| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1651470 | Materials Letters | 2007 | 4 Pages |
Abstract
Aqueous dispersions of Ag nanoparticles (NPs) were obtained after γ-irradiation of solutions containing AgNO3, sodium citrate, and ethanol. The dose of γ-irradiation influences the diameter of the Ag NPs, as evidenced from UV-Vis absorption spectra and scanning electron microscopy (SEM) images. When the γ-irradiation dose increased from 60 to 530 Gy, the particle diameters decreased continuously as a result of irradiation-induced Ag NP fragmentation. At a constant γ-irradiation dose (ca. 100 Gy), we obtained Ag NPs that had highly reproducible particle diameters. This study reveals that γ-irradiation-mediated synthesis is a promising method for the preparation of stable Ag NPs when “clean” metal surfaces are required, e.g., for use in sensing devices.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Fu-Ken Liu, Ya-Chuan Hsu, Ming-Huei Tsai, Tieh-Chi Chu,