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X-ray radiolysis induced formation of silver nano-particles: A SAXS and UV-visible absorption spectroscopy study |
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| Authors: | S Remita P Fontaine E Lacaze H Sellame C Rochas |
| Affiliation: | a Institut des NanoSciences de Paris (INSP), CNRS-UMR 7588, Universités Pierre et Marie Curie et Denis Diderot, Campus Boucicaut, 140 Rue de Lourmel, 75015 Paris, France b Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques (LCBPT), CNRS-UMR 8601, Université Paris Descartes, 45 Rue des Saints-Pères, 75270 Paris Cedex 06, France c Synchrotron SOLEIL, L’Orme des Merisiers, Saint Aubin, BP 48, 91192 Gif sur Yvette Cedex, France d Laboratoire de Spectrométrie Physique (UJF-CNRS-INPG, UMR 5588), 140 avenue de la physique, BP97, 38401 Saint Martin d’Hère Cedex, France and European Synchrotron Radiation Facilities (ESRF), 6, rue Jules Horowitz, BP220, 38043 Grenoble Cedex, France |
| Abstract: | We show that X-ray irradiation of metal salt aqueous solutions in the absence of any stabilizer leads to the synthesis of metal nano-particles, similarly to γ-ray irradiation. The chemical route is the reduction of silver metal ions induced by radiolysis of water. Moreover, X-rays used for the synthesis allow following in situ the formation of silver nano-particles by Small Angle X-ray Scattering associated with UV-visible absorption spectroscopy. The synthesized nano-objects appear spherical with a radius of about 14 nm. |
| Keywords: | 82 50 Kx 81 05 Bx 78 70 Ck 78 40 &minus q |
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