Issue 21, 2024

Supramolecular chemistry of liquid–liquid extraction

Abstract

Liquid–Liquid Extraction (LLE) is a venerable and widely used method for the separation of a targeted solute between two immiscible liquids. In recent years, this method has gained popularity in the supramolecular chemistry community due to the development of various types of synthetic receptors that effectively and selectively bind specific guests in an aqueous medium through different supramolecular interactions. This has eventually led to the development of state-of-the-art extraction technologies for the removal and purification of anions, cations, ion pairs, and small molecules from one liquid phase to another liquid phase, which is an industrially viable method. The focus of this perspective is to furnish a vivid picture of the current understanding of supramolecular interaction-based LLE chemistry. This will not only help to improve separation technology in the chemical, mining, nuclear waste treatment, and medicinal chemistry sectors but is also useful to address the purity issue of the extractable species, which is otherwise difficult. Thus, up-to-date knowledge on this subject will eventually provide opportunities to develop large-scale waste remediation processes and metallurgy applications that can address important real-life problems.

Graphical abstract: Supramolecular chemistry of liquid–liquid extraction

Article information

Article type
Perspective
Submitted
07 Feb 2024
Accepted
27 Apr 2024
First published
30 Apr 2024
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2024,15, 7824-7847

Supramolecular chemistry of liquid–liquid extraction

S. Pramanik, A. S. M. Islam, I. Ghosh and P. Ghosh, Chem. Sci., 2024, 15, 7824 DOI: 10.1039/D4SC00933A

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