Synthesis and characterization of gold nanoparticles by aluminum as a reducing agent

الملخص EN

The synthesis of nanoparticles (GNPs) from the reduction of HAuCl4 .3H2O by aluminum metal was obtained in aqueous solution with the use of Arabic gum as a stabilizing agent.

The GNPs were characterized by TEM, AFM and Zeta potential spectroscopy.

The reduction process was monitored over time by measuring ultraviolet spectra at a range of λ 520-525 nm.

Also the color changes from yellow to ruby red, shape and size of GNP was studied by TEM.

Shape was spherical and the size of particles was (12-17.5) nm.

The best results were obtained at pH 6.