Abstract

Recovery of Gold Nanoparticles from Industrial Waste using Electronic Plates by a Novel Reducing Agent and Continuous Approach

Author(s): Alireza Fotovat*, Alireza Feizbakhsh

Electronic plates are among the common and exploitable sources of gold that are widely used in several types of industry. Gold (Au) element is an electronic particle that can be used in a variety of applications such as medicine, engineering, and biology by adjusting its surface functionality and particle size. A noteworthy feature of this material is the changes in its properties that occur with the variation in its particle size. In other words, by transferring its particle size from micrometer to nanometer, the surface-area-to-volume ratio increase such that new structural properties emerge, change, or improve. Various physical, chemical, and biological methods are used to make these particles. Among these methods, chemical and multi-material combinations are used as reductants. Tests such as Fourier-Transform Infrared (FTIR) spectroscopy, X-Ray Diffraction (XRD), and Field Emission Scanning Electron Microscopy (FESEM) have confirmed high-quality production and proper extraction of gold particles on a nanometer scale from electronic plates.