Abstract
Au nanoparticles have been prepared by the reaction of HAuCl4 and sodium diphenylamine sulfonate in the presence/absence of poly(vinylpyrrolidone)(PVP) at room temperature. The nanoparticles were characterized by Transmission electron microscopy (TEM), UV-Vis absorption spectrum. The research showed that the molar ratio of PVP/ HAuCl4 has effect on the size and the morphology of Au nanoparticles.
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