Janus Cellular Design Drives Solar-Powered Spatial Lithium Extraction and Water Co-Generation from Salt-Lake Brines.

IF 27.4 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials Pub Date : 2025-06-16 DOI:10.1002/adma.202502134

Yi Wang,Weinan Zhao,Zehua Peng,Yawei Feng,Jingyi Lu,Yuxin Song,Wanghuai Xu,Xiewen Wen,Zhongwei Chen,Zuankai Wang

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引用次数: 0

Abstract

Lithium plays a vital role in energy storage technologies, with global demand rapidly increasing. Current adsorption-based direct lithium extraction from salt-lake brines holds promise but suffers from low ion extraction efficiency due to sluggish intercalation kinetics and poor selectivity, necessitating repeated cycles that increase water and energy consumption. Here, a Janus cellular-structured solar-powered platform (JCSP) is developed for energy-efficient lithium extraction and sustainable water harvesting. The cellular platform features a symmetrical, multi-branched cantilever geometry with distinct upper and lower lattice architectures, where the lower lattice is functionalized with titanium-based porous adsorbents. This rational lattice design and functionalized adsorption interfaces enhance light absorption, sustain evaporative flow, and create an ion diffusion gradient for selective lithium extraction. Its cantilever configuration enables a self-flipping mechanism, preventing salt crystallization and ensuring long-term stability in high-salinity environments. This design boosts water evaporation efficiency to 3.85 kg m-2 h-1, increases lithium adsorption capacity to 43.5 mg g-1, and enhances Li+/Na+ and Li+/Mg2+ selectivity to 112 and 268, respectively, when treating multi-ionic hypersaline environment (20 wt% total dissolved salt). The JCSP system demonstrates stable long-term performance in water evaporation and lithium recovery under extreme conditions, providing a sustainable solution to global water scarcity and rising lithium demand.

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Janus Cellular设计驱动太阳能空间锂提取和盐湖盐水的水热电联产。

锂在能源存储技术中发挥着至关重要的作用，全球需求迅速增长。目前基于吸附的盐湖盐水锂直接萃取技术前景广阔，但由于插层动力学缓慢和选择性差，离子萃取效率较低，需要重复循环，增加了水和能源的消耗。在这里，Janus蜂窝结构太阳能平台（JCSP）被开发用于节能锂提取和可持续水收集。蜂窝平台具有对称的多分支悬臂几何形状，具有不同的上下晶格结构，其中下晶格由钛基多孔吸附剂功能化。这种合理的晶格设计和功能化的吸附界面增强了光吸收，维持了蒸发流动，并为选择性锂提取创造了离子扩散梯度。其悬臂结构可实现自翻转机制，防止盐结晶，并确保在高盐度环境下的长期稳定性。该设计在处理多离子高盐环境（总溶解盐的20%）时，将水蒸发效率提高到3.85 kg m-2 h-1，将锂吸附容量提高到43.5 mg g-1，将Li+/Na+和Li+/Mg2+的选择性分别提高到112和268。JCSP系统在极端条件下的水蒸发和锂回收方面表现出稳定的长期性能，为全球水资源短缺和锂需求增长提供了可持续的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Materials 工程技术-材料科学：综合

CiteScore

43.00

自引率

4.10%

发文量

2182

审稿时长

2 months

期刊介绍： Advanced Materials, one of the world's most prestigious journals and the foundation of the Advanced portfolio, is the home of choice for best-in-class materials science for more than 30 years. Following this fast-growing and interdisciplinary field, we are considering and publishing the most important discoveries on any and all materials from materials scientists, chemists, physicists, engineers as well as health and life scientists and bringing you the latest results and trends in modern materials-related research every week.