We report a biocatalytic, buoyancy-propelled metal-organic framework (MOF) nanomotor system with boosted removal efficiency for both inorganic heavy metal ions and organic per- and poly-fluoroalkyl substances (PFAS). With the motion-induced convection and increased mass transfer of the target pollutants, the nano system exhibits excellent contaminants remediation capacity in both fresh water and sea water environments.
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http://dx.doi.org/10.1039/d0cc06429g | DOI Listing |
Nanoscale Adv
December 2024
Department of Organic Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University 6517838683 Hamadan Iran
Here, a straightforward design is employed to synthesize a nanocatalyst based on a carbon-activated modified metal-organic framework using the solvothermal method. This work presents a simple and practical approach for producing the activated carbon derived from the Thymus plant (ACT) modified with amine-functionalized isoreticular metal-organic framework-3 (IRMOF-3) to create an ACT@IRMOF-3 core-shell structure. Successful functionalization was confirmed through N adsorption isotherms, FT-IR, FE-SEM, TEM, EDS, elemental mapping, TGA, and XRD analysis.
View Article and Find Full Text PDFChem Sci
December 2024
Department of Physics & Chemistry, DGIST Daegu 42988 Korea
Metal-organic frameworks (MOFs), characterized by dynamic metal-ligand coordination bonding, have pivotal roles in catalysis, gas storage, and separation processes, owing to their open metal sites (OMSs). These sites, however, are frequently occupied by Lewis-base solvent molecules, necessitating activation to expose the OMSs for practical applications. Traditional thermal activation methods involve harsh conditions, risking structural integrity.
View Article and Find Full Text PDFRSC Adv
January 2025
School of Chemistry and Chemical Engineering, Shanxi University Taiyuan 030006 China
Ionic liquid (IL) units in heterogeneous catalysts exhibit synergistic effects to enhance catalytic performance and stabilize catalytically active centers, while also preventing the degradation of catalysts during the reaction process. Ionic liquid units in IL-functionalized CMOF catalysts enhance their catalytic performance in a synergistic manner. However, not only are the yields of IL-functionalized CMOFs obtained with post-synthesis methods low, but they also lead to blocking of the MOF pores and leaching of the ionic liquid.
View Article and Find Full Text PDFHeliyon
January 2025
School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
Metal-organic framework (MOF) derived porous FeO/C powders were applied for absorption of microwaves in the frequency range of 1-18 GHz. The effects of the polyvinylpyrrolidone (PVP) additive on the synthesis of MIL101-(Fe) precursor were studied by various characterization methods. By adding PVP, the impure hematite phase (α-FeO) with magnetite phase (FeO) was disappeared and the particular morphology was transformed to the porous rod-like, leading to the increase of specific surface area from 150 to 282 m/g.
View Article and Find Full Text PDFFood Chem X
January 2025
Key Laboratory of Edible Oil Quality and Safety, State Administration for Market Regulation, Hubei Key Laboratory for Processing and Transformation of Agricultural Products, College of Food Science and Engineering, Wuhan Polytechnic University, 68Xuefu South Road, Changqing Garden, Wuhan 430023, China.
Unlabelled: Mixed-mode sorbents exhibit two or more primary retention mechanisms, which can enhance the selectivity and capacity of the extraction process in a single step. In this study, a facile approach was proposed to prepare functionalized metal-organic frameworks (MOFs) by post-synthetic oxidation. The composites could be varied independently for each processing step, resulting in four frameworks to meet different sample pretreatment requirements.
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