A superhydrophobic copper mesh as an advanced platform for oil-water separation

Ren, Guina; Song, Yali; Li, Xiangming; Zhou, Yanli; Zhang, Zhaozhu; Zhu, Xiaotao

doi:10.1016/j.apsusc.2017.09.140

Cited by 176 publications

(44 citation statements)

References 32 publications

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“…Owing to its superhydrophilic/superoleophobic property, the sponge can act as an adsorbing material to collect water from bulk oils selectively without any oil-absorbing. This selective water collection from bulk oils is completely different from conventional techniques based on removing oils from bulk water [8][9][10][11][12][13], which has seldom been reported. Interestingly, the sponge is controlled to move to water areas by a magnet without touching it directly, owing to its magnetic property.…”

Section: Introductionmentioning

confidence: 85%

“…Herein, it should be emphasized that the obtained sponge selectively absorbs and collects water from bulk oils, which is completely different from conventional techniques that are based on removing oils from bulk water [8][9][10][11][12][13]. Also, the movement of sponge can be controlled by a magnet without touching it directly.…”

Section: Acting As a Sorbent Scaffold To Collect Water From Bulk Oilsmentioning

confidence: 99%

“…To demonstrate an opposite wettability between water and oil, porous materials, such as textile, mesh and sponge, can be used to separate oil-water mixtures [5]. Various groups have developed hydrophobic/oleophilic materials for the oil-water separation by coating a hydrophobic material onto porous substrates [8][9][10][11][12][13]. Although many different materials with superhydrophobicity and superoleophilicity have now been developed, they are subject to oil fouling as oils can be absorbed into the porous texture of them [5,7].…”

Section: Introductionmentioning

confidence: 99%

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An unusual superhydrophilic/superoleophobic sponge for oil-water separation

Zhu

Miao

et al. 2020

Front. Mater. Sci.

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Development of porous materials with anti-fouling and remote controllability is highly desired for oil-water separation application yet still challenging. Herein, to address this challenge, a sponge with unusual superhydrophilicity/superoleophobicity and magnetic property was fabricated through a dip-coating process. To exploit its superhydrophilic/superoleophobic property, the obtained sponge was used as a reusable water sorbent scaffold to collect water from bulk oils without absorbing any oil. Owing to its magnetic property, the sponge was manipulated remotely by a magnet without touching it directly during the whole water collection process, which could potentially lower the cost of the water collection process. Apart from acting as a water-absorbing material, the sponge can also be used as affiliation material to separate water from oil-water mixture and oil in water emulsion selectively, when fixed into a cone funnel. This research provides a key addition to the field of oil-water separation materials.

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Section: Introductionmentioning

confidence: 85%

Section: Acting As a Sorbent Scaffold To Collect Water From Bulk Oilsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An unusual superhydrophilic/superoleophobic sponge for oil-water separation

Zhu

Miao

et al. 2020

Front. Mater. Sci.

Self Cite

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“…In this decade, efforts have been taken by the researchers for the development methodology for effective separation/removal of oil from polluted water [2] , [3] , [4] , [5] . Recently, J. Saleem et al and coauthors published review on oil sorbents from plastic wastes and polymers [6] .…”

Section: Datamentioning

confidence: 99%

Waste packaging polymeric foam for oil-water separation: An environmental remediation

Patil

Anbhule

et al. 2018

Data in Brief

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Nowadays, its urgent need to develop and fabricate efficient, low cost, eco-friendly, oil-water separation methodologies especially for variety of polluted water in the environments. To deals with serious oil spills and industrial organic pollutants, here in we have developed a highly efficient oil-water separation methodology by using waste material such as expanded polyethylene (EPE) polymeric foam which is most commonly used for packaging as a shock absorber and most abundantly available in the surroundings as waste. Oil-water separation setup was fabricated by using waste EPE polymeric foam without any pre-treatment. By simply scratching, special properties (wettability performance) such as hydrophobicity, leophilicity, and low water adhesion was imparted to the EPE polymeric foam. The different types of oil-water mixture used for the study and separation were achieved almost up to 78%. The oil absorption efficiency of the EPE polymeric foam was within range of 0.491–0.788 g/g. In addition to efficient oil-water separation, the modified EPE polymeric foam exhibited fast and continuous oil-water separation solely by gravity. The easy operation, chemical durability, and efficiency of the waste EPE polymeric foam give it high potential for use in industrial and consumer applications for large scale oil-water separation.

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“…In terms of material preparation, in recent years, inspired by surface structures like the lotus leaf self-cleaning surface and mosquito compound eyes [28], a series of superhydrophobic materials were prepared and used for oil-water separation. Some of the most used methods consist of the surface modification of metallic meshes and fabrics, with diverse techniques such as hydrothermal methods [29], leaching [30], electrochemical anodization [31], solution immersion [32,33], and thermal polymerization [34]. Li has done a series of studies on oil-water separation materials in harsh conditions [35], such as fabricating superhydrophobic CS and silica overlap coated meshes for efficient oil-water separation.…”

Section: Introductionmentioning

confidence: 99%

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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A superhydrophobic copper mesh as an advanced platform for oil-water separation

Cited by 176 publications

References 32 publications

An unusual superhydrophilic/superoleophobic sponge for oil-water separation

An unusual superhydrophilic/superoleophobic sponge for oil-water separation

Waste packaging polymeric foam for oil-water separation: An environmental remediation

Hydrophobic and Anti-Fouling Performance of Surface on Parabolic Morphology

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