Impact of adsorption inhibitory phenomenon of microplastics on lithium recovery using adsorbents from liquid lithium resources

IF 5.9 3区工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY

Journal of Industrial and Engineering Chemistry Pub Date : 2025-04-14 DOI:10.1016/j.jiec.2025.04.022

Seungeun Lee , Hyeongjun Park , Minho Lee , Gukhwa Hwang

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引用次数: 0

Abstract

Seawater contains an estimated 230 billion metric tons of dissolved lithium, representing a significant and stable potential resource to support a diverse lithium supply. However, the influence of microplastics on lithium recovery has not been previously explored despite their pervasive presence in marine environments. This study investigates the effects of carboxylate-modified polystyrene (PS), a commonly found microplastic, on lithium recovery using the synthesized adsorbent H_1.6Mn_1.6O₄. Various concentrations and particle sizes of PS were introduced into the adsorption system to evaluate their impact on lithium adsorption. The results indicate that the adsorption performance of H_1.6Mn_1.6O₄ was significantly hindered by the presence of PS, with a notable decline in efficiency observed as PS concentration and particle size increased. The inhibitory effects became pronounced 12 h after the initiation of the experiment. These findings reveal potential technical and environmental challenges in lithium recovery from seawater, emphasizing the need to consider microplastic contamination. This study provides valuable insights for advancing sustainable lithium extraction technologies and guiding future research efforts.

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微塑料吸附抑制现象对液态锂资源中吸附剂回收锂的影响

据估计，海水中含有2300亿吨溶解锂，这是一种重要而稳定的潜在资源，可以支持多样化的锂供应。然而，尽管微塑料在海洋环境中普遍存在，但它们对锂回收的影响尚未得到探讨。本文研究了羧酸改性聚苯乙烯（PS）这种常见的微塑料在合成吸附剂H1.6Mn1.6O4的情况下对锂回收的影响。在吸附体系中引入不同浓度和粒径的PS，考察其对锂吸附的影响。结果表明，PS的存在明显阻碍了H1.6Mn1.6O4的吸附性能，随着PS浓度和粒径的增加，吸附效率明显下降。实验开始12 h后，抑制效果明显。这些发现揭示了从海水中回收锂的潜在技术和环境挑战，强调了考虑微塑料污染的必要性。该研究为推进可持续锂提取技术和指导未来的研究工作提供了有价值的见解。

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

Journal of Industrial and Engineering Chemistry 工程技术-工程：化工

CiteScore

10.40

自引率

6.60%

发文量

639

审稿时长

29 days

期刊介绍： Journal of Industrial and Engineering Chemistry is published monthly in English by the Korean Society of Industrial and Engineering Chemistry. JIEC brings together multidisciplinary interests in one journal and is to disseminate information on all aspects of research and development in industrial and engineering chemistry. Contributions in the form of research articles, short communications, notes and reviews are considered for publication. The editors welcome original contributions that have not been and are not to be published elsewhere. Instruction to authors and a manuscript submissions form are printed at the end of each issue. Bulk reprints of individual articles can be ordered. This publication is partially supported by Korea Research Foundation and the Korean Federation of Science and Technology Societies.