用于锂萃取的新型压印多孔液体

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2024-08-28 DOI:10.1002/aic.18603

Dagang Qi, Shuai Zheng, Dongyu Jin, Zhiyong Zhou, Yuming Tu, Chencan Du, Zhongqi Ren

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引用次数: 0

摘要

多孔液体（PL）是一种新型材料，它结合了多孔固体和液体流动性的优点。在这项研究中，我们提出了一种印迹多孔液体（IPL），以印迹聚合物为多孔框架，以 TOP + FeCl3 混合物为立体受阻溶剂。量子化学计算和表征结果表明，IPL 中存在未被占用的孔隙结构。所制备的 IPL 在锂萃取方面表现出优异的选择性吸附和萃取性能，锂/镁分离系数达到 1540，单级 Li+ 萃取效率达到 86%。即使经过八次循环，锂+提取效率仍保持在 84% 以上。分析表征和量子化学计算阐明了 IPL 中萃取和吸附之间的耦合机制，从而实现了高效的锂萃取。通过将压印技术与 PLs 相结合，IPL 扩展了 PLs 材料的现有框架，同时为设计功能性溶剂提供了新的见解。

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A novel imprinted porous liquid for lithium extraction

Porous liquids (PLs) are a novel material that combines the advantages of porous solids and liquid fluidity. In this study, we propose an imprinted porous liquid (IPL) with imprinted polymers as the porous framework and a mixture of TOP + FeCl₃ as sterically hindered solvents. Quantum chemical computations and characterization results demonstrate the presence of unoccupied pore structure in IPLs. The prepared IPLs exhibit excellent selective adsorption and extraction performance for lithium extraction, achieving a Li/Mg separation factor of 1540 and a single-stage Li⁺ extraction efficiency of 86%. The Li⁺ extraction efficiency remains above 84% even after eight cycles. Analytical characterization along with quantum chemical computations elucidates the mechanism underlying the coupling between extraction and adsorption in IPLs, enabling efficient lithium extraction. By combining imprinting technology with PLs, IPLs expand upon existing frameworks for PLs materials while providing new insights for designing functional solvents.

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来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.