Graphene oxide and chitosan sponge for ultrafast and precise recovery of gold from electronic waste
Researchers at the National University of Singapore, working with colleagues from Manchester University and Guangdong University of Technology, have developed a sponge-like material made of graphene oxide and chitosan, that can be used to extract gold from electronic waste. In their recent study, the research team describes how they made their sponge and how well it worked during testing.
Previous research has shown that removing gold, silver and other metals from electronic equipment that is no longer useful, as a way to recycle such materials, is a difficult task that often results in low yields and the generation of a variety of toxic pollutants. In this new work, the team has found a way to remove the gold in a way that is cheaper and cleaner than conventional methods and much more efficient as well.
Source: http://www.graphene-info.com/graphene-oxide-and-chitosan-sponge-ultrafast-and-precise-recovery-gold
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