One-step removal of insoluble oily compounds and water-miscible contaminants from water by underwater superoleophobic graphene oxide-coated cotton

Zhu, Danning; Xia, Yunfei; Yang, Jin; Chen, Beibei; Guo, Shun; Li, Changsheng

doi:10.1007/s10570-017-1514-4

Cited by 12 publications

(12 citation statements)

References 30 publications

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“…PDMAEMA reduces the porosity by bonding with H 2 O. As cellulose has an abundance of hydroxyl group, the membrane is also used as a dye absorbent (methylene blue, rhodamine B, and gentian violet) (Zhu et al, 2017;Huang et al, 2019b). By composting with graphene oxide, the dye removal efficiency is up to 97% with flux from 170 to 300 L/m 2 /h (Zhu et al, 2017).…”

Section: Preparation Of Superolephobic Membranesmentioning

confidence: 99%

“…As cellulose has an abundance of hydroxyl group, the membrane is also used as a dye absorbent (methylene blue, rhodamine B, and gentian violet) (Zhu et al, 2017;Huang et al, 2019b). By composting with graphene oxide, the dye removal efficiency is up to 97% with flux from 170 to 300 L/m 2 /h (Zhu et al, 2017). The cationic dye is absorbed by an electrostatic interaction between the dye and oxygen group of graphene oxide (GO).…”

Section: Preparation Of Superolephobic Membranesmentioning

confidence: 99%

“…Otherwise, the strength of the membrane is evaluated by mechanical compression (Zhu et al, 2017;Halim et al, 2019) or tensile strength (Ahmed et al, 2014). For mechanical compression, a compression strain of up to 85% was reported (Zhu et al, 2017;Halim et al, 2019). For tensile evaluation, the stretching rate is 1 mm/min, and the stressstrain curve was recorded (Ahmed et al, 2014).…”

Section: Performance Of Superoleophobic Membranesmentioning

confidence: 99%

“…Stability under thermocycling is evaluated through five cycles of freezing at -18°C and thawing at room temperature, or by heating to 60°C and cooling to room temperature (Dai et al, 2019) to observe the water leaching out of irreversible phase change. Mild temperature evaluation is conducted through the use of a solution at a temperature of 10°C-80°C (Cheng et al, 2017b), or sonication at a power of 180 W for 30 min to evaluate the coating bonding (Zhu et al, 2017;Koh et al, 2019). Sandpaper abrasion with 100 g loading and adhesive tape with 100 N/m adhesive strength was used (Huang et al, 2019b).…”

Section: Performance Of Superoleophobic Membranesmentioning

confidence: 99%

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Bioinspired cellulose-based membranes in oily wastewater treatment

Halim

Ernawati

Ismayati³

et al. 2021

Front. Environ. Sci. Eng.

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It is challenging to purify oily wastewater, which affects water-energy-food production. One promising method is membrane-based separation. This paper reviews the current research trend of applying cellulose as a membrane material that mimics one of three typical biostructures: superhydrophobic, underwater superoleophobic, and Janus surfaces. Nature has provided efficient and effective structures through the evolutionary process. This has inspired many researchers to create technologies that mimic nature’s structures or the fabrication process. Lotus leaves, fish scales, and Namib beetles are three representative structures with distinct functional and surface properties: superhydrophobic, underwater superoleophobic, and Janus surfaces. The characteristics of these structures have been widely studied and applied to membrane materials to improve their performance. One attractive membrane material is cellulose, whichhas been studied from the perspective of its biodegradability and sustainability. In this review, the principles, mechanisms, fabrication processes, and membrane performances are summarized and compared. The theory of wettability is also described to build a comprehensive understanding of the concept. Finally, future outlook is discussed to challenge the gap between laboratory and industrial applications.

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Section: Preparation Of Superolephobic Membranesmentioning

confidence: 99%

Section: Preparation Of Superolephobic Membranesmentioning

confidence: 99%

Section: Performance Of Superoleophobic Membranesmentioning

confidence: 99%

Section: Performance Of Superoleophobic Membranesmentioning

confidence: 99%

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Bioinspired cellulose-based membranes in oily wastewater treatment

Halim

Ernawati

Ismayati³

et al. 2021

Front. Environ. Sci. Eng.

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“…Separation of oil from water has gained crucial attention from both academic and industrial researchers within the recent years due to the increment of industrial oily wastewater and polluted oceanic water as well as the oil leakage accidents [1][2][3]. Therefore, developing cost-effective functional materials with the capability of oil-water separation is necessary, and consequently, numerous reports could be found in the literature addressing such issue [4][5][6][7][8][9]. According to those reports, several efficient methods have been suggested for oil-water separation.…”

Section: Introductionmentioning

confidence: 99%

Investigating the effect of surface composition and morphology on oil/water separation efficiency of sponges coated with polymer nanocomposites

Akhavan

Hejazi²,

Seyfi

et al. 2018

Polymer Composites

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As a worldwide challenge, the oil spillage has gained tremendous attention within the last few years. In this work, a facile method is proposed to fabricate sponges treated with polydimethylsiloxane (PDMS) and modified/unmodified silica nanoparticles exhibiting superhydrophobic and superoleophilic properties for enhanced oil/water separation. The main aim is to delineate the role of surface composition versus surface morphology by employing different formulations. Scanning electron microscopy results demonstrated that a rough structure, induced by formation of a packed assembly of nanoparticles, gives a major contribution to the obtained superhydrophobic behavior. It was also proved that the surface modification of silica nanoparticles might play an even more important role in attaining superhydrophobicity. Once a combination of PDMS and modified silica was used, different oil/ water mixtures were efficiently separated. On the other hand, surface composition of the coating was found to be the major factor affecting wettability of sponges and their capability to separate water/oil mixtures. Therefore, results of this study can be used as a hint for designing more efficient sponge-based systems modified with polymer nanocomposites for oil/water separation applications. POLYM. COMPOS., 00:000-000, 2018.

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Multifunctional carbon aerogels from typha orientalis for oil/water separation and simultaneous removal of oil-soluble pollutants

Yang

Xia

et al. 2018

Cellulose

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One-step removal of insoluble oily compounds and water-miscible contaminants from water by underwater superoleophobic graphene oxide-coated cotton

Cited by 12 publications

References 30 publications

Bioinspired cellulose-based membranes in oily wastewater treatment

Bioinspired cellulose-based membranes in oily wastewater treatment

Investigating the effect of surface composition and morphology on oil/water separation efficiency of sponges coated with polymer nanocomposites

Multifunctional carbon aerogels from typha orientalis for oil/water separation and simultaneous removal of oil-soluble pollutants

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