Nature Communications·· 11 小时前精选AI 评分78
通过交联调控实现亚纳米孔径的膜在卤水中获得6454的Li+/Mg2+分离因子
Scalable crosslinking-regulated membranes with ultra-high Li+/Mg2+ selectivity for lithium recovery from brines
AI 导读
研究通过调控成膜过程中的交联程度，在Li+/Mg2+分离所需的窄窗口内实现亚纳米孔径控制。在电渗析条件下，该膜在Mg/Li质量比140时Li+/Mg2+分离因子最高达6454；在Mg/Li=87的未处理天然盐湖卤水中仍保持1200以上。团队制备了25 cm×35 cm膜，并在15天重复运行中保持稳定性能。
推荐理由
通过调控交联程度把膜孔径压到亚纳米窗口，在Mg/Li=140的卤水中实现6454的Li+/Mg2+分离因子，并放大到25 cm×35 cm膜组件。
创新点
把交联程度作为成膜过程中的调控变量，将孔径精确控制在亚纳米分离窗口内，从而在未经处理的天然卤水中同时兼顾高分离因子与放大制备。
图表、补充材料与最终表述以原文为准。阅读原文
来源：Nature Communications · doi.org
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