Evidence map›Paper›PMID 41374317›Full record

ArticleMaterials (Basel, Switzerland)2025

Efficient Removal of Fluorine from Leachate of Spent Lithium Iron Phosphate Calcine by Porous Zirconium-Based Adsorbent.

Shengqi Gong, Haijun Huang, Yizheng Wang, Fupeng Liu, Zaoming Chen, Tao Jiang, Ruzhen Peng, Jinliang Wang, Xirong Chen

Abstract read
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In one paragraph

Article in Materials (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Shengqi GongSchool of Metallurgical Engineering, Jiangxi University of Science and Technology, No. 1958 Kejia Avenue, Ganzhou 341000, China.
Haijun HuangJiangxi Ruida New Energy Technology Co., Ltd., No. 8, West Side of Yangguang Avenue, Industrial Park, Yichun 336100, China.
Yizheng WangSchool of Metallurgical Engineering, Jiangxi University of Science and Technology, No. 1958 Kejia Avenue, Ganzhou 341000, China.
Fupeng LiuSchool of Metallurgical Engineering, Jiangxi University of Science and Technology, No. 1958 Kejia Avenue, Ganzhou 341000, China.
Zaoming ChenSchool of Metallurgical Engineering, Jiangxi University of Science and Technology, No. 1958 Kejia Avenue, Ganzhou 341000, China.
Tao JiangSchool of Metallurgical Engineering, Jiangxi University of Science and Technology, No. 1958 Kejia Avenue, Ganzhou 341000, China.
Ruzhen PengSchool of Metallurgical Engineering, Jiangxi University of Science and Technology, No. 1958 Kejia Avenue, Ganzhou 341000, China.
Jinliang WangSchool of Metallurgical Engineering, Jiangxi University of Science and Technology, No. 1958 Kejia Avenue, Ganzhou 341000, China.
Xirong ChenSchool of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, No. 1958 Kejia Avenue, Ganzhou 341000, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During the recycling process of spent lithium-ion batteries (LIBs), there is a large number of fluoride ions in the leaching solution. These fluoride ions not only affect the quality of lithium products, but they also have adverse effects on the environment. Therefore, the efficient and deep removal of the characteristic pollutant fluoride ions is currently a hot topic in the field of recycling spent LIBs. In this study, a porous zirconium-based adsorbent was prepared and its adsorptive properties were characterized. Due to the excellent affinity between zirconium and fluorine, the zirconium-based adsorbent exhibited excellent adsorption performance in the leaching solution of spent lithium iron phosphate (SLFP) batteries. Under the optimal adsorption conditions, the adsorption capacity reached 113.78 mg/g, and it surpassed most commercial adsorbents. The zirconium-based adsorbent followed the Langmuir isotherm model for fluoride adsorption with correlation coefficients consistently exceeding 0.95, and exhibited pseudo-second-order kinetics, demonstrating goodness-of-fit values above 0.998. The negative Gibbs free energy change thermodynamically confirms the spontaneous nature of the adsorption process. The structure of the adsorbent before and after adsorption was characterized, and the adsorption mechanism was elaborated in detail. Furthermore, the influence of the coexistence of different anions on the adsorption of fluoride ions by zirconium-based adsorbent was studied in a real leaching solution from SLFP calcine. This study provides a feasible approach to deep defluoridation for leachate from spent LIBs, and has the advantages of simple operation and high adsorption capacity.

Indexed as

fluoride ionsspent lithium-ion batterieszirconium-based adsorbent

Identifiers

PMID41374317
PMCPMC12692901

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