从海水中通过离子交换金属有机框架玻璃选择性地回收矿物质
Samraj Mollick1, Carmelo Morgante1, Anders K R Christensen1
1Department of Chemistry and Bioscience, Aalborg University, 9220 Aalborg East, Denmark.
Journal of the American Chemical Society
|February 16, 2026
概括
研究人员从金属有机框架玻璃开发了新材料,从海水中提取宝贵的矿物质,如和. 这种可持续的方法为清洁能源资源安全提供了高效率和快速动力学.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 过渡到清洁能源需要战略性材料,但传统采矿是不可持续的.
- 海水是丰富的矿物来源,但其复杂的离子组成阻碍了提取.
- 开发新型吸附剂对于可持续的矿产采购至关重要.
研究的目的:
- 创建高效的离子交换材料,从海水中提取矿物质.
- 在复杂的盐水环境中增强对Mg2+和Li+等目标离子的选择性.
- 在现实的海水条件下研究吸附机制和性能.
主要方法:
- 在金属有机框架玻璃上植入酸盐组.
- 应用精确的热和水处理来使材料具有功能.
- 在二元,三元和天然海水样本中测试材料性能,以检测离子吸收和选择性.
主要成果:
- 在复杂溶液中开发出具有增强Mg2+/Ca2+选择性的离子交换材料.
- 在10分钟内在天然海水中达到高Mg2+ (7-10 mg g-1) 和Li+ (2-3 mg g-1) 的吸收.
- 确定了一种双模式吸附机制 (离子交换和功能组相互作用),有助于提高性能.
结论:
- 新型酸盐功能化的MOF玻璃显示出对高效的海水矿物提取的承诺.
- 这些材料在现实条件下表现出高容量,快速动力学和出色的选择性.
- 这种方法为确保低碳未来的关键原材料提供了一个可持续的途径.
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