Nanoparticles synthesis by electron beam radiolysis

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• 作者：Ioan C?linescu (1)
  Diana Martin (2)
  Daniel Ighigeanu (2)
  Adina I. Gavrila (1)
  Adrian Trifan (1)
  Mariana Patrascu (3)
  Cornel Munteanu (4)
  Aurel Diacon (1)
  Elena Manaila (2)
  Gabriela Craciun (2)
  
• 关键词：Silver nanoparticles ; Electron beam ; Radiolysis
• 刊名：Central European Journal of Chemistry
• 出版年：2014
• 出版时间：July 2014
• 年：2014
• 卷：12
• 期：7
• 页码：774-781
• 全文大小：
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• 作者单位：Ioan C?linescu (1)
  Diana Martin (2)
  Daniel Ighigeanu (2)
  Adina I. Gavrila (1)
  Adrian Trifan (1)
  Mariana Patrascu (3)
  Cornel Munteanu (4)
  Aurel Diacon (1)
  Elena Manaila (2)
  Gabriela Craciun (2)
  
  1. Department of Bioresources and Polymer Science, University Politehnica of Bucharest, 010072, Bucharest, Romania
  2. Plasma and Radiation Physics, Electron Accelerators Laboratory, National Institute for Lasers, 077125, Magurele, Ilfov, Romania
  3. S.C. CHEMSPEED S.R.L. member of PRIMOSAL Group, 010856, Bucharest, Romania
  4. Institute of Physical Chemistry “Ilie Murgulescu- Romanian Academy, 060021, Bucharest, Romania
  
• ISSN：1644-3624

文摘

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? and 7- kGy s?, 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.