Continuous and steady-state high-flux demulsification of oil-in-water emulsions by antifouling copper foam with composite superhydrophilicity-oleophobicity

Chen, Zehao; Tan, Qing; Jin, Xuekai; Wen, Xiufang; Zuo, Jihao; Pi, Pihui

doi:10.1016/j.cej.2024.154098

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.154098

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Continuous and steady-state high-flux demulsification of oil-in-water emulsions by antifouling copper foam with composite superhydrophilicity-oleophobicity

Zehao Chen,

Qing Tan,

Xuekai Jin

et al.

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2024

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Cited by 2 publications

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High‐Flux Steady‐State Demulsification of Oil‐In‐Water Emulsions by Superhydrophilic‐Oleophobic Copper Foams with Ultra‐Small Pores Under Pressure

Chen,

Wang,

Jin

et al. 2024

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Abstract3D superwetting materials struggle to maintain high‐flux steady‐state demulsification for oil‐in‐water emulsions because the accumulated oil within the material is difficult to discharge rapidly. The water flow shear force can swiftly remove the oil from the anti‐fouling surface. In this study, by introducing nanofibers and carbon nanotubes and chemical modification, a superhydrophilic‐oleophobic copper foam with pores of several micrometers is prepared, which can achieve a continuous demulsification process with steady‐state flux over 57000 L m−2 h−1 for oil‐in‐water emulsions and rapid hydraulic‐driven oil release under an additional pressure of 5 kPa. Thanks to the ultra‐small pores of the copper foam, the steady‐state demulsification efficiency can be still maintained at over 97.5%. During the demulsification process, the accumulation of oil and surfactants within the copper foam can be maintained at low levels, achieving dynamic equilibrium. With the aid of second‐stage superhydrophilic copper mesh, the demulsified oil‐water mixtures can be rapidly separated. This high‐flux, steady‐state, and efficient demulsification process shows great potential for industrial applications.

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High‐Flux Steady‐State Demulsification of Oil‐In‐Water Emulsions by Superhydrophilic‐Oleophobic Copper Foams with Ultra‐Small Pores Under Pressure

Chen,

Wang,

Jin

et al. 2024

Small

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Enhanced durable O/W emulsion separation strategy for superhydrophilic membranes based on the layered structure with heterogeneous wettability

Yan,

Zhu,

et al. 2024

Journal of Membrane Science

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Continuous and steady-state high-flux demulsification of oil-in-water emulsions by antifouling copper foam with composite superhydrophilicity-oleophobicity

Cited by 2 publications

References 58 publications

High‐Flux Steady‐State Demulsification of Oil‐In‐Water Emulsions by Superhydrophilic‐Oleophobic Copper Foams with Ultra‐Small Pores Under Pressure

High‐Flux Steady‐State Demulsification of Oil‐In‐Water Emulsions by Superhydrophilic‐Oleophobic Copper Foams with Ultra‐Small Pores Under Pressure

Enhanced durable O/W emulsion separation strategy for superhydrophilic membranes based on the layered structure with heterogeneous wettability

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