Synthesis of Gold and Copper Nanomaterials by Pulsed Laser Ablation Method

Abstract

The study included the effect of laser parameters (wavelength, number of pulses, and laser energy) on the structural and optical properties of pure gold particles, gold alloys, and copper nanoparticles that were prepared using a nadium-type pulsed laserNd-YAG type for high purity noble elements (gold, copper, and gold alloys) in distilled water, as pure gold and gold and copper alloys were used to prepare the above colloidal nanoparticles the structural properties of the prepared models were shown. The X-ray diffraction patterns were examined. (XRD) and scanning field electron microscope, while the behavior of the ultraviolet and visible absorption spectra of the samples prepared using (UV-Vis) X-ray diffraction assays showed the prepared nanoparticles at energy 660.m J. The number of pulses is 1000. All the prepared particles were of the face-centered cubic type. The XRD results also indicated the best prevailing directionality for plane (111) for all samples prepared from pure gold and gold alloys as well as copperFESEM assays showed the prepared particles at 1000 pulses and an ablation energy of 660 diameters. Au(83.7nm,13.8,50.7,56.5,35.4nm) and Cu (60.1nm) NPs were spherical as highlighted. EDS results for Au and Cu samples showed that the purity of the Au material was 100%, and the Cu was 100%. The results of UV-Vis spectroscopy of Au and Cu NPs showed that the colloidal Au and Cu NPs have their surface plasmon resonance for Au pure Au at (519 and 523 nm) and (Au –Cu) alloys, at 530, 580, 577, and 541 nm, respectively. These results were at the wavelength (532nm) of 1000 pulses. The results of the Dynamic Light scattering (DLS) for Au alloy NPs of different weights showed that the Au alloy NPs are non-toxic with the presence of some agglomerates in the solution, as the zeta potential showed that the Au alloys and Cu solutions are Unstable substances.