Successful Synthesis of Gold Nanoparticles through Ultrasonic Spray Pyrolysis from a Gold(III) Nitrate Precursor and Their Interaction with a High Electron Beam.

ABSTRACT: Herein, we report for the first time the successful preparation of a gold(III) nitrate [Au(NO₃)₃] water-based precursor for use in a bottom-up ultrasonic spray pyrolysis (USP) process. Due to its limited solubility in water, the precursor was prepared under reflux conditions with nitric acid (HNO₃) as the solvent and ammonium hydroxide (NH₄OH) as a neutralizer. This precursor enabled the USP synthesis of gold nanoparticles (AuNPs) and the in situ formation of low concentrations of NO₂^- and NO₃^- ions, which were caught directly in deionized water in a collection system. These ions were proven to act as stabilizers for the AuNPs. Investigations showed that the AuNPs were monodispersed and spherically shap

SUBMITTER: Shariq M 

PROVIDER: S-EPMC6050464 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature