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

Khoa Dang Nguyen Vô; Christelle Kowandy; Laurent Dupont; Xavier Coqueret

doi:10.1039/C4CC09346A

Journal articles

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

Khoa Dang Nguyen Vô ¹ Christelle Kowandy ¹ Laurent Dupont ¹ Xavier Coqueret ¹

1 ICMR - Institut de Chimie Moléculaire de Reims - UMR 7312

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.

Document type :

Journal articles

Domain :

Chemical Sciences / Polymers

Chemical Sciences / Material chemistry

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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 : Monday, May 17, 2021 - 2:52:19 PM

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

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

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