Preparation of magnetic composite titanium-based MOFs for rapid and effective lead ion adsorption in aqueous solution

Journal of Molecular Structure, Год журнала: 2024, Номер 1323, С. 140727 - 140727

Опубликована: Ноя. 12, 2024

Язык: Английский

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Highly Selective MOF-Based Turn-Off Luminescence Detection of Hg²⁺ Ions in an Aqueous Medium and Its Dual Functional Catalytic Activity toward Aldol Condensation and β-Enamination Reactions

Inorganic Chemistry, Год журнала: 2022, Номер 62(1), С. 508 - 519

Опубликована: Дек. 19, 2022

A new organic ligand, 5-(carboxyformamido)isophthalic acid (5-CFIA), was prepared and employed for the synthesis of two compounds [M3(C10H4O7N1)2(8H2O)]·H2O (M = Cd, Mn). The have three-dimensionally extended structures. Both were found to be luminescent at room temperature. luminescence nature exploited detection Hg2+ ions in an aqueous medium with good selectivity. interactions between quench intensity act as a turn-off sensor. exhibited low limits range mandated by WHO. compound involve -NH group, which probed using Raman IR spectroscopic techniques. These studies provide important pointers toward mechanism this behavior. explored base-catalyzed aldol condensation Lewis acid-promoted β-enaminoester formation reactions. reaction uses functionality base. indicate that electron-withdrawing group produces products higher yields. centers, reveal groups produce lesser yields products. catalytic recyclability catalysts also established. reactions employ ethanol (aldol condensation) no solvent (β-enaminoester), suggests are green environmentally friendly. Mn observed anti-ferromagnetic.

Язык: Английский

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High-capacity adsorptive removal and recovery of trivalent europium ions using zinc-based metal–organic frameworks: Adsorption and mechanism study

Inorganic Chemistry Communications, Год журнала: 2023, Номер 155, С. 111049 - 111049

Опубликована: Июль 8, 2023

Язык: Английский

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Bio-based nitrogen doped carbon-silica composites from low value sugarcane by-products for the selective adsorption of Au(III) from aqueous systems

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(6), С. 111361 - 111361

Опубликована: Ноя. 3, 2023

Язык: Английский

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Recent Progress in Metal-Organic Frameworks (MOFs) for the Detection and Removal of Heavy Metal Ions from Water: A Comprehensive Review

Comments on Inorganic Chemistry, Год журнала: 2024, Номер unknown, С. 1 - 38

Опубликована: Июнь 8, 2024

MOFs have garnered significant attention as multifunctional materials with substantial potential in the field of water treatment, particularly context heavy metal detection and removal applications. This review focuses on latest research developments publication, highlighting applications for from sources. The provides an insightful overview cutting-edge advancements within this timeframe, showcasing pivotal role recognition cations. discussion encompasses exploration various sensing mechanisms, innovative design strategies, optimization techniques. These aspects collectively highlight to revolutionize real-time precise monitoring ion concentrations water, offering a pathway towards proactive quality management.

Язык: Английский

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Revolutionizing environmental cleanup: the evolution of MOFs as catalysts for pollution remediation

RSC Advances, Год журнала: 2024, Номер 14(50), С. 37164 - 37195

Опубликована: Янв. 1, 2024

Recently, metal–organic frameworks (MOFs) are emerging technology with remarkable potential, which have been employed in environmental remediation.

Язык: Английский

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Enhanced Hg(II) efficient and selective removal by post-functional Ti-MOF with 2，5 thiophene dicarboxylic acid

Process Safety and Environmental Protection, Год журнала: 2023, Номер 176, С. 696 - 705

Опубликована: Июнь 21, 2023

Язык: Английский

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Precise Fixation of the Spatial Configuration of Adsorption Groups for Removal of Mercury Ions from the Acidic Wastewater

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 10, 2025

Abstract Global release of up to 10 000 tons per year mercury (Hg), the third most toxic ion, into natural environment poses a significant threat public health. However, conventional adsorbents with flexible adsorption sites have limited capability in removal, especially highly acidic and multiple competing ion environments. Herein, Hg(II) coordinated 3,3′,5,5′‐tetrabromo‐2,2′‐bithiophene is selected as building monomer construct porous aromatic framework (PAF) through Suzuki coupling reaction. The positions angles two thiophene fragments are fixed by quadruple covalent bonds according coordination structure ion. These covalently bounded bithiophene units exhibited ≈303% increased binding affinity ≈140.0‐fold enhanced selectivity for ions, compared moieties. In addition, resulting solid ( MI LNU‐49) illustrates outstanding removal concentration varying from 5000.0 2.0 ppb, correspondingly, efficiency over 99.96% within 5 h actual wastewater. Remarkably, LNU‐49 outperforms previously reported ions under conditions. work enumerates strategy designing selective high‐affinity sites, which great interest fields environment, detection, energy storage.

Язык: Английский

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Simultaneously efficient dyes degradation and Cr(Ⅵ) adsorption from textile wastewater by a novel Fe-based metal organic framework/chitosan composite: Synthesis, performance and mechanism

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 133115 - 133115

Опубликована: Апрель 1, 2025

Язык: Английский

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Novel Mn-MOF-74/chitosan composite for adsorption and separation of tungsten and molybdenum: experimental and DFT calculation

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2025, Номер unknown, С. 137082 - 137082

Опубликована: Апрель 1, 2025

Язык: Английский

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