Abstract
Gold nanoparticles (NPs) are synthesized in four dilute micellar suspensions stabilized by cetyl trimethylammonium bromide (CTAB), and sodium dodecyl sulphate (SDS). The gold NPs are characterized by spectroscopic and ultrasound propagation methods. UV–visible spectral study indicated typical surface plasmon resonance (SPR) peaks in the region of 520–680nm for the four dilute micellar suspensions of gold NPs. The crystal structure is investigated by XRD study and the size of gold NPs is determined by high resolution transmission electron microscopic (HR-TEM) method. The morphology of the gold NPs synthesized in different micellar matrices is investigated by comparing computed density, ultrasound velocity of the nanosuspensions with experimental values. The acoustical properties of the nanosuspensions at different volume fractions depend on the nature of micellar matrix.
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