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IIT Madras Recovers Metals From E-Waste Using Nature
31 Jan
Summary
- New eco-friendly solvents derived from natural compounds can recover metals from e-waste.
- Researchers used biodegradable deep eutectic solvents to dissolve copper and iron.
- This sustainable method produces valuable copper nanoparticles and pure copper metal.

Researchers at the Indian Institute of Technology Madras have developed an innovative, sustainable method for extracting valuable metals from electronic waste. This breakthrough process employs environmentally friendly deep eutectic solvents, which are biodegradable liquid mixtures derived from natural substances.
The team successfully created a green solvent using thymol, sourced from thyme, and capric acid. This solvent demonstrated an effective ability to dissolve copper metal, paving the way for its recovery.
Subsequently, trisodium citrate, a non-toxic chemical, was used for extraction. This method allows for the direct synthesis of copper nanoparticles, which have significant industrial and technological applications.




