The advancement of technology and the consequent increase in the production of electronic devices have led to a growing concern with electronic waste, and many become obsolete quickly, but even those who no longer work may contain valuable materials such as gold.
Swiss researchers develop innovative method to recover 22 carat gold on electronic home devices. See how.
About the study
A group of researchers at the Ethi University of Zurich, Switzerland, developed an innovative method to recover 22 carat gold from electronic waste.
The study, quoted by reveals that, through this technique, it was possible to extract 450 milligrams of gold from 20 old computers motherboards.
How does the extraction process work?
The technique is based on the use of an aerogel of amyloid protein nanofibrils (AF), a serum byproduct.
This aerogel acts as a selective sponge, absorbing only gold ions in a acid bath where electronic waste is dissolved.
The method allows to separate gold from the other metals present in electronic components, making the process more efficient and sustainable.
Future possibilities and environmental impact
Scientists are now exploring the feasibility of applying this technology to other electronic devices such as mobile phones, tablets and LED screens in search of more sources of precious metals.
The discovery may represent a significant advance in electronics recycling, reducing the need for gold mining and reducing the environmental impact associated with precious metals extraction.
Conclusion
In addition, it paves the way for new sustainable solutions in reusing electronic waste, promoting circular economy and reuse of valuable materials.
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