Fabrication of robust surfaces with special wettability on porous copper substrates for various oil/water separations

Cao, Chenyang; Cheng, Jiang

doi:10.1016/j.cej.2018.04.146

Cited by 89 publications

(49 citation statements)

References 48 publications

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“…2a (Fig. 2b), 30,31 respectively. This implied that the polished Cu substrate was successfully covered with a silver lm aer being immersed into the AgNO 3 aqueous solution.…”

Section: Surface Chemistrymentioning

confidence: 90%

Facile fabrication of amphiphobic surfaces on copper substrates with a mixed modified solution

Wang

Zheng

et al. 2019

RSC Adv.

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“…2a (Fig. 2b), 30,31 respectively. This implied that the polished Cu substrate was successfully covered with a silver lm aer being immersed into the AgNO 3 aqueous solution.…”

Section: Surface Chemistrymentioning

confidence: 90%

Facile fabrication of amphiphobic surfaces on copper substrates with a mixed modified solution

Wang

Zheng

et al. 2019

RSC Adv.

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“…From Figure 4, the separation efficiency of benzene was 85%, 89%, and 94%. It can be seen that due to the different etching methods of copper meshes, the separation efficiency was different [53,54]. It was shown that with a decrease in L0, the separation efficiency became higher.…”

Section: Oil-water Separation Performancementioning

confidence: 98%

Hydrophobic and Anti-Fouling Performance of Surface on Parabolic Morphology

Liu

Yang

Chen

et al. 2020

IJERPH

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The hydrophobicity and anti-fouling properties of materials have important application value in industrial and agricultural production and people's daily life. To study the relationship between the unit width L 0 of the parabolic hydrophobic material and the hydrophobicity and anti-fouling properties, the rough surface structure of the parabolic with different widths was prepared by grinding with different SiC sandpapers, and further, to obtain hydrophobic materials through chemical oxidation and chemical etching, and modification with stearic acid (SA). The morphology, surface wetting and anti-fouling properties of the modified materials were characterized by SEM and contact angle measurement. The oil-water separation performance and self-cleaning performance of the materials were explored. The surface of the modified copper sheet forms a rough structure similar to a paraboloid. When ground with 1500 grit SiC sandpaper, it is more conducive to increase the hydrophobicity of the copper sheet surface and increase the contact angle of water droplets on the copper surface. Additionally, the self-cleaning and anti-fouling experiments showed that as L 0 decreases, copper sheets were less able to stick to foreign things such as soil, and the better the self-cleaning and anti-fouling performance was. Based on the oil-water separation experiment of copper mesh, the lower L 0 has a higher oil-water separation efficiency. The results showed that material with parabolic morphology has great self-cleaning, anti-fouling, and oil-water separation performance. The smaller the L 0 was, the larger the contact angle and the better hydrophobic performance and self-cleaning performance were.

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“…Besides the traditional methods, superhydrophobic and oleophilic materials, which can repel water and be wetted by oils, have been considered as suitable candidates for high-efficiency oil/water separation. Recently, researchers have fabricated an enormous amount of superhydrophobic materials for oil/water separation through sol-gel [8], chemical etching [9], spray methods [10], and hydrothermal treatment [11]. Superhydrophobic materials can be divided into separation materials and absorption materials.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Polypyrrole-Coated Cigarette Filters for Effective Oil/Water Separation

Zhang

Guo

et al. 2020

Applied Sciences

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To facilitate the recycling and reuse of cigarette filters and oil/water separation, a superhydrophobic cigarette filter was made by coating with dodecanethiol-modified polypyrrole (Ppy) particles by a dip-coating method. SEM, FTIR, and XPS were used to analyze the surface morphology and chemical compositions. The as-prepared superhydrophobic cigarette filter can realize wettability alteration via changing the ammonium persulfate (APS) concentration from 0.15 mol/L to 3 mol/L, and the contact angle increased from 0° on the original cigarette filter to 155° with a sliding angle of 5°. The superhydrophobic cigarette filter could effectively separate various oils and organic solvents. The separation efficiency was 98.8% and the separation stability was good. Furthermore, the as-prepared superhydrophobic cigarette filter had a large oil absorption range and could absorb different oils and organic solvents, including petroleum ether, engine oil, vegetable oil, n-hexane, and chloroform, with maximum absorption capacities ranging from 9.4 g/g to 22.7 g/g. According to the above results, we believe that the as-prepared superhydrophobic cigarette filter should have great potential in the recovery of solid waste and high-efficiency oil/water separation.

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Fabrication of robust surfaces with special wettability on porous copper substrates for various oil/water separations

Cited by 89 publications

References 48 publications

Facile fabrication of amphiphobic surfaces on copper substrates with a mixed modified solution

Facile fabrication of amphiphobic surfaces on copper substrates with a mixed modified solution

Hydrophobic and Anti-Fouling Performance of Surface on Parabolic Morphology

Superhydrophobic Polypyrrole-Coated Cigarette Filters for Effective Oil/Water Separation

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