The Properties of Nano-Gold Particles Synthesized by Ascorbic Acid With Acacia Gum and Sodium Hydroxide as Stabilizers

Dhelal Abdul Ghafoor; Rana M. Yas; Muna Ahmed Saeed

doi:10.24996/ijs.2019.60.10.7

Authors

Dhelal Abdul Ghafoor Department of Chemistry, College of Science, University of Anbar, Anbar, Iraq
Rana M. Yas Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq
Muna Ahmed Saeed Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq

DOI:

https://doi.org/10.24996/ijs.2019.60.10.7

Keywords:

gold nanoparticles, ascorbic acid, Acacia gum, sodium hydroxide

Abstract

In this work, biocompatible gold nanoparticles were synthesized by reducing the chloroauric acid with ascorbic acid as a reducing agent. Colloidal gold nanoparticles were stabilized through nontoxic acacia gum sodium hydroxide .Synthesizing gold nano particle is confirmed by the change in color of chloroauric acid from yellow to ruby red and brown color depending on the stabilizers. The gold nanoparticles were characterized by UV-Visible spectrophotometer. Where the peak of the absorbance of surface plasmon resonance (SPR) was observed between the wave length 526 and 535 nm. The results of zeta potential were found in rang (-19, -40 mv), AFM and TEM images show two different shapes, hexagonal and spherical and the size of gold nanoparticles between 21.5nm and 29nm.