sponges

Chemistry

Graphene oxide and chitosan sponges found to be 10 times more efficient at removing gold from electronic waste

SEM images of Au3+ extraction and reduction by GO/chitosan sponge. Au3+ is displayed in yellow. Credit: Kou Yan A team of chemists and materials scientists from the National University of Singapore, in collaboration with colleagues from the University of Manchester in the UK and Guangdong University of Technology in China, have developed a type of sponge made of graphene oxide…