Journal of Radiation Research and Radiation Proces ›› 2017, Vol. 35 ›› Issue (3): 30301-030301.doi: 10.11889/j.1000-3436.2017.rrj.35.030301

• RADIATION CHEMISTRY • Previous Articles     Next Articles

Environmentally friendly preparation of silver powder via irradiation

LIANG Mengmeng, LIANG Ying, FANG Bin   

  1. Institute of Nuclear Technology and Application, East China University of Science and Technology, Shanghai 200237, China
  • Received:2016-12-16 Revised:2017-01-06 Online:2017-06-20 Published:2017-06-15
  • Supported by:

    Supported by Innovation Program of Shanghai Municipal Education Commission(14ZZ057)

Abstract:

Silver particles were successfully synthesized by irradiating silver oxalate in deionized water under a nitrogen atmosphere by using the electron accelerator and by changing the pH value, absorbed dose, and structure inducer. Further, the silver powders with different particle morphologies (e.g., granular, rod-like, and lamellar-shaped particles) were investigated by field-emission scanning electron microscopy and X-ray diffraction analysis. Under the condition of an absorbed dose of 4 MGy and pH=6, silver powder composed of rod-like particles with diameters of about 2 μm and lengths of 5~10 μm were obtained with the organic amine compound induction of CS005 or CSH100. Further, silver powder composed of quadrilateral flaky particles was obtained with the coexisted of CS005 and BTA, and silver powder composed of a mixture of triangular and polygonal lamellar particles was obtained with the synergistic induction of CSH100 and PEO200. Under the condition of an absorbed dose of 4 MGy and pH=9, spherical silver nanoparticles with diameters of about 20 nm could be obtained with the CS005 and lamellar mixed silver particles with diameters of about 100 nm were synthesized with the CSH100. Under the condition of an absorbed dose of 8 MGy and pH=9, lamellar mixed silver particles with diameters of about 100 nm were obtained with the CS005 or CSH100.

Key words: Radiation, Sliver powders, Morphology

CLC Number: 

  • TL69