Empowering ultrathin polyamide membranes at the water–energy nexus: strategies, limitations, and future perspectives

Chemical Society Reviews, Год журнала: 2024, Номер 53(9), С. 4374 - 4399

Опубликована: Янв. 1, 2024

This review details the design and creation of ultrathin polyamide membranes with significant enhancement in water permeance along limitations potential strategies to empower their efficacy ionic molecular separations.

Язык: Английский

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Enhanced performance polyamide membrane by introducing high-porosity SOD/GO composite interlayer to tailor the interfacial polymerization process

Chemical Engineering Journal, Год журнала: 2024, Номер 481, С. 148595 - 148595

Опубликована: Янв. 7, 2024

Язык: Английский

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Strengthening nanofiltration membrane: Strategies for enhanced antifouling performance

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160964 - 160964

Опубликована: Фев. 1, 2025

Язык: Английский

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The Complex Influence of Membrane Roughness on Colloidal Fouling: A Dialectical Perspective

Journal of Membrane Science, Год журнала: 2025, Номер unknown, С. 124014 - 124014

Опубликована: Март 1, 2025

Язык: Английский

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NaHCO3 addition enhances water permeance and Ca/haloacetic acids selectivity of nanofiltration membranes for drinking water treatment

Water Research, Год журнала: 2023, Номер 242, С. 120255 - 120255

Опубликована: Июнь 20, 2023

Язык: Английский

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Modeling nanovoid-enhanced water permeance of thin film composite membranes

Journal of Membrane Science, Год журнала: 2023, Номер 675, С. 121555 - 121555

Опубликована: Март 7, 2023

Язык: Английский

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Poly(vinyl alcohol)-based polyester nanofiltration membranes for fractionation of dye/salt mixtures: Alcoholysis degree matters

Separation and Purification Technology, Год журнала: 2023, Номер 328, С. 125076 - 125076

Опубликована: Сен. 14, 2023

Язык: Английский

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Positively‐Coated Nanofiltration Membranes for Lithium Recovery from Battery Leachates and Salt‐Lakes: Ion Transport Fundamentals and Module Performance

Advanced Functional Materials, Год журнала: 2024, Номер 34(48)

Опубликована: Авг. 15, 2024

Abstract Membranes facilitate scalable and continuous lithium concentration from hypersaline salt lakes battery leachates. Conventional nanofiltration (NF) membranes, however, exhibit poor monovalent selectivity in high‐salinity environments due to weakened exclusion mechanisms. This study examines polyamide NF membranes coated with polyelectrolytes enriched ammonium groups maintain high cation conditions. Over 8000 ion rejection measurements are recorded using lake brines The experiments exemplify the membrane's ability reduce magnesium concentrations 0.14% elevate purity 98% leachates, a single filtration stage. is retained after 12 weeks acidic Molecular dynamics analyses reveal that create an electrostatic barrier at low pH, selectively hindering multivalent transport. corroborated by Coulombic attraction between cations carboxylate groups, along repulsive groups. Despite 14.7% increase specific energy, two‐stage system for recovery significantly reduces permeate composition 0.031% Chilean brines. For NMC achieve exceeding 99.5%, yielding enhanced quality minor increases energy demands.

Язык: Английский

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Nanofoamed Polyamide Membranes: Mechanisms, Developments, and Environmental Implications

Environmental Science & Technology, Год журнала: 2024, Номер 58(47), С. 20812 - 20829

Опубликована: Ноя. 12, 2024

Thin film composite (TFC) polyamide membranes have been widely applied for environmental applications, such as desalination and water reuse. The separation performance of TFC strongly depends on their nanovoid-containing roughness morphology. These nanovoids not only influence the effective filtration area but also regulate transport pathways through film. Although there ongoing debates formation mechanisms nanovoids, a nanofoaming theory─stipulating shaping morphology by nanobubbles degassed CO

Язык: Английский

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Engraving Polyamide Layers by In Situ Self-Etchable CaCO₃ Nanoparticles Enhances Separation Properties and Antifouling Performance of Reverse Osmosis Membranes

Environmental Science & Technology, Год журнала: 2024, Номер 58(14), С. 6435 - 6443

Опубликована: Март 29, 2024

Nanovoids within a polyamide layer play an important role in the separation performance of thin-film composite (TFC) reverse osmosis (RO) membranes. To form more extensive nanovoids for enhanced performance, one commonly used method is to incorporate sacrificial nanofillers during exothermic interfacial polymerization (IP) reaction, followed by some post-etching processes. However, these post-treatments could harm membrane integrity, thereby leading reduced selectivity. In this study, we applied situ self-etchable taking advantage strong acid and heat generated IP. CaCO3 nanoparticles (nCaCO3) were as model nanofillers, which can be etched reacting with H+ leave void nanostructures behind. This reaction further degas CO2 nanobubbles assisted IP layer. These facilitate water transport enlarging effective surface filtration area reducing hydraulic resistance significantly enhance permeance. The correlations between nanovoid properties systematically analyzed. We demonstrate that nCaCO3-tailored improve antifouling propensity rejections boron As(III) compared control. study investigated novel strategy applying gas precursors engrave provides new insights into design synthesis TFC

Язык: Английский

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