Trash into Treasure: Turning E-Waste and CO2 into Gold | Researchers at Cornell University have developed a sustainable technique to extract gold from electronic waste and repurpose it as a catalyst to convert carbon dioxide (CO₂) into valuable organic compounds. This method addresses e-waste challenges and contributes to CO₂ reduction efforts. Help with the transition when you #BoycottGold #BoycottGold4Yanomami
#News: Cornell researchers have developed a viable method to extract #gold from #ewaste. They can convert #CO2 into #gold, tackling both electronic waste and #GHG emissions. #BoycottGold @palmoildetect #BoycottGold4Yanomami https://wp.me/pcFhgU-6sX
Cornell University. (2025, January 2). New method turns e-waste to gold. ScienceDaily. Retrieved from https://www.sciencedaily.com/releases/2025/01/250102162300.htm
In a groundbreaking study, Cornell University researchers have introduced an eco-friendly method to extract gold from electronic waste (e-waste) and utilize it as a catalyst for converting carbon dioxide (CO₂) into useful organic materials. This dual-purpose approach offers a sustainable solution to two pressing environmental issues: e-waste accumulation and CO₂ emissions.
E-waste, comprising discarded electronic devices, is a rapidly growing environmental concern, with approximately 50 million tons generated annually worldwide. Notably, a ton of e-waste contains significantly more gold than a ton of mined ore, highlighting the potential for resource recovery. Traditional gold extraction methods involve hazardous chemicals like cyanide, posing environmental and health risks. The Cornell team’s method employs chemical adsorption using vinyl-linked covalent organic frameworks (VCOFs) to selectively capture 99.9% of gold ions and nanoparticles from e-waste without harmful substances.
Once recovered, the gold-loaded VCOFs serve as catalysts to transform CO₂—a major greenhouse gas contributing to climate change—into valuable organic compounds. This process not only mitigates CO₂ levels but also produces materials beneficial for various industrial applications. Lead researcher Amin Zadehnazari emphasised the environmental and practical benefits of this approach, stating, “By transforming CO₂ into value-added materials, we not only reduce waste disposal demands, we also provide both environmental and practical benefits. It’s kind of a win-win for the environment.”
This innovative method represents a significant advancement in technology, offering a promising avenue for addressing electronic waste and carbon emissions simultaneously. The research underscores the potential of integrating waste management with environmental remediation strategies to develop comprehensive solutions for global ecological challenges.
Cornell University. (2025, January 2). New method turns e-waste to gold. ScienceDaily. Retrieved from https://www.sciencedaily.com/releases/2025/01/250102162300.htm
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