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

Gupta, Asha and Singh, Preetam and Shivakumara, C (2010) Synthesis of BaSO4 nanoparticles by precipitation method using sodium hexa metaphosphate as a stabilizer. In: Solid State Communications, 150 (9-10). pp. 386-388.

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Official URL: http://dx.doi.org/10.1016/j.ssc.2009.11.039

Abstract

We describe the synthesis and structure of Barium sulfate nanoparticles by precipitation method in the presence of water soluble inorganic stabilizing agent, sodium hexametaphosphate, (NaPO3)(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) (angstrom), b = 8.949(1) (angstrom) and c = 5.501 (1) (angstrom) 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 SO42- 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. (C) 2009 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: Nanostructures; Chemical synthesis; Crystal structure and symmetry; X-ray scattering
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 07 Jun 2010 06:49
Last Modified: 07 Jun 2010 06:49
URI: http://eprints.iisc.ernet.in/id/eprint/26632

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