Abstract
The size and the concentration of the gold nanoparticles (GNPs)synthesized in double distilled deionized water (DDDW) have beenfound to be affected by the laser energy and the number of pulses.The absorption spectra of the nanoparticles DDDW, and thesurface plasmon resonance (SPR) peaks were measured, and found tobe located between (509 and 524)nm using the UV- Visspectrophotometer. SPR calculations, images of transmissionelectron microscope, and dynamic light scattering (DLS) methodwere used to determine the size of GNPs, which found to be rangedbetween (3.5 and 27) nm. The concentrations of GNPs in colloidalsolutions found to be ranged between (37 and 142) ppm, andmeasured by atomic absorption spectroscopy (AAS).
Highlights
Nanotechnology begins as a scientific mode in 1957 by a suggestion by R
Materials and methods Gold NPs were synthesized by pulsed laser ablation of gold target in double distilled water distilled deionized water (DDDW)
The absorbance spectra of the nanoparticles solution and the surface plasmon resonance (SPR) peaks have been measured by UV-Vis spectrophotometer type (SP8001), the concentrations of NPs in the solutions were measured with atomic absorption spectrometer (AAS) type (GBC 933 pulse)
Summary
Nanotechnology begins as a scientific mode in 1957 by a suggestion by R. Key words Pulsed laser ablation, gold nanoparticles, synthesis of GNPs, surface plasmon resonance.
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