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Synthesis of Nanoparticles by Precipitation Method Using Sodium Hexa Metaphosphate as a Stabilizer by Asha Gupta; Preetam Singh; C. Shivakumara is a Physics and Astronomy article available to read on EtoBox.

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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 2- 4 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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Author

Asha Gupta; Preetam Singh; C. Shivakumara

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0038-1098)

Published

2010

Language

EN

Field

Physics and Astronomy (Physical Sciences)