Superhydrophobic palmitic acid modified Cu(OH)2/CuS nanocomposite-coated copper foam for efficient separation of oily wastewater

Ji, Li; Gao, Ruixi; Wang, Yuan; Zhang, Tian C.; Yuan, Shaojun

doi:10.1016/j.colsurfa.2022.128249

Cited by 23 publications

(10 citation statements)

References 55 publications

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“…Moreover, besides the cotton fabrics signals peaks, the new characteristic peaks appeared at 101 ev, 162 ev and 932 ev attributed to Si 2s, Si 2p, Cu 2p as well as S 2p, respectively. Figure 3b–d clearly showed XPS spectra of Cu 2p, S 2p and Si 2p of CuS/RGO/PDMS@fabric, respectively [17] . Moreover, the above results verified that CuS/RGO/PDMS composite was successfully coated on cotton fabric.…”

Section: Resultssupporting

confidence: 59%

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Preparation of Superhydrophobic Cotton Fabric with Ultraviolet Resistance and Photocatalysis Based on CuS/Reduced Graphene Oxide

Pan

et al. 2023

ChemistrySelect

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In the present study, the superhydrophobic cotton fabrics with ultraviolet (UV) resistance and photocatalytic properties were fabricated by polydimethylsiloxane (PDMS) and CuS/reduced graphene oxide (RGO). The CuS/RGO particles enhanced the surface roughness, and PDMS was used to reduce the surface energy of cotton fabrics and increase the adhesion of CuS/RGO particles to cotton fabrics. The water contact angle (WCA) of coated cotton fabrics could reach ∼ 158.4°, endowing the fabrics with excellent self-cleaning and oil-water separation properties. It is confirmed that cotton fabric can obtain superhydrophobic property by adjusting the concentration of CuS/RGO and PDMS. Thanks to the good photocatalytic activity and excellent ultraviolet absorption capacity of the composite material, the superhydrophobic fabrics possessed outstanding ultraviolet resistance with the maximum UV protection factor (UPF) of 851.2 and photocatalytic performance with the photocatalytic degradation rate of methylene blue 92 %. Furthermore, the prepared cotton fabric retained superhydrophobicity after 90 h UV irradiation or 2000 cycles rubbing. The flexible superhydrophobic cotton fabrics with UV protection had promising application prospects in various fields.

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Section: Resultssupporting

confidence: 59%

“…Figure 3b-d clearly showed XPS spectra of Cu 2p, S 2p and Si 2p of CuS/RGO/PDMS@fabric, respectively. [17] Moreover, the above results verified that CuS/RGO/PDMS composite was successfully coated on cotton fabric.…”

Section: Structure Characterization and Analysis Of Cottonsupporting

confidence: 59%

Preparation of Superhydrophobic Cotton Fabric with Ultraviolet Resistance and Photocatalysis Based on CuS/Reduced Graphene Oxide

Pan

et al. 2023

ChemistrySelect

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“…The adsorption capacity of various oils and their organic solutions is crucial for the 3D-structured adsorptive separation of materials of sponges. , Therefore, the adsorption capacity of the SMS was tested by immersing it in eight organic solvents and oils, namely, n-hexane, iso-octene, toluene, xylene, dichloromethane, ethanol, and dimethylformamide (DMF). The calculation is as follows where m c and m s are the mass of the sponge before and after adsorption.…”

Section: Resultsmentioning

confidence: 99%

Durable 3D Porous Superhydrophobic Composites for Versatile Emulsion Separation in Multiple Environments

et al. 2022

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Polydopamine as a multifunctional biomimetic polymer with nonselective strong adhesion properties has become a hot research topic in recent years. However, there are a few reports on the durable and effective emulsion separation of polydopamine composites from other materials. Therefore, it is necessary to construct durable polydopamine composites to achieve selective adsorption of materials. In this work, polypyrrole (PPy)-PDA was obtained on sponges by an in situ polymerization reaction, followed by the attachment of SiO2 nanoparticles to the surface by polydimethylsiloxane to achieve superhydrophobicity. As a result, previously unreported selective superhydrophobic adsorbents for PPy-PDA coatings were obtained. The prepared sponges have an excellent adsorption capacity for oils and organic solvents. Not only can the sponges absorb 19–39 g of organic solvents per gram but they can also absorb oil from oil-in-water emulsions. The chemical oxygen demand value of the emulsion can be reduced to 219 mg/L after separation. More importantly, the performance remains good in the cycle test, and due to the construction of a durable superhydrophobic sponge, it can still maintain its relatively good performance in artificial seawater, acid–base environments, and can achieve relatively stable emulsion separation. At the same time, the potential of the polymer material composited with PDA in lasting and stable emulsion separation was also verified.

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“…The obtained sponge is superhydrophobic and exhibits excellent stability in harsh environments. Besides MoS 2 , other TMD materials have also been applied in oil–water separation [ 108 ]. Zhai et al prepared a tungsten disulfide (WS 2 )-attached sponge by a one-step dipping method.…”

Section: Two-dimensional Materials In Oil–water Separationmentioning

confidence: 99%

Preparation of 2D Materials and Their Application in Oil–Water Separation

et al. 2023

Biomimetics

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The problems of environmental pollution are increasingly severe. Among them, industrial wastewater is one of the primary sources of pollution, so it is essential to deal with wastewater, especially oil and water mixtures. At present, biomimetic materials with special wettability have been proven to be effective in oil-water separation. Compared with three-dimensional (3D) materials, two-dimensional (2D) materials show unique advantages in the preparation of special wettable materials due to their high specific surface area, high porosity, controlled structure, and rich functional group rich on the surface. In this review, we first introduce oil–water mixtures and the common oil–water separation mechanism. Then, the research progress of 2D materials in oil–water separation is presented, including but not limited to their structure, types, preparation principles, and methods. In addition, it is still impossible to prepare 2D materials with large sizes because they are powder-like, which greatly limits the application in oil–water separation. Therefore, we provide here a review of several ways to transform 2D materials into 3D materials. In the end, the challenges encountered by 2D materials in separating oil–water are also clarified to promote future applications.

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Superhydrophobic palmitic acid modified Cu(OH)2/CuS nanocomposite-coated copper foam for efficient separation of oily wastewater

Cited by 23 publications

References 55 publications

Preparation of Superhydrophobic Cotton Fabric with Ultraviolet Resistance and Photocatalysis Based on CuS/Reduced Graphene Oxide

Preparation of Superhydrophobic Cotton Fabric with Ultraviolet Resistance and Photocatalysis Based on CuS/Reduced Graphene Oxide

Durable 3D Porous Superhydrophobic Composites for Versatile Emulsion Separation in Multiple Environments

Preparation of 2D Materials and Their Application in Oil–Water Separation

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