Flexible luminescent non-lanthanide metal–organic frameworks as small molecules sensors

Abstract

Toxic, carcinogenic, and hazardous materials are omnipresent, generally obtained by anthropogenic activities, industrial activities, aerobic and anaerobic degradation of waste materials and are harmful to human health and environment. Thus,...

A luminescent 2,1,3-benzoxadiazole-decorated zirconium-organic framework as an exceptionally sensitive turn-on sensor for ammonia and aliphatic amines in water

“…S22, ESI †). It should be noted that ammonia sensing using metal-organic frameworks is still in the early stage of development 40 and most applications involve chemiresistive detection of NH 3 in gas mixtures (Table S2, ESI †). To the best of our knowledge, only three reports demonstrate the electrical or luminescent responses of MOFs to ammonia in aqueous medium and the detection limit observed in our work surpasses the best reported values by an order of magnitude (Table 1).…”

Recent progress on MOF-based optical sensors for VOC sensing

“…LMOFs-based gas/vapour sensing has been extensively investigated and comprehensively reviewed recently. 141,149,151,152,[154][155][156][157][158][159] Similar to chromism-based sensing, finely tuning the physical and chemical properties of LMOFs, such as introducing functional groups, tuning the hydrophobicity/hydrophilicity, the Lewis acidity/basicity, or playing with steric hindrance effect, can improve selectivity. 24,160 Li et al provided their comprehensive insights on the rational designs of LMOFs as functional chemosensors, along with notable considerations of practical parameters for seeking real-time applicability.…”

A dual-function Cd-MOF with high proton conduction and excellent fluorescence detection of pyridine

“…In 2021, Chand et al 29 prepared a luminescent sensor (Co-MOF) that can selectively detect Al( iii ) by a mixed-ligand synthesis approach. Moreover, there are a few reports on the application of luminescent MOFs in the detection of toxic and harmful organic small molecules (allyl alcohol, 30 acetone, 31 acetylacetone, 32 pyridine, toluene, etc .). Pyridine and its derivatives can be used as solvents and intermediates in the production of pesticides, dyes, additives, pharmaceuticals, etc ., and are important raw materials in chemical production.…”