Mussel-inspired pH-responsive copper foam with switchable wettability for bidirectional oil-water separation

Sui, Weiwei; Hu, Huawen; Lin, Yi; Peng, Yi; Miao, Lei; Zhang, Haichen; He, Haiying; Li, Guangji

doi:10.1016/j.colsurfa.2021.127603

Cited by 21 publications

(2 citation statements)

References 73 publications

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“…It is crucial to develop a facile, cost-effective and time-saving method for oil/water separation applications. Superhydrophobic surfaces are bioinspired (e.g., from lotus leaf, shark skin, strider leg) and their wettability was evaluated using static water contact angle (WCA) measurements [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Stable Superhydrophobic Copper Foams Suitable for Treatment of Oily Wastewater

et al. 2023

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A simple two-stage chemical solution process is reported, to deposit a superhydrophobic film on copper foams with a view to be employed in oil absorption or filtration procedures. The first stage includes the growth of a silver layer to increase micro roughness and the second one evolves the modification of the film using stearic acid. The whole process is time-saving, cost effective and versatile. UV-Vis spectroscopy was employed to determine optimum deposition durations and detect potential film detachments during the synthesis process. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) were used to examine the film structure and elemental analysis. Surface functional groups were detected by Fourier transform infrared (FTIR) spectroscopy. An adherent superhydrophobic silver coating was achieved under optimum deposition durations. A leaf-like structural morphology appeared from silver deposition and spherical, microflower morphologies stemmed from the stearic acid deposition. The influence of process conditions on wettability and the obtained silver film morphology and topography were clarified. Thermal stability at several temperatures along with chemical stability for acidic and alkaline environments were examined. Oil absorption capacity and separation efficiency were also evaluated for the optimum superhydrophobic copper foams. The results showed that the produced superhydrophobic copper foams can potentially be used to oil/water separation applications.

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Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Stable Superhydrophobic Copper Foams Suitable for Treatment of Oily Wastewater

et al. 2023

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“…Based on this, a superhydrophobic coating of PDA has been reported, frequently. For example, Sui et al 18 reported a pH-responsive coating composed of CF–PDA–Ag on copper foam for oil–water separation. Although lots of research has been reported, two aspects of fabricating PDA coatings still need to be paid attention to: long time preparation and application fields.…”

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confidence: 99%

Two-step facile fabrication of a superamphiphilic biomimic membrane with a micro–nano structure for oil–water emulsion separation on-demand

et al. 2022

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Copper Nanoparticles Modified Superhydrophobic Electrospun Carbon Nanofiber Membranes with Enhanced the Oil–water Separation Performance

Guo,

Sun,

Bai

et al. 2024

Water Air Soil Pollut

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Mussel-inspired pH-responsive copper foam with switchable wettability for bidirectional oil-water separation

Cited by 21 publications

References 73 publications

Preparation and Characterization of Stable Superhydrophobic Copper Foams Suitable for Treatment of Oily Wastewater

Preparation and Characterization of Stable Superhydrophobic Copper Foams Suitable for Treatment of Oily Wastewater

Two-step facile fabrication of a superamphiphilic biomimic membrane with a micro–nano structure for oil–water emulsion separation on-demand

Copper Nanoparticles Modified Superhydrophobic Electrospun Carbon Nanofiber Membranes with Enhanced the Oil–water Separation Performance

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