Iron-based metal–organic frameworks and their derived materials for photocatalytic and photoelectrocatalytic reactions

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 499, P. 215538 - 215538

Published: Nov. 1, 2023

Language: Английский

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From classic to cutting-edge solutions: A comprehensive review of materials and methods for heavy metal removal from water environments

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 319, P. 100446 - 100446

Published: May 31, 2024

Waterborne heavy metals pose significant threats to both the environment and public health, causing neurological damage, developmental disorders, organ cancer. It is essential address contamination of various water bodies by these hazardous substances due their persistent nature lack biodegradability. This review thoroughly explores traditional modern strategies utilized remedy sources contaminated with evaluates effectiveness potential scalability each method. A literature survey reveals several effective for removing from water: adsorption, flotation, ion exchange, chemical precipitation, membrane-based filtration, coagulation, flocculation, phytoremediation, electrochemical methods. In our examination, we discussed agents/adsorbents used, efficiency removal technique, operating conditions, intrinsic advantages disadvantages approach. Summarizing key findings, noted a focus on adsorption techniques; however, challenges include selectively diverse ions, prolonged retention times, cycling stability. While membrane methods are practical, issues like large-volume sludge formation exist. Although electrical-based appear promising, solutions needed industrial-scale separation as well. Prioritizing real wastewater samples in studies crucial. Future research should emphasize eco-friendly, cost-effective

Language: Английский

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A Highly Chemically Robust 3D Interpenetrated MOF Heterogeneous Catalyst for the Synthesis of Hantzsch 1,4‐Dihydropyridines and Drug Molecules

Small, Journal Year: 2024, Volume and Issue: 20(25)

Published: Jan. 8, 2024

Abstract Metal–organic frameworks (MOFs) have attracted immense attention as efficient heterogeneous catalysts over other solid catalysts, however, their chemical environment instability often limits catalytic potential. Herein, utilizing a flexible unexplored tetra‐acid ligand and employing the mixed approach, 3D interpenetrated robust framework is strategically developed, IITKGP‐51 (IITKGP stands for Indian Institute of Technology Kharagpur), which retained its crystallinity wide range pH solution (4–12). Having ample open metal sites (OMSs), explored catalyst in one‐pot Hantzsch condensation reaction, with low loading broad substrates. The synthesis drug molecules remains one most significant emergent areas organic medicinal chemistry. Considering such practical utility, biologically important Nemadipine B Nifedipine (calcium channel protein inhibitor) are synthesized first time by using this fully characterized via SC‐XRD spectroscopic methods. This report inaugurates usage MOF material molecules.

Language: Английский

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Precision-Engineered Construction of Proton-Conducting Metal–Organic Frameworks

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Dec. 11, 2024

Proton-conducting materials have attracted considerable interest because of their extensive application in energy storage and conversion devices. Among them, metal-organic frameworks (MOFs) present tremendous development potential possibilities for constructing novel advanced proton conductors due to special advantages crystallinity, designability, porosity. In particular, several design strategies the structure MOFs opened new doors advancement MOF conductors, such as charged network construction, ligand functionalization, metal-center manipulation, defective engineering, guest molecule incorporation, pore-space manipulation. With implementation these strategies, proton-conducting developed significantly profoundly within last decade. Therefore, this review, we critically discuss analyze fundamental principles, methods targeted at improving conductivity through representative examples. Besides, structural features, conduction mechanism behavior are discussed thoroughly meticulously. Future endeavors also proposed address challenges practical research. We sincerely expect that review will bring guidance inspiration further motivate research enthusiasm materials.

Language: Английский

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Deactivation of porphyrin metal-organic framework in advanced oxidation process: Photobleaching and underlying mechanism

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 346, P. 123746 - 123746

Published: Jan. 16, 2024

Language: Английский

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Recent advances and potential applications for metal-organic framework (MOFs) and MOFs-derived materials: Characterizations and antimicrobial activities

Biotechnology Reports, Journal Year: 2024, Volume and Issue: 42, P. e00837 - e00837

Published: March 20, 2024

Microbial infections, particularly those caused by antibiotic-resistant pathogens, pose a critical global health threat. Metal-Organic Frameworks (MOFs), porous crystalline structures built from metal ions and organic linkers, initially developed for gas adsorption, have emerged as promising alternatives to traditional antibiotics. This review, covering research up 2023, explores the potential of MOFs MOF-based materials broad-spectrum antimicrobial agents against bacteria, viruses, fungi, even parasites. It delves into historical context agents, recent advancements in MOF research, diverse synthesis techniques employed their production. Furthermore, review comprehensively analyzes mechanisms action which combat various microbial threats. By highlighting vast MOFs, methods, effectiveness this study underscores novel solution growing challenge antibiotic resistance.

Language: Английский

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Adsorption and Separation by Flexible MOFs

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Flexible metal–organic frameworks (MOFs) offer unique opportunities due to their dynamic structural adaptability. This review explores the impact of flexibility on gas adsorption, highlighting key concepts for storage and separation. Specific examples demonstrate principal effectiveness flexible in enhancing uptake working capacity. Additionally, mixed adsorption separation mixtures are reviewed, showcasing potential selective The also discusses critical role single isotherms analysis conditions designing experiments. Advanced combined characterization techniques crucial understanding behavior MOFs, including monitoring phase transitions, framework–guest guest–guest interactions. Key challenges practical application adsorbents addressed, such as kinetics switching, volume change, crystal damage during transitions. Furthermore, effects additives shaping “slipping off effect” discussed. Finally, benefits transitions beyond improved capacity selectivity outlined, with a particular focus advantages intrinsic thermal management. highlights using MOFs technologies, offering insights future research application.

Language: Английский

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A Water‐Stable Cationic SIFSIX MOF for Luminescent Probing of Cr₂O₇²⁻ via Single‐Crystal to Single‐Crystal Transformation

Small, Journal Year: 2023, Volume and Issue: 19(47)

Published: July 27, 2023

The sensing and monitoring of toxic oxo-anion contaminants in water are significant importance to biological environmental systems. A rare hydro-stable SIFSIX metal-organic framework, SiF6 @MOF-1, {[Cu(L)2 (H2 O)2 ]·(SiF6 )(H2 O)}n , with exchangeable SiF62- anion its pore is strategically designed synthesized, exhibiting selective detection Cr2 O72- an aqueous medium having high sensitivity, selectivity, recyclability through fluorescence quenching phenomena. More importantly, the recognition ion exchange mechanism unveiled rarely explored single-crystal-to-single crystal (SC-SC) fashion well-resolved structures. thorough SC-SC study interfering anions (Cl- F- I- NO3- HCO3- SO42- SCN- IO3- ) revealed no such transformations take place, as per line studies. Density functional theory calculations that despite a lesser binding affinity, shows strong orbital mixing large driving forces for electron transfer than thus enlightens mechanism. This work inaugurates usage MOF toward application domain under where hydrolytic stability prime concern their plausible implementation sensor materials.

Language: Английский

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Spatiotemporal manipulation metal–organic frameworks as oral drug delivery systems for precision medicine

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 502, P. 215615 - 215615

Published: Dec. 20, 2023

Language: Английский

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Highly Robust Metal–Organic Framework for Efficiently Catalyzing Knoevenagel Condensation and the Strecker Reaction under Solvent-Free Conditions

Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 62(32), P. 12989 - 13000

Published: Aug. 2, 2023

Metal–organic frameworks (MOFs) have been recognized as one of the most promising porous materials and offer great opportunities for rational design new catalytic solids having structural diversity functional tunability. Despite numerous inherent merits, their chemical environment instability limits practical usage demands further exploration. Herein, by employing mixed-ligand approach, we designed developed a robust 3D Co-MOF, [Co2(μ2-O)(TDC)2(L)(H2O)2]·2DMF (H2TDC = 2,5-thiophenedicarboxylic acid, L 3,3′-azobispyridine), IITKGP-50 (IITKGP stands Indian Institute Technology Kharagpur), which exhibited excellent framework robustness not only in water but also wide range aqueous pH solutions (pH 2–12). Taking advantage superior presence high-density open metal sites, was explored catalyzing two-component Knoevenagel condensation reaction three-component Strecker reactions. Moreover, to verify size selectivity IITKGP-50, smaller bulkier substrates comparison with MOF's pore cavity (8.1 × 5.6 Å2) were employed, relatively lesser conversions sterically aldehyde derivatives confirmed that cycle occurs inside cavity. The easy scalability, lower catalyst loading compared benchmark MOFs, magnificent conversion rate over substrates, recyclability without significant performance loss made heterogeneous candidate.

Language: Английский

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