Facile preparation of marine carrageenan hydrogel‐coated steel mesh with superhydrophilic and underwater superoleophobic performance for highly efficient oil–water separation

Water Environment Research, Journal Year: 2025, Volume and Issue: 97(1)

Published: Jan. 1, 2025

Abstract The discharge of oil‐laden wastewater from industrial processes and the frequent occurrence oil spills pose severe threats to ecological environment human health. Membrane materials with special wettability have garnered attention for their ability achieve efficient oil–water separation by leveraging differences in at interface. These are characterized simplicity, energy efficiency, environmental friendliness, reusability. Among them, superhydrophilic‐underwater superoleophobic membranes inspired biomimetic fish scale structures become a focal point research due repel contaminants effectively maintain self‐cleaning properties during process. In this study, stainless steel microporous two‐dimensional metal mesh was employed as substrate, coated carrageenan solution, gelled situ using sodium periodate crosslinking agent fabricate membrane capabilities. robust hydrophilicity hydrogel imparts superhydrophilicity underwater superoleophobicity (underwater contact angle ≥ 158°), along excellent antifouling recyclability. Experimental results demonstrate that achieved efficiencies 98.87%, 98.08%, 98.14%, 97.98% silicone oil, canola cyclohexane, liquid paraffin, respectively, water flux 1380.75 L/m 2 ·h. Remarkably, retained its initial efficiency even after 20 cycles. Additionally, exhibited exceptional stability under highly alkaline conditions, making it suitable treatment complex oil‐contaminated wastewater. Practitioner Points This study extracted biocompatible renewable marine red algae application separation. A superhydrophilic/underwater developed based on structures. exceptionally high pure gravity‐driven conditions. resulting material exhibits repellency, capability,

Language: Английский

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Hydrogels with high sacrifice efficiency of sacrificial bonds and with high strength and toughness due to dense entanglements of polymer chains

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 687 - 696

Published: Aug. 3, 2024

Language: Английский

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Carboxylated polyarylene ether nitrile modified polysulfone membrane with enhanced anti-fouling for oily water separation and hexavalent chromium removal

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132486 - 132486

Published: March 1, 2025

Language: Английский

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Facile fabrication of ion/pH dual responsive semi-interpenetrating network hydrogel microspheres based on sodium alginate for efficient dye removal

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136755 - 136755

Published: March 1, 2025

Language: Английский

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Use of the droplet convergence effect of under-medium superlyophilic membranes in designing a system for on-demand separations of oil-in-water and water-in-oil emulsions

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 130186 - 130186

Published: Oct. 1, 2024

Language: Английский

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Gel-modified metal-phenolic networks membrane for emulsion separation with highly stable permeability and optimized mass transfer mode

Chemical Engineering Science, Journal Year: 2024, Volume and Issue: 302, P. 120808 - 120808

Published: Oct. 5, 2024

Language: Английский

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