SYNTHESIS AND CHARACTERIZATION OF NANOSIZED Mg(OH)2 AND ITS NANOCOMPOSITE WITH POLY (VINYL ALCOHOL)

Abstract

Nano- Mg(OH) 2 was synthesized by co-precipitation method. Peaks between 500 and 1250 cm-1 in FTIR spectroscopy confirmed the presence of metal hydroxide stretching. TGA inferred that above 600°C, 50% of residue weight remained. HRTEM of nanocomposite gave an idea about the nonspherical morphology of particles of size 25 nm to 30 nm. SEM inferred that flower-like morphology for pristine Mg(OH) 2 and higher % weight of aniline-intercalated Mg(OH) 2 had agglomerated structure. UV visible spectrum inferred the presence of Mg 2+ ion at 275 nm and the presence of amino-group-intercalated Mg(OH) 2, which had a sharp peak at 193 nm and the intensity of which increases with the increase in % weight of aniline. PL inferred that aniline-intercalated Mg(OH) 2 showed a lower intensity of which increased with higher wavelength value than the pristine and nanocomposite with PVA.