SYNTHESIS OF COPPER NANOPARTICLES USING OF HYDRAZINE IN MICELLAR SOLUTIONS OF SODIUM DODECYL SULPHATE
The influence of the synthesis conditions and the composition of the reaction medium on the size and morphology of nanoparticles (NPs) of copper in systems Cu(II) - N2H4 - sodium dodecyl sulphate (SDS) were investigated. The scanning electron microscopy (SEM) method shows: size of NPs varies in the range of30-90 nm, the average diameter is 40-45 nm and the shape of the low frequency copper is spherical. Dimensions of copper NPs (up to 400 nm) were determined. It was shown spectrophotometrically that the stabilization of copper dispersions that are resistant to oxidation, aggregation and sedimentation occurs at molar ratios of Cu(II) : N2H4 of 1:100; 1:200; 1:300 in micellar solutions of SDS. A hypsochrome shift of the absorption band of the surface plasmon resonance (SPR) of low-frequency copper is also established: 574 nm - 568 nm - 564 nm when the molar ratio of the Cu(II) : N2H4 is changing.