Опубликована: Янв. 1, 2024
Язык: Английский
Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 132239 - 132239
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1
Molecules, Год журнала: 2025, Номер 30(8), С. 1840 - 1840
Опубликована: Апрель 19, 2025
The separation of high-viscosity oil–water emulsions remains a global challenge due to ultra-stable interfaces and severe membrane fouling. In this paper, SiO2 micro–nanoparticles coated with polyethyleneimine (PEI) were initially loaded onto stainless steel substrate. This dual-functional design simultaneously modifies surface roughness wettability. Furthermore, covalent crosslinking network was created through the Schiff base reaction between PEI glutaraldehyde (GA) enhance stability membrane. exhibits extreme wettability, superhydrophilicity (WCA = 0°), underwater superoleophobicity (UWOCA 156.9°), enabling gravity-driven pump oil 99.9% efficiency flux 1006 L·m−2·h−1. Moreover, molecular dynamics (MD) simulations demonstrate that SiO2-PEI-GA-modified promotes formation stable hydration layer, reduces oil–layer interaction energy by 85.54%, superior oleophobicity compared unmodified SSM. Efficiency is maintained at 99.8% after 10 cycles. study provides scalable strategy combines hydrophilic particle modification, effectively addressing trade-off performance longevity in treatment viscous emulsions.
Язык: Английский
Процитировано
0
Langmuir, Год журнала: 2024, Номер 40(41), С. 21663 - 21674
Опубликована: Окт. 5, 2024
Developing a strong catalytic antifouling membrane to achieve efficient sewage purification has great potential for alleviating water crisis. In this work, we designed and prepared an Fe/Cu-layered double hydroxide (Fe-Cu LDH)-coated polyvinylidene fluoride (PVDF) composite (PVDF/Fe-Cu LDHs) with activating peroxymonosulfate (PMS) degradation performance through polydopamine-coordination anchoring hydrothermal reaction. The results showed that abundant hydroxyl groups of the LDH surface endowed superhydrophilicity (water contact angle <10°) underwater superoleophobicity (underwater-oil >150°) surface, which displayed outstanding resistance crude oil adhesion. With assistance surface-bound sulfate radical system, PVDF/Fe-Cu demonstrated robust methylene blue (MB) in dark; rate constant (
Язык: Английский
Процитировано
3
ACS Applied Engineering Materials, Год журнала: 2024, Номер 2(10), С. 2414 - 2424
Опубликована: Окт. 11, 2024
The spontaneous extraction of organic immiscible liquids using oil-repellent membranes holds substantial research significance, particularly in the domain oil–water mixture separation. However, development such is inherently challenging due to traditionally complex and multistep fabrication processes. This work introduces a single-step hydrothermal approach engineer surface with exceptional underwater–oil-repellent properties. Through reaction, nanoneedles are deposited onto porous hydrophobic nickel foam, imparting it superhydrophilicity air underwater superoleophobicity. resultant membrane demonstrates gravity-driven separation liquid mixtures, achieving an impressive efficiency up 99.6% extraordinary flux 33,839 L m–2 h–1. exhibit negligible oil droplet adhesion exceptionally low underwater–oil sliding angle. unique properties permit seamless manipulation transport microdroplets without any loss. Utilizing its antioil adhesiveness, facilitates transportation drop-to-drop configuration, showcasing potential for sophisticated applications oil-based microreactors. Furthermore, exhibits admirable reusability, chemical thermal stability, robust resistance salinity temperature fluctuations. simplified process offers promising method producing profound implications diverse demanding environments. Potential include spill remediation, transport, precise reagent transfer, droplet-based reactors.
Язык: Английский
Процитировано
2
Separation and Purification Technology, Год журнала: 2024, Номер unknown, С. 130186 - 130186
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
2
Langmuir, Год журнала: 2024, Номер 40(26), С. 13648 - 13656
Опубликована: Июнь 19, 2024
Controlling the spontaneous directional transport of droplets plays an important role in application microchemical reactions and microdroplet detection. Although relevant technologies have been widely studied, existing droplet strategies still face problems complex structure, single function, poor flexibility. Inspired by strategy nature, asymmetric wettability surface with microcone channels (AWS-MC) is prepared on a flexible fabric combining modification femtosecond laser manufacturing technology. On this surface, capillary force Laplace pressure induced gradient geometric structure drive from hydrophobic to hydrophilic surface. Notably, adjacent regions do not exchange substances even if gap region only 1 mm, which provides ideal platform for numerous detections drop. The does require external energy can adapt manipulation various types. Application blood organisms demonstrated. This work effective method microdroplet-directed self-transport
Язык: Английский
Процитировано
1
Surface and Coatings Technology, Год журнала: 2024, Номер unknown, С. 131495 - 131495
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
0
Journal of Materials Science, Год журнала: 2024, Номер unknown
Опубликована: Дек. 24, 2024
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
0