Recovery of [Au(CN) 2 ] − from gold cyanidation with graphene oxide as adsorbent

The recovery of gold cyanide complex Au(CN)2− from gold cyanidation with graphene oxide (GO) and GO hydrogel have been studied to explore the possibility of the application of GO or GO hydrogel in gold cyanidation process for extracting gold. The study was performed on the adsorption of artificial Au(CN)2− aqueous solution on GO and GO hydrogel. The adsorption results, as well as the SEM-EDS, AFM and XPS, demonstrated that GO was a better...