Synthesis of BaSO4 nanoparticles by precipitation method using sodium hexa metaphosphate as a stabilizer |
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| Authors: | Asha Gupta Preetam Singh C Shivakumara |
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| Institution: | 1. Materials Research Centre, Indian Institute of Science, Bangalore–560 012, India;2. Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore–560 012, India;1. College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, PR China;2. Inspection and Quarantine Technology Center of Hainan Entry–Exit Inspection and Quarantine Bureau, Haikou 570311, PR China;3. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, TIPC, Chinese Academy of Sciences, Beijing 100190, PR China;1. Department of Chemistry, Amirkabir University of Technology, No. 424, Hafez Avenue, 1591634311, Tehran, Iran;2. Novin Ebtekar Company, Exclusive Agent of Metrohm-Autolab and Dropsens Companies, Tehran, Iran;3. Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore;1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;3. National Institute of Advanced Industrial Science and Technology (AIST), Moriyama, Nagoya 463-8560, Japan |
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| 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) (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 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. |
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