Optimized Preparation of Silver Nanoparticles from Polyethylene Glycol and Formaldehyde
Nichrous Mlalila, Hulda Swai, Askwar Hilonga, Dattatreya M. Kadam
International Research Journal of Pure and Applied Chemistry · pp. 1–9 · Published 19 Dec 2016
10.9734/IRJPAC/2016/29657Abstract
The purpose of this work was to study the effect of various process and formulation parameters on size and shapes of silver nanoparticles (AgNPs) based on surface plasmon resonance (SPR). AgNPs were prepared by chemical reduction using formaldehyde (HCHO) as reducing agent and capped by polyethylene glycol (PEG). Effect of several processing variables including the concentration and volume of capping agent and reaction time is reported. The size of monodispersed nanoparticles was between 30-100 nm and was stable for three months at both room temperature and 4°C.
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