Metal organic frameworks and their composites as effective tools for sensing environmental hazards: An up to date tale of mechanism, current trends and future prospects

A bifunctionalised Pb-based MOF for iodine capture and dye removal

“…7 Among the methods mentioned above, the adsorption technique is preferable due to its cost-effectiveness, smooth operation, and ecofriendliness. 8 Recently, metal-organic frameworks (MOFs) have emerged as potential candidates to adsorb radioactive iodine and dyes. 9,10 The presence of a secondary building unit (SBU) affords a potential synthetic strategy to design a variety of MOFs with robust and multi-purpose properties.…”

Neomangiferin defect-engineering ZIF-8 for visually differentiating aprotic/protic solvents and real-time sensing trace water

“…They showcase tremendous applications in sensing, catalysis, adsorption, gas storage, and drug delivery due to their intriguing properties such as high surface areas, exceptional porosity, diverse structures, flexible framework, easy functionalization, and excellent thermal stability. 1 Luminescent MOFs (LMOFs) combine the unique host-guest interactions of MOFs with controllable photophysical and photochemical properties, which are beneficial for fluorescent sensing with fast response, superior sensitivity, excellent selectivity, reversible and recyclable sensing properties. 1,2 Generally, the fluorescence emission of LMOFs comes from building blocks with independent and/or synergistic actions: (i) conjugated organic ligands (e.g., porphyrin, naphthalimide, anthracene, carbazole), 3,4 (ii) lanthanide metal ions (e.g., Eu 3+ , Tb 3+ , and Ln 3+ ), 5,6 and (iii) encapsulated luminescent guest materials (e.g., organic dyes, carbon dots).…”

“…1 Luminescent MOFs (LMOFs) combine the unique host-guest interactions of MOFs with controllable photophysical and photochemical properties, which are beneficial for fluorescent sensing with fast response, superior sensitivity, excellent selectivity, reversible and recyclable sensing properties. 1,2 Generally, the fluorescence emission of LMOFs comes from building blocks with independent and/or synergistic actions: (i) conjugated organic ligands (e.g., porphyrin, naphthalimide, anthracene, carbazole), 3,4 (ii) lanthanide metal ions (e.g., Eu 3+ , Tb 3+ , and Ln 3+ ), 5,6 and (iii) encapsulated luminescent guest materials (e.g., organic dyes, carbon dots). 7 In recent years, a series of LMOFs have been fabricated and successfully synthesized by designing elaborate and rigid organic ligands, metal ions/ clusters, and guest materials to detect multiple targets.…”

“…7 In recent years, a series of LMOFs have been fabricated and successfully synthesized by designing elaborate and rigid organic ligands, metal ions/ clusters, and guest materials to detect multiple targets. 1,[8][9][10] Although tremendous advances have been achieved, the rational design and exploration of unique and robust LMOFs with new mechanisms, multidimensional applications, and superior stability remain a huge challenge.…”

“…1 Luminescent MOFs (LMOFs) combine the unique host–guest interactions of MOFs with controllable photophysical and photochemical properties, which are beneficial for fluorescent sensing with fast response, superior sensitivity, excellent selectivity, reversible and recyclable sensing properties. 1,2 Generally, the fluorescence emission of LMOFs comes from building blocks with independent and/or synergistic actions: (i) conjugated organic ligands ( e.g. , porphyrin, naphthalimide, anthracene, carbazole), 3,4 (ii) lanthanide metal ions ( e.g.…”