The uptake characteristics of Prussian-blue nanoparticles for rare metal ions for recycling of precious metals from nuclear and electronic wastes.

ABSTRACT: We have examined the uptake mechanisms of platinum-group-metals (PGMs) and molybdenum (Mo) ions into Prussian blue nanoparticles (PBNPs) in a nitric acid solution for 24-h sorption test, using inductively coupled plasma atomic emission spectroscopy, powder XRD, and UV-Vis-NIR spectroscopy in combination with first-principles calculations, and revealed that the Ru⁴⁺ and Pd²⁺ ions are incorporated into PBNPs by substitution with Fe³⁺ and Fe²⁺ ions of the PB framework, respectively, whereas the Rh³⁺ ion is incorporated into PBNPs by substitution mainly with Fe³⁺ and minorly with Fe²⁺ ion, and Mo⁶⁺ ion is incorporated into PBNPs by substitution with both Fe²⁺ and Fe³⁺ ions, with mainta

SUBMITTER: Watanabe S 

PROVIDER: S-EPMC8948275 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature