Adsorptive removal of toxic heavy metals from aquatic environment by metal organic framework (MOF): A review

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 70, P. 106867 - 106867

Published: Jan. 5, 2025

Language: Английский

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Efficient removal of environmentally hazardous heavy metal ions from water by NH2-MIL-101-Fe and MOF-808-EDTA based polyether sulfone adsorbents

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154688 - 154688

Published: Aug. 17, 2024

Language: Английский

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Cysteine-Functionalized Magnetic Manganese-Based MOF Composite for Enhanced Removal of Pb²⁺ from Water

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 21, 2025

Among the multitude of toxic water pollutants, Pb2+ poses a significant threat to human health. A novel magnetic manganese-based metal-organic framework (Mn-MOF) composite, MFCys, was designed for selective removal Pb2+. MFCys readily synthesized through postsynthetic modification Mn-MOF/Fe3O4 (MF) with l-cysteine (l-Cys), utilizing prospective Mn-MOF, {[Mn2(tzpa)(OH)(H2O)2]·DMA}n. demonstrated superior adsorption Pb2+, reaching equilibrium within 2 h compared Mn-MOF and MF. The Langmuir model indicated that underwent chemisorption Meanwhile, process aligned pseudo-second-order (PSO) kinetic model, confirming adsorbed by mainly monolayer chemisorption. Thermodynamic results revealed spontaneous endothermic. Moreover, even in presence competing Cd2+, Zn2+, Ca2+, Mg2+, Na+, K+, exhibited exceptional selectivity due electrostatic interaction electronic coupling effect between enabled easy separation from suspension 1 min using an external magnet recycling. retained 98.0% initial capacity after five cycles, demonstrating excellent reusability. Notably, displayed simulated lead-acid battery wastewater, retaining 98.3% its pristine cycles. These findings suggest easily separated composite has promising application prospects wastewater treatment.

Language: Английский

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Smartphone-enabled mesoporous silica nanotube chemosensors for quick and selective mercury detection in water and cosmetics

Arabian Journal of Chemistry, Journal Year: 2024, Volume and Issue: 17(10), P. 105984 - 105984

Published: Sept. 3, 2024

The pervasive presence of mercury in water and cosmetics poses significant health risks, necessitating the development a method for in-situ monitoring extraction ions. This study introduces novel approach utilizing Mesoporous Silica Nanotubes (MSNTs) with unique worm-like structure, providing an expansive surface area ideal adsorption Hg2+ ion chromophore, N,N,N,N′-Tetramethyl-4,4′-diaminobenzophenone. configuration enables rapid visible detection toxic mercury, color transition from yellow to green that is easily discernible by naked eye. sensitivity Mercury nano-sensor (MNS) remarkably high, limit 1.9 × 10-8 M as determined digital image analysis, 4.9 via spectrophotometric methods—both well below WHO guidelines drinking water. MNS's low threshold, coupled its reusability after simple regeneration, positions it effective tool preliminary testing. findings suggest MNS, requiring only 10 mg measurements, offers promising solution real-time visualization ions, enhancing safety measures cosmetic products.

Language: Английский

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Fe/Mn-MOF-driven rapid arsenic decontamination: Mechanistic elucidation of adsorption processes and performance optimization

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106691 - 106691

Published: Dec. 1, 2024

Language: Английский

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Smartphone-enabled composite of cellulose nanocrystals for rapid and selective mercury detection in cosmetics and water: insights from density functional theory studies

International Journal of Environmental & Analytical Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 17

Published: Sept. 29, 2024

Language: Английский

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