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2D materials

2D materials

Eco-friendly graphene composite recovers gold from e-waste

24 Oct 2024 Isabelle Dumé
A scanning electron microscope image of Au3+ extraction and reduction by the graphene oxide/chitosan sponge. The Au3+ appears as a yellow blob stuck to a pink-tinged, lumpy background
Gold trapper: Scanning electron microscope image of Au3+ extraction and reduction by graphene oxide/chitosan sponge; Au3+ is shown in yellow. (Courtesy: Kou Yang)
A new type of composite material is 10 times more efficient at extracting gold from electronic waste

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Isabelle Dumé is a contributing editor to Physics World
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