Blow-Spun Nanofibrous Membrane for Simultaneous Treatment of Emulsified Oil/Water Mixtures, Dyes, and Bacteria

Langmuir, Год журнала: 2022, Номер 38(50), С. 15729 - 15739

Опубликована: Дек. 10, 2022

Membrane separation is of great significance due to its unique performance in treating wastewater. However, the simultaneous treatment oily emulsions and other complex pollutants water remains challenging. Herein, we have proposed a simple strategy prepare multifunctional titanium dioxide/silver nanoparticles/polyacrylonitrile (TiO2/AgNPs/PAN) nanofibrous membrane. The experimental results showed that combination hierarchical structure composed PAN nanofibers Ag/TiO2 nanoprotrusions contributed superhydrophilicity superoleophobicity (UOCA = 153.3 ± 2.0°). Further, membrane exhibited rapid gravity-driven permeate flux (>1829.37 83.51 L m-2 h-1) an ultrahigh efficiency (>99.9%) for surfactant-stabilized oil/water emulsions. Moreover, synergistic effect between fibers TiO2/Ag heterojunction, Rhodamine B dye can be removed quickly efficiently (up 97.67% 90 min). More importantly, obtained stability different harsh environments. design superoleophobic nanofiber with high photocatalytic activity has potential practical applications purification

Язык: Английский

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Defect Engineering of MOF‐Based Membrane for Gas Separation

Advanced Functional Materials, Год журнала: 2023, Номер 33(38)

Опубликована: Май 26, 2023

Abstract Metal–organic frameworks (MOFs) are highly versatile materials that have been identified as promising candidates for membrane‐based gas separation applications due to their uniformly narrow pore windows and virtually unlimited structural chemical features. Defect engineering of MOFs has opened new opportunities manipulating MOF structures, providing a simple yet efficient approach enhancing membrane separation. However, the utilization this strategy tailor microstructures enhance performance is still in its infancy. Thus, summary aims provide guideline tailoring defective MOF‐based membranes. Recent developments defect membranes will be discussed, including synthesis strategies MOFs, effects defects on adsorption properties, transport mechanisms, recently reported Furthermore, emerging challenges future prospects outlined. Overall, offers an exciting opportunity improve there long way go fully understand influence properties optimize design specific applications. Nonetheless, continued research field holds great promise development next‐generation technologies.

Язык: Английский

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Membranes for Oil/Water Separation: A Review

Advanced Materials Interfaces, Год журнала: 2022, Номер 9(27)

Опубликована: Авг. 25, 2022

Recent advancements in separation and membrane technologies have shown a great potential removing oil from wastewaters effectively. In addition, the capabilities improved to fabricate membranes with tunable properties terms of their wettability, permeability, antifouling, mechanical that govern treatment oily wastewaters. Herein, authors critically reviewed literature on technology for oil/water specific focus on: 1) characterization, 2) development various materials (e.g., organic, inorganic, hybrid membranes, innovative materials), 3) design mixed matrix nanocomposite multilayers), 4) fabrication techniques surface modification techniques. The current challenges future research directions applications are also highlighted. Thus, this review provides helpful guidance toward finding more effective, practical, scalable solutions tackle environmental pollution by oils.

Язык: Английский

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Boosting membrane carbon capture via multifaceted polyphenol-mediated soldering

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Март 27, 2023

Advances in membrane technologies are significant for mitigating global climate change because of their low cost and easy operation. Although mixed-matrix membranes (MMMs) obtained via the combination metal-organic frameworks (MOFs) a polymer matrix promising energy-efficient gas separation, achievement desirable match between polymers MOFs development advanced MMMs is challenging, especially when emerging highly permeable materials such as intrinsic microporosity (PIMs) deployed. Here, we report molecular soldering strategy featuring multifunctional polyphenols tailored chains, well-designed hollow MOF structures, defect-free interfaces. The exceptional adhesion nature results dense packing visible stiffness PIM-1 chains with strengthened selectivity. architecture leads to free mass transfer substantially improves permeability. These structural advantages act synergistically break permeability-selectivity trade-off limit surpass conventional upper bound. This polyphenol method has been validated various polymers, providing universal pathway prepare performance diverse applications beyond carbon capture.

Язык: Английский

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A review on the recent advances in composite membranes for CO2 capture processes

Separation and Purification Technology, Год журнала: 2022, Номер 307, С. 122752 - 122752

Опубликована: Ноя. 26, 2022

Язык: Английский

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Sustainable metal-organic frameworks (MOFs) for drug delivery systems

Materials Today Communications, Год журнала: 2023, Номер 35, С. 106244 - 106244

Опубликована: Май 18, 2023

Язык: Английский

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Ester-crosslinked polymers of intrinsic microporosity membranes with enhanced plasticization resistance for CO2 separation

Separation and Purification Technology, Год журнала: 2023, Номер 314, С. 123623 - 123623

Опубликована: Март 16, 2023

Язык: Английский

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Recent advances in the interfacial engineering of MOF-based mixed matrix membranes for gas separation

Nanoscale, Год журнала: 2024, Номер 16(16), С. 7716 - 7733

Опубликована: Янв. 1, 2024

This is a comprehensive review for resolving compatibility challenges in fabricating practical metal–organic framework composite membranes gas separation.

Язык: Английский

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Highly Flexible and Self‐Standing Covalent Organic Framework–Metal–Organic Framework (COF–MOF) Composite Crystalline Porous Material (CPM) Membrane for Molecular Separation

Advanced Functional Materials, Год журнала: 2024, Номер 34(19)

Опубликована: Янв. 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.

Язык: Английский

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ZIF-8 Gel/PIM-1 mixed matrix membranes for enhanced H2/CH4 separations

Chemical Engineering Journal, Год журнала: 2024, Номер 484, С. 149489 - 149489

Опубликована: Фев. 9, 2024

Язык: Английский

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