Recent advances in recognition, sensing and extraction of halides: 2019 onwards

Abstract

Over the past few decades, selective halide recognition has garnered widespread attention due to its crucial roles in the environmental and biological processes. However, synthetic receptors capable of binding halides in aqueous media remains a key challenge in modern supramolecular chemistry. Consequently, there have been hitherto a number of reviews published, which mainly focus on specific halides recognition based on colorimetric and/or fluorometric methods. This review article provides a comprehensive overview and highlights the effective strategies, particularly on receptors designing principles, mechanism, extraction, and real time applications for the halides recognition. It is expected that this review could facilitate advancements in the design and synthesis of receptors for recognizing and extracting halides in water.