A Scalable, Bionic Gemini-Structured Solar Evaporator Enabling Ultrahigh-Efficiency and Selective Lithium Extraction

IF 19.9 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Functional Materials Pub Date : 2025-11-20 DOI:10.1002/adfm.202527626

Guoyan Yang, Zuozhu Yin, Xiangyu Han, Le Peng, Yingping Yang, Jilin Xu, Yongcun Ma, Zhen Hong, Yidan Luo, Mingshan Xue

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Abstract

Facing the global surge in lithium demand and the high energy consumption challenges of traditional extraction technologies. Inspired by the natural release mechanism of Ganoderma lucidum spores, this study designs a scalable biomimetic Gemini-structure solar-powered evaporation system (SPCZH) for efficient and selective lithium extraction. The system comprises a three-layer heterostructure: superhydrophobic photothermal aerogel layer (SPCP-a), lithium-selective ZIF-8/PSS composite membrane (PZP), and superhydrophilic hydrogel layer (PCP-h), achieving synergistic photothermal evaporation and ion sieving. Under 1 sun illumination, SPCZH achieves an evaporation rate of 2.98 kg m⁻² h⁻¹ with 93.79% energy efficiency. The 24 h lithium extraction capacity reaches 1353.5 mg·m⁻², demonstrating excellent Li⁺ selectivity. Outdoor experiments validate its dual capabilities of freshwater production and lithium enrichment in real-world environments. This study provides a practical technical approach for the large-scale, sustainable development of lithium resources using solar energy.

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一种可扩展的仿生双子星结构太阳能蒸发器，可实现超高效率和选择性锂提取

面对全球锂需求激增和传统提取技术高能耗的挑战。受灵芝孢子自然释放机制的启发，本研究设计了一种可扩展的仿生双子结构太阳能蒸发系统（SPCZH），用于高效、选择性地提取锂。该系统由三层异质结构组成：超疏水光热气凝胶层（SPCP-a）、锂选择性ZIF-8/PSS复合膜（PZP）和超亲水凝胶层（PCP-h），实现了协同光热蒸发和离子筛分。在1个太阳光照条件下，SPCZH蒸发速率为2.98 kg m−2 h−1，能量效率为93.79%。24 h的锂萃取量达到1353.5 mg·m−2，表明Li⁺具有良好的选择性。室外实验验证了其在现实环境中生产淡水和富集锂的双重能力。本研究为利用太阳能大规模可持续开发锂资源提供了一条实用的技术途径。

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来源期刊

Advanced Functional Materials 工程技术-材料科学：综合

CiteScore

29.50

自引率

4.20%

发文量

2086

审稿时长

2.1 months

期刊介绍： Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.