Ecofriendly Upcycling of Poly(vinyl chloride) Waste Plastics into Precious Metal Adsorbents.

ABSTRACT: Global interest in the recycling of precious metals (PMs) in various industrial sectors has spurred the exploration of high-performance PM adsorbents. Unfortunately, many adsorbents exhibit unsatisfactory PM adsorption performance and require complex fabrication protocols and toxic chemicals. Hence, further development of simple, efficient, and eco-friendly adsorbents is necessary. Herein, poly(vinyl chloride) (PVC) waste plastics are simply transformed into high-performance PM adsorbents via benign solvent treatment and hydrazination. The resultant hydrazine-functionalized PVC (h-PVC) plastic can effectively recover gold, palladium, and platinum from real-world leachates owing to its combined reduction and chemisorption mechanisms. The PM-adsorbed h-PVC plastic can be regenerated, calcine

SUBMITTER: Shin SS 

PROVIDER: S-EPMC12302614 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature