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Synthesis of Platinum nanoparticles by Gamma Radiolysis

Published online by Cambridge University Press:  12 March 2018

Takalani Cele ,
Malik Maaza  and
Alain Gibaud
Takalani Cele*
Affiliation:
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; iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, South Africa
Malik Maaza
Affiliation:
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; iThemba LABS-National Research Foundation, P O Box 722, Somerset West, 7129, South Africa
Alain Gibaud
Affiliation:
L’Université Nantes Angers Le Mans (L’UNAM), Institut des Molécules et Matériaux du Mans (IMMM UMR 6283 CNRS), Avenue Oliver Messiaen, 72085Le Mans, Cedex 9, France
*
*Correspondence author: tmadima@yahoo.com
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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.

Keywords

radiation effectsnanoscalenucleation & ampgrowthoptical propertiesPt
Type
Articles
Information
MRS Advances , Volume 3 , Issue 42-43: African Materials Research Society 2017 , 2018 , pp. 2537 - 2557
Copyright
Copyright © Materials Research Society 2018 

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