Evidence of chitosan-mediated reduction of Au( iii ) to Au(0) nanoparticles under electron beam by using OH˙ and e − aq scavengers

Abstract : Selective scavengers of e−aq and OH˙ radicals were used to investigate the radiolytic synthesis of gold nanoparticles from Au(III) solutions in the presence of chitosan. This reaction does not exclusively follow the direct reduction by solvated electrons. Irradiation generates short-lived and long-lived reductive species derived from chitosan that efficiently convert Au(III) into Au(0) which aggregates to form clusters.
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https://hal.univ-reims.fr/hal-02431693
Contributor : Xavier Coqueret <>
Submitted on : Wednesday, January 8, 2020 - 9:49:22 AM
Last modification on : Saturday, January 11, 2020 - 1:16:32 AM

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Khoa Dang Nguyen VÔ, Christelle Kowandy, Laurent Dupont, Xavier Coqueret. Evidence of chitosan-mediated reduction of Au( iii ) to Au(0) nanoparticles under electron beam by using OH˙ and e − aq scavengers. Chemical Communications, Royal Society of Chemistry, 2015, 51 (19), pp.4017-4020. ⟨10.1039/C4CC09346A⟩. ⟨hal-02431693⟩

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