Nanoparticles synthesis by electron beam radiolysis

• Authors: Ioan Călinescu , Diana Martin , Daniel Ighigeanu , Adina Gavrila , Adrian Trifan , Mariana Patrascu , Cornel Munteanu , Aurel Diacon , Elena Manaila , Gabriela Craciun
• Languages of publication: EN

Abstracts

EN

Electron beam (EB) irradiation is a useful method to generate stable silver nanoparticles without the interference of inherent impurities generated from chemical reactions. Our experiments were carried out using linear electron beam accelerators with two different EB absorbed dose rates: 2 kGy min−1 and 7–8 kGy s−1, and with different absorbed dose levels. The optimum conditions for silver nanoparticles (AgNPs) generation by radiolysis, or by radiolysis combined with chemical reduction, were established. In order to obtain a good yield for AgNPs synthesized by radiolysis, a high dose rate is required, resulting in a rapid production process. At low absorbed dose rates, the utilization of a stabilization agent is advisable. By modifying the experimental conditions, the ratio between the chemical and radiolytic reduction process can be adjusted, thus it is possible to obtain nanoparticles with tailored characteristics, depending on the desired application.

Keywords

EN

Silver nanoparticles   Electron beam   Radiolysis  

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2014
• Volume: 12
• Issue: 7
• Pages: 774-781

Dates

published

1 - 7 - 2014

online

30 - 4 - 2014

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Identifiers

DOI

10.2478/s11532-014-0502-x