madikeri-571201, Kodagu, Karnataka, India.

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