Preparation of silver nanoparticles with controlled particle size
By A. Zielińska, E. Skwarek, A. Zaleska, M. Gazda, J. Hupka. 2009
312 citations recorded by the source corpus.
Abstract Silver colloids show different colors due to light absorption and scattering in the visible region based on plasmon resonance. The resonance wavelength depends on particle size and shape. Here we report chemical reduction methods for preparation of silver nanoparticles exhibiting multicolor in aqueous solutions. Depending on chemical conditions the obtained nanoparticles are different regarding size and morphology. In order to investigate the relationship between size, stability and color of silver colloids we obtained silver nanoparticles in aqueous solutions using different reducing agents. The effect of polyvinyl pyrrolidone (PVP) and polyvinyl alcohol (PVA) on stabilization of obtained silver colloids was investigated. We have also studied the effect of silver precursor and its concentration on the formation of stable silver colloids. UV-VIS spectrum for silver colloids contains a strong plasmon band near 410 nm, which confirms silver ions reduction to Ag° in the aqueous phase. The formation of metal silver was also confirmed by powder X-ray diffraction (XRD) analysis. The diameter size of silver nanoparticles was in the range from 5 nm to 100 nm
Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/79e192dd33f2388cc9083dd8286fd3e0a6628a01
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In Biomedical Engineering
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Citations in the corpus
- Advances of Ag, Cu, and Ag–Cu alloy nanoparticles synthesized via chemical reduction route (2013, background): “…of Ag nanoparticles as reported in many other works (Shon and Cutler 2004; Limsavarn et al. 2007; Van Hyning et al. 2001a, b; Doty et al. 2005; Zou et al. 2006; Medina-Ramirez et al. 2009; Liu et al. 2010, 2012b; Pinto et al. 2010; Vorobyova et al. 1999; Angelescu et al. 2012; Radziuk et al.…”
- Silver nanoparticles: Synthesis, medical applications and biosafety (2020, background): “Tollens reagent) [72], silver sulfate [73], and silver chlorate [74].”
- Synthesis of Silver Nanoparticles By Chemical Reduction Method: Effect of Reducing Agent and Surfactant Concentration (2014, background): “According to Zielińska, Skwarek [11], only electrons with free electrons, especially Au, Ag, Cu and the alkali metals, possess plasmon resonance in the visible spectrum, which gives rise to such colours.”
- Influence of silver ion reduction on electrical modulus parameters of solid polymer electrolyte based on chitosan- silver triflate electrolyte membrane (2010, background): “However, only electrons with free electron posses plasmon resonance in the visible spectrum, which give rise to such intense color [39].”