使用电化学膜反应器从酸性E-废物浸出物中高效的Au回收
Ruixin Chen1, Weijian Duan1, Yihui Zhu1
1The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
Water research
|December 24, 2025
概括
这项研究介绍了一种新的电化学反应器,用于从电子废物中回收黄金,大大减少能源使用并提高效率. 这种新方法为贵金属回收提供了一种可持续且具有成本效益的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 环境科学 环境科学
背景情况:
- 从电子废物 (电子废物) 液中电化学回收黄金 (Au) 面临诸多挑战,包括高能耗,低效率和选择性差.
- 现有的方法往往由于恶劣的酸性条件而遭受阳极不稳定.
研究的目的:
- 开发一个改进的电化学反应堆,以有效和选择性地从电子废物漏物中回收黄金.
- 在能源需求和稳定性方面克服传统电化学反应堆的局限性.
主要方法:
- 一个用铜纳米粒子 (Cu/eNMR) 修改的新型电化学膜反应器被设计和测试.
- 性能根据黄金回收率,单位能耗,选择性和阳极稳定性进行评估.
- 机械学研究调查了黄金回收途径,并进行了技术经济分析.
主要成果:
- 与传统反应堆相比,Cu/eNMR实现了完全的黄金回收,能源消耗显著降低 (0.13 kWh/gAu),比0.36 kWh/gAu).
- 即使在其他金属离子 (Cu2+,Ni2+) 的存在下,也观察到对黄金的高选择性.
- 该反应堆表现出由于水溶液的物理分离而提高了阳极稳定性.
结论:
- 开发的Cu/eNMR提供了一种高效,选择性和稳定的方法,用于从电子废物中电化学回收黄金.
- 这项技术为从电子垃圾中回收贵金属提供了一种具有成本效益和可持续性的方法.
更多相关视频
07:28An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
7.8K
11:14Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
12.8K
相关概念视频
01:08Electrodeposition
1.2K
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
Electrodeposition can...
1.2K
01:03Precipitation Gravimetry
13.0K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
13.0K