Published: Jan. 1, 2024
Language: Английский
Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132239 - 132239
Published: Feb. 1, 2025
Language: Английский
Citations
1
Molecules, Journal Year: 2025, Volume and Issue: 30(8), P. 1840 - 1840
Published: April 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.
Language: Английский
Citations
0
Langmuir, Journal Year: 2024, Volume and Issue: 40(41), P. 21663 - 21674
Published: Oct. 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 (
Language: Английский
Citations
3
ACS Applied Engineering Materials, Journal Year: 2024, Volume and Issue: 2(10), P. 2414 - 2424
Published: Oct. 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.
Language: Английский
Citations
2
Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 130186 - 130186
Published: Oct. 1, 2024
Language: Английский
Citations
2
Langmuir, Journal Year: 2024, Volume and Issue: 40(26), P. 13648 - 13656
Published: June 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
Language: Английский
Citations
1
Surface and Coatings Technology, Journal Year: 2024, Volume and Issue: unknown, P. 131495 - 131495
Published: Oct. 1, 2024
Language: Английский
Citations
0
Journal of Materials Science, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 24, 2024
Language: Английский
Citations
0
Published: Jan. 1, 2024
Language: Английский
Citations
0