ArticleMaterials (Basel, Switzerland)2024
Crown Ether-Grafted Graphene Oxide-Based Materials-Synthesis, Characterization and Study of Lithium Adsorption from Complex Brine.
Article in Materials (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Functionalization of graphene oxide with cinnamic acid and lignin for enhanced pesticides adsorption for water purification.RSC advances · 2026Article
- Application of a Zirconium-Titanium Phosphate-Phosphonate Composite Sorbent for Purification of Lithium-Rich Eluate Obtained by Direct Lithium Extraction Technology.Materials (Basel, Switzerland) · 2026Article
- Graphene and Other 2D Layered Nanomaterials and Hybrid Structures: Past, Present, and Future Directions.Materials (Basel, Switzerland) · 2026Article
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Abstract
Direct lithium extraction from unconventional resources requires the development of effective adsorbents. Crown ether-containing materials have been reported as promising structures in terms of lithium selectivity, but data on adsorption in real, highly saline brines are scarce. Crown ether-grafted graphene oxides were synthesized using 2-hydroxymethyl-12-crown-4, hydroxy-dibenzo-14-crown-4 and epichlorohydrin as a source of anchoring groups. The obtained carbonaceous materials were used to prepare chitosan-polyvinyl alcohol composites. The prepared materials (and intermediate products) were characterized using FTIR, XRD, Raman spectroscopy and SEM-EDS methods. Adsorption tests were performed in a pure diluted LiCl solution ([Li] = 200 mg/kg) as well as in a real, highly saline oilfield brine ([Li] ≈ 220 mg/kg), and the distribution coefficients (K
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