Bifunctional MOFs possessing both proton conductivity and fluorescence detection capabilities

Abstract

Metal–organic frameworks (MOFs) are sophisticated crystalline substances that exhibit porosity, consisting of clusters of metals and organic ligands capable of multiple coordination. These structures exhibit high conductivity owing to the transfer of ions or protons between the main framework and guest structure. Additionally, their structural flexibility, ability to adapt pore sizes, and unique fluorescence properties offer considerable advantages in the domain of recognition and detection. This paper presents a comprehensive summary and discussion on the novel finding that MOFs possess bifunctionality for both proton conduction and fluorescence detection. Furthermore, considerable studies have been undertaken to explore the utilization of MOFs in proton conduction and the fluorescence detection of various substances, including pollutants, small molecules, anions, cations, and other chemical compounds.