Synergistic effect of citrate dispersant and capping polymers on controlling size growth of ultrafine copper nanoparticles
Source abstract
Abstract
In this paper, we studied the synergistic effect of sodium citrate dispersant and polyvinylpyrrolidone or polyvinylalcol capping polymer on controlling the size of copper nanoparticles (CuNPs) that were prepared by the chemical reduction method. The CuNPs were characterised by using ultraviolet–visible (UV–Vis) spectroscopy, transmission electron microscopy, and X-ray diffraction techniques. The size of the nanoparticles could be predicted via their UV–Vis absorbance. In the presence of capping polymers, the size of CuNPs was significantly changed, ranging from 2 ± 1 to 20 ± 7 nm with and without sodium citrate dispersant, respectively. Moreover, surface plasmon resonance of ultrafine CuNPs (2 nm in diameter) could be observed in the short wavelength region by using UV–Vis spectra. Our finding, could offer a new synthetic approach to the production of highly stable, small-sized CuNPs.
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Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Nanomaterials for catalytic reactions · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemical and Food Engineering, Lac Hong University, Dong Nai Province, Vietnam
,
Department of Chemistry, Hochiminh City University of Science, Ho Chi Minh City, Vietnam
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