Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154915 - 154915
Published: Aug. 17, 2024
Language: Английский
Eco-Environment & Health, Journal Year: 2023, Volume and Issue: 2(3), P. 117 - 130
Published: July 13, 2023
To date, significant efforts have been devoted to eliminating hazardous components purify wastewater through the development of various nanomaterials. Covalent organic frameworks (COFs), an important branch porous crystalline family, possess peculiarity ultrahigh surface area, adjustable pore size, and facile functionality. Exciting studies from design fabrication potential applications in water treatment by COF-based membranes (COMs) emerged. This review summarizes preparation strategies synthesis mechanisms for COMs, including layer-by-layer stacking, situ growth, interfacial polymerization, electrochemical synthesis, briefly describes advanced characterization techniques COMs. Moreover, application COMs heavy metal removal, dye separation, purification radionuclides, pollutant detection, sea desalination, so on, is described discussed. Finally, perspectives on future opportunities designing proposed.
Language: Английский
Citations
81
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: March 10, 2024
Abstract Covalent organic frameworks (COFs) attract significant attention due to their ordered, crystalline, porous, metal‐free, and predictable structures. These unique characteristics offer great opportunities for the diffusion transmission of photogenerated charges during photocatalysis. Currently, a considerable number COFs are used as metal‐free semiconductor photocatalysts. This review aims understand relationships between structure photocatalysis performance provides in‐depth insight into synthetic strategy improve performance. Subsequently, focuses on structural motif in sustainable photocatalytic hydrogen evolution, carbon dioxide reduction, peroxide generation, compound transformations. Last, conjunction with progress achieved challenges yet be overcome, candid discussion is undertaken regarding field COF photocatalysis, accompanied by presentation potential research avenues future directions. seeks provide readers comprehensive understanding pivotal role robust guidance innovative utilization
Language: Английский
Citations
64
Journal of Environmental Sciences, Journal Year: 2023, Volume and Issue: 141, P. 63 - 89
Published: July 12, 2023
Language: Английский
Citations
43
Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(8)
Published: Feb. 13, 2024
Understanding the molecular-level mechanisms involved in transmembrane ion selectivity is essential for optimizing membrane separation performance. In this study, we reveal our observations regarding behavior of Li + and Mg 2+ ions as a response to changing pore solvation abilities covalent-organic-framework (COF) membranes. These were manipulated by adjusting lengths oligoether segments attached channels. Through comparative experiments, able unravel relationships between ability various transport properties, such partitioning, conduction, selectivity. We also emphasize significance competition with solvating modulating found that increasing length chain facilitated transport; however, it was COF chains containing two ethylene oxide units exhibited most pronounced discrepancy energy barrier , resulting highest factor among all evaluated Remarkably, under electro-driven binary-salt conditions, specific achieved an exceptional /Mg up 1352, making one effective membranes available separation. The insights gained from study significantly contribute advancing understanding selective within confined nanospaces provide valuable design principles developing highly
Language: Английский
Citations
37
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(19)
Published: Jan. 6, 2024
Abstract Crystalline porous materials (CPMs), including covalent organic frameworks (COFs) and metal–organic (MOFs), are promising for advanced separation technologies. However, the challenge of transforming nanoscale CPMs into large‐area functional membranes hinders their application in membrane process. Herein, a self‐standing pure COF (TpPa‐1) nanofiber with high crystallinity, good flexibility, excellent mechanical properties, scalability is prepared using an electrospinning process polymer sacrificial template strategy. Subsequently, innovatively used to replace traditional inorganic discs, metal meshes, as supports, COF–MOF composite CPM through tailorable confined growth zeolite imidazolium salt frame‐8 (ZIF‐8) on surface gaps nanofibers. The exhibits permeability significantly enhances selectivity dyes. Moreover, MOF form interpenetrating network structure, similar chemical properties improve interfacial stability between two phases, giving long‐term performance. This first molecular sieving performance, which provides new insights design high‐performance robust membranes.
Language: Английский
Citations
34
Progress in Polymer Science, Journal Year: 2024, Volume and Issue: 152, P. 101815 - 101815
Published: April 2, 2024
Language: Английский
Citations
29
Nature Sustainability, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 22, 2025
Language: Английский
Citations
2
Nano Letters, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 5, 2025
Utilizing pore and interlayer engineering within nanoconfined interlaminar channels represents an ingenious approach to design highly permselective MXene (Ti3C2TX) membranes. Herein, the tannic acid (TA) etched ZIF-8 (TZIF-8) nanocrystals with hollow structures were effectually inserted into spacing of First, density functional theory (DFT) results demonstrated reaction mechanism between TA ZIF-8. Then, underlying enhanced water-adsorptive properties for MXene/TZIF-8 membrane was due higher binding energy water/TZIF-8 system than that water/ZIF-8 system, elucidated by molecular dynamic simulation. Furthermore, low mass transfer resistance abundant pathways comprehensively proved various experimental conclusions, characterizations simulation calculations. As a result, optimal exhibited high water permeance concurrently satisfactory separation efficacy toward oil/water emulsions. This work is anticipated deepen comprehension high-efficiency transport along interbedded nanochannels in
Language: Английский
Citations
2
Advanced Materials, Journal Year: 2023, Volume and Issue: 35(26)
Published: March 27, 2023
Highly flexible and robust self-standing covalent organic framework (COF) membranes with rapid preparation are important but technically challenging for achieving precise separation. Herein , a novel imine-based 2D soft (SCOF) membrane large area of 226.9 cm2 via ingeniously selecting an aldehyde linker trigonal building block, is reported. The rapidly formed (≈5 min) based on the sodium dodecyl sulfate (SDS) molecular channel constructed at water/dichloromethane (DCM) interface, which record-fast SCOF formation 72 times faster than that in reported literature. MD simulation DFT calculation elucidate dynamic, self-assembled SDS facilitates more homogeneous transfer amine monomers bulk, thereby forming COF uniform pores. exhibits superb sieving capability small molecules, robustness strong alkaline (5 mol L-1 NaOH), acid (0.1 HCl), various solutions, sufficient flexibility curvature 2000 m-1 membrane-based separation science technology.
Language: Английский
Citations
42
Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133049 - 133049
Published: Nov. 21, 2023
Language: Английский
Citations
32