Textile dyes are notorious for producing highly-colored effluents with high organic loadings, posing significant environmental concerns when discharged into the environment. These dyes not only devalue water but also disrupt aquatic photosynthesis and may even be toxic to humans and other organisms. To address this issue, the need to remove textile dyes from wastewater before disposal is of paramount importance. Among the various methods available for textile dye removal, adsorption has emerged as the best technology due to its simplicity in operation. It involves the migration of textile dyes from wastewater to active sites in an adsorbent material, driven by the concentration gradient between the solid-liquid interface. However, traditional adsorbents like activated carbon and zeolites have limited surface areas, resulting in low sorption capacities.

In recent years, metal-organic frameworks (MOFs) have emerged as outstanding candidates for adsorbent materials due to their ultrahigh surface area and porosity. MOFs are composed of metal ions coordinated with organic ligands, offering the advantage of easy fine-tuning through functionalization to enhance their sorption capacity further. Among the various MOFs, cyclodextrin-based MOFs (CD-MOFs) have gained popularity due to their sustainable synthesis from green precursors.

CD-MOFs have found numerous applications due to their ability to form host-guest complexes. However, their applicability in aqueous environments has been limited by their moisture instability.