One-step synthesis of highly monodisperse silver nanoparticles using poly-amino compounds

• Published in: Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2014-01, Vol.441, p.109-115
• Main Authors: Xiong, Jing, Wu, Xue-dong, Xue, Qun-ji
• Format: Article
• Language: English
• Subjects: 1–2 nm; Agglomeration; DETA; Highly stable; Infrared spectroscopy; Monodisperse; Nanoparticles; One-step; Poly-amino compounds; Silver; Silver nanoparticles; Synthesis; Transmission electron microscopy; X-ray photoelectron spectroscopy
• ISSN: 0927-7757; 1873-4359
• DOI: 10.1016/j.colsurfa.2013.08.061

Monodisperse Ag nanoparticles (Ag NPs) (1–2nm in diameter) was synthesized using a straightforward one-step method. Poly-amino compounds were utilized as effective stabilizing agent to prevent the aggregation of Ag NPs in nonaqueous medium. •Highly stable dispersion of monodisperse Ag nanoparticles (1–2nm) was obtained.•Poly-amino compounds were used as effective stabilizing agent in nonaqueous medium.•The robust one-step route is simple and highly reproducible. Monodisperse Ag nanoparticles (Ag NPs) (1–2nm in diameter) was synthesized using a straightforward one-step method. Poly-amino compounds (DETA, TETA and PEPA) with two or more primary amino groups NH2, which containing N donor atoms, were utilized as effective stabilizing agent to prevent the aggregation of Ag NPs in nonaqueous medium. The successful formation of poly-amino compounds stabilized Ag NPs was demonstrated by ultraviolet–visible spectroscopy (UV–vis), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Fourier-transform infrared spectroscopy (FRIR). The mechanism of poly-amino compounds on the stabilization of Ag NPs is also discussed. This facile one-step synthesis route may provide a new perspective for creating other nanoparticles that have potential application in various nanotechnology fields.