Synthesis of BaSO4 nanoparticles by precipitation method using sodium hexa metaphosphate as a stabilizer

Add time:09/30/2019    Source:infona.pl

We describe the synthesis and structure of Barium sulfate nanoparticles by precipitation method in the presence of water soluble inorganic stabilizing agent, sodium hexametaphosphate, (NaPO 3 ) 6 . The structural parameters were refined by the Rietveld refinement method using powder X-ray diffraction data. Barium sulfate nanoparticles were crystallized in the orthorhombic structure with space group Pbnm (No. 62) having the lattice parameters a=7.215(1) (Å), b=8.949(1) (Å) and c=5.501(1) (Å) respectively. Transmission electron microscopy study reveals that the nanoparticles are size range, 30–50 nm. Fourier transform infrared spectra showed distinct absorption due to the SO 4 2− moiety at 1115 and 1084 cm −1 indicating formation of barium sulfate nanoparticles free from the phosphate group from the stabilizer used in the synthesis.

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