The increasing emission of electronic waste (e-waste) accelerates the depletion of natural metal resources and raises growing concerns for human health and environmental sustainability. Herein, the valuable metal recovery driven by the development of a circular economy has increasingly become a focal point in research. Recovering metals from e-waste can rationally allocate resources and significantly alleviate environmental issues; however, it remains challenging. Deep eutectic solvents (DESs) provide an ideal alternative for these separation and recovery processes due to their green properties. This article reviews recent advances in the recovery of metals from e-waste using DESs, encompassing spent battery materials, printed circuit boards, lamp phosphor waste, and end-of-life permanent magnets. Recovery approaches involving redox/coordination leaching, solvent extraction, precipitation, and electrodeposition are discussed within the framework of DESs' unique solvent characteristics, eco-design principles, and technology features. Finally, challenges facing this emerging recovery technology are outlined while future prospects are also envisioned.

中文翻译：

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使用低共熔溶剂从电子废物中可持续回收金属：进展、挑战和前景

电子废物（e-waste）排放量的增加加速了天然金属资源的消耗，并引起了人们对人类健康和环境可持续性的日益关注。其中，循环经济发展带动的有价金属回收日益成为研究热点。从电子垃圾中回收金属可以合理配置资源，显着缓解环境问题；然而，这仍然具有挑战性。低共熔溶剂 (DES) 因其绿色特性为这些分离和回收过程提供了理想的替代方案。本文回顾了使用 DES 从电子废物中回收金属的最新进展，包括废电池材料、印刷电路板、灯荧光粉废物和报废永磁体。在 DES 独特的溶剂特性、生态设计原理和技术特征的框架内讨论了涉及氧化还原/配位浸出、溶剂萃取、沉淀和电沉积的回收方法。最后，概述了这种新兴回收技术面临的挑战，同时也展望了未来的前景。