Water-mediated recycling of gold, palladium and platinum using semimetallic TiS₂ and TaS₂ nanosheets.

ABSTRACT: The intensive and irreplaceable consumption of precious metals (PMs) including gold (Au), palladium (Pd) and platinum (Pt) in the electronic and catalysis industries, coupled with their scarcity in Earth's crust, demand innovative recycling solutions for PM sustainability. However, efforts to recycle PMs from leachates of their waste are frustrated by an unsatisfactory extraction capacity at low concentrations and remain predominantly focused on gold, leaving other PMs largely unexplored. We report the ultrahigh reductive recycling of PM ions and their simultaneous aqueous-phase deposition on semimetallic transition-metal dichalcogenides of TiS₂ and TaS₂ nanosheets_. Notably, TiS₂ shows unprecedentedly high extraction capacities of ∼8, 2.3 and 1.1

SUBMITTER: Wei J 

PROVIDER: S-EPMC12796814 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature