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The synthesis and characterisation of highly stable and reproducible selenium nanoparticles
journal contributionposted on 13.03.2018, 00:00 by Sheeana Gangadoo, Dragana Stanley, RJ Hughes, RJ Moore, James Chapman
This paper describes a simple and reproducible solution phase synthesis approach for selenium nanoparticles by reducing selenium tetrachloride in the presence of ascorbic acid. An optimization study with poly (sodium 4-styrenesulfonate) produced stable and spherical narrowly size distributed nanoparticles (46 nm) which are considered highly monodisperse. The presence of selenium nanoparticles was confirmed by UV-visible spectroscopy for surface plasmon resonance (262 nm), elemental dispersive spectroscopy (11 KeV and 12.5 KeV) and size ranges characterized by dynamic light scattering (PDI = 0.04, the size range of optimized nanoparticles = 35 nm to 75 nm), and visualized using scanning and transmission electron microscopy.