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Synthesis of Platinum nanoparticles by Gamma Radiolysis

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Abstract

The synthesis of Platinum (Pt) nanoparticles by gamma irradiation is presented. The 0.1 M Pt solution of different concentration was prepared from K2PtCl4. The platinum aqueous solutions were irradiated by gamma radiation at a dose of 70, 90 and 120 kGy. The findings show the effect of irradiation on PtII solutions with different concentrations. The big black particles that are fairly agglomerated when the concentration was above 0.0050 M were observed. The UV-Vis spectrum of Pt of different concentrations shows a strong absorption peak at the wavelength 261 nm after irradiation, which indicates the presence of platinum nanoparticles. Furthermore, FTIR, XRD and HRTEM images also confirmed the presence of the nanoparticles produced by Radiolysis. The size of the Pt nanoparticles was found to be 7.39 nm.

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Authors and Affiliations

  1. UNESCO-UNISA Africa Chair in Nanosciences-Nanotechnology, College of Graduate Studies, University of South Africa, Muckleneuk ridge, P O Box 392, Pretoria, 0001, South Africa

    Takalani Cele & Malik Maaza

  2. iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, South Africa

    Takalani Cele & Malik Maaza

  3. Institut des Molécules et Matériaux du Mans (IMMM UMR 6283 CNRS), L’Université Nantes Angers Le Mans (L’UNAM), Avenue Oliver Messiaen, 72085, Le Mans Cedex 9, France

    Alain Gibaud

Authors
  1. Takalani Cele
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  2. Malik Maaza
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  3. Alain Gibaud
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Correspondence to Takalani Cele.

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Cele, T., Maaza, M. & Gibaud, A. Synthesis of Platinum nanoparticles by Gamma Radiolysis. MRS Advances 3, 2537–2557 (2018). https://doi.org/10.1557/adv.2018.233

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