Recent Strategies to Improve MOF Performance in Solid Phase Extraction of Organic Dyes

Abstract One of the modern areas of research in analytical chemistry is the development and use of new materials with higher selectivity and improved analytical performance in both sample preparation and separation science. Among them, metal‐organic frameworks (MOFs) are a potential alternative to current commercially available materials. Given the outstanding properties of MOFs and their ability to interact with various compounds, there has been an increasing number of studies in recent years showing their usefulness as sorbents in solid extraction (SPE) schemes. This review article aims to summarize the most recent (over the past 5 years) applications of MOFs in SPE of organic dyes. Particular attention has been paid to provide an overview of the MOF performance enhancement strategies currently being developed in this area. These include increasing the water stability of MOFs, functionalization of MOFs, defect engineering, design of charged MOFs, and modulation of non-covalent interactions. The issues of using MOF in the separation of specific dyes and in the analysis of real objects are considered. The ways of further research in the field of using MOF in SPE of organic dyes are outlined.