A robust copper mesh-based superhydrophilic/superoleophobic composite for high-flux oil–water separation

With the fast growing of oily contaminants, continuous oil/water separation with high flux is in demand. Superhydrophilic/superoleophobic composites are considered as ideal candidates. In this work, the oil–water separation composite is from superhydrophilic copper mesh coated by robust superhydroph...

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Veröffentlicht in:Journal of materials science 2023-07, Vol.58 (27), p.11044-11061
Hauptverfasser: Li, Ruhui, Yu, Ruobing, Fan, Junhan, Chang, Bu
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container_end_page 11061
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container_title Journal of materials science
container_volume 58
creator Li, Ruhui
Yu, Ruobing
Fan, Junhan
Chang, Bu
description With the fast growing of oily contaminants, continuous oil/water separation with high flux is in demand. Superhydrophilic/superoleophobic composites are considered as ideal candidates. In this work, the oil–water separation composite is from superhydrophilic copper mesh coated by robust superhydrophilic/superoleophobic paint based on fluorine-containing epoxy resin. Firstly, a superhydrophilic/superoleophobic coating with excellent comprehensive properties was prepared through hydrophilic epoxy and superhydrophilic/superoleophobic TiO 2 . Then copper mesh was treated into being superhydrophilic, and the superhydrophilic/superoleophobic coating was sprayed on the superhydrophilic copper mesh to obtain oil–water separation material. As a result, the oil–water separation efficiency of the separation material is higher than 99.7%, the water flux is higher than 80,000 L m −2  h −1 , and it has excellent mechanical properties. The oil–water separation material is promising for the applications.
doi_str_mv 10.1007/s10853-023-08711-0
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subjects Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Coatings
Composites & Nanocomposites
Contact angle
Contaminants
Copper
Crystallography and Scattering Methods
Efficiency
epoxides
Epoxy resins
Fluorine
Fluorine compounds
Hydrogels
hydrophilicity
Materials Science
Mechanical properties
Methylene blue
Nanocomposites
oils
Polyethylene glycol
Polymer Sciences
Robustness
Separation
Sodium
Solid Mechanics
Stainless steel
Surfactants
Titanium dioxide
Water
title A robust copper mesh-based superhydrophilic/superoleophobic composite for high-flux oil–water separation
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