Quiz on Graphene Oxide Sponge Research

What is the primary function of the graphene oxide sponge developed by researchers in Singapore?

• To purify water

• To capture gold from electronic waste

• To generate electricity

• To create new electronic devices

Which two materials were combined to create the sponge-like material?

• Graphene oxide and chitosan

• Graphene and silicon

• Chitosan and cellulose

• Gold and copper

What is a significant advantage of the new sponge material compared to previous adsorbents?

• It is made from toxic materials

• It captures gold ions more efficiently

• It is heavier than traditional materials

• It requires high electrical input

What is the environmental concern associated with gold mining mentioned in the text?

• It produces no waste

• It requires toxic chemicals like mercury or cyanide

• It uses renewable resources

• It is a sustainable process

What did the researchers find about the adsorption capacity of their material?

• It is lower than previous materials

• It is astonishingly high

• It is equal to traditional methods

• It is only effective for gold(III) ions