Superhydrophobic sponges based on green deep eutectic solvents for spill oil removal from water

Makoś, Patrycja; Słupek, Edyta; Małachowska, Aleksandra

doi:10.1016/j.jhazmat.2021.127972

Cited by 34 publications

(14 citation statements)

References 59 publications

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“…3,7 Unfortunately, the inherent amphiphilicity of the MS inhibits the efficient oil removal from water. 8 As a result, enhancing the selectivity of the MS and altering the wettability is fundamental for amplifying its performance in oil-water mixture separation. 9 Synthetic superhydrophobic surfaces are developed by employing two ways based on the mimicry of natural superhydrophobic phenomena: (i) using micron or nanometer-scale surface roughness, and (ii) applying chemical hydrophobicity, as it is known that the MS can be functionalized via its secondary amine groups for further chemical modifications.…”

Section: Introductionmentioning

confidence: 99%

“…An economical, compact 3‐D melamine sponge (MS) with high elasticity, fire resistance, environmental friendliness, and an innate porous frame appears as a prospective approach in considerable oily wastewater treatment 3,7 . Unfortunately, the inherent amphiphilicity of the MS inhibits the efficient oil removal from water 8 . As a result, enhancing the selectivity of the MS and altering the wettability is fundamental for amplifying its performance in oil–water mixture separation 9 .…”

Section: Introductionmentioning

confidence: 99%

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A multifunctional non‐fluorinated flame retardant superhydrophobic 3‐D porous material for highly selective oil spill treatment and removal of dyes

Aier,

Dhar Purkayastha

2023

J of Applied Polymer Sci

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The environment and global healthcare are at risk from oily wastewater accumulation and spills. Hence, porous sponge materials are widely sought for remedial oil cleanups. Materials with superhydrophobic and photocatalytic characteristics are implemented for extensive use besides oil–water separation, self‐cleaning, and removal of dyes. Regardless of the various upsides, few materials display both of these features jointly. Most nanomaterial photocatalysts are susceptible to the action of ultraviolet (UV) light irradiation, which often inhibits their hydrophobicity. Here in this work, a photocatalyst such as ZnO was coated on a porous 3‐D melamine sponge (MS). To preserve the hydrophobicity without sacrificing the photocatalytic behavior, ZnO coated melamine sponge was modified with transparent polydimethylsiloxane (PDMS) to obtain MS/ZnO/PDMS. The obtained superhydrophobic photocatalytic sponge exhibits exceptional oil adsorption capacity, superior stability even under severe conditions and the ability to remove organic dyes. Remarkably, the sponge exhibits outstanding compressive strength and fire resistance properties, indicating the possible utilization in a prolonged practical execution. As a result, this technique might pave the way for the creation of a comprehensive design for an improved superhydrophobic photocatalytic sponge with high stability and recyclability.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A multifunctional non‐fluorinated flame retardant superhydrophobic 3‐D porous material for highly selective oil spill treatment and removal of dyes

Aier,

Dhar Purkayastha

2023

J of Applied Polymer Sci

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“…9 In addition, absorption materials are not easy to be affected by pH, [10][11][12] temperature 10,11 and other factors, and now more and more absorption materials with superior absorption capacity and good selectivity are applied to various conditions. For example, modified resins, 13,14 composite sponges, 10,15,16 carbon-based materials, [17][18][19] graphene composites, 20,21 natural biomass materials, [22][23][24] etc. Modified resins 13 are undegradable material.…”

Section: Introductionmentioning

confidence: 99%

A hydrophobic/oleophilic silica‐cellulose composite aerogel for oil–water separation

Sun

Bai

Wang

et al. 2023

J of Applied Polymer Sci

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A cellulose aerogel with very low overall density is fabricated by freeze‐drying aqueous cellulose solution. A hydrophobic/oleophilic cellulose aerogel is further fabricated by coating the cellulose aerogel with hexyltrimethoxysilane‐modified SiO2 nanoparticles. The features of the developed hydrophobic/oleophilic cellulose aerogel are characterized with density and porosity measurement, infrared spectroscopy, X‐ray photoelectron spectroscopy, scanning electron microscopy, and contact angle measurement. Finally, the oil absorption performance of the developed hydrophobic/oleophilic cellulose aerogel is investigated. The results show that SiO2 nanoparticles have been successfully loaded on the surface of the aerogel backbone after fulfillment of fabrication, and the surface of the aerogel turns to be hydrophobic/oleophilic (water contact angle 131° and oil contact angle 0°). The oil absorption experiment results show that the absorption capacity for organic solvents is from 10 to 21 times the initial aerogel weight, depending on the density of the absorbed organic solvents. In addition, the aerogel still maintains good stability in high temperature, strong acid or strong base conditions. Furthermore, the aerogel also shows good performance in separating oil from oil–water mixtures. This hydrophobic/oleophilic cellulose aerogel can be a promising choice for remedying water pollution caused by oil contamination.

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“…[5][6][7][8] Although various oil-water separation technologies such as chemical dispersion, gravity separation, bioremediation and in situ burning have been implemented to separate oil and organic solvents from oily wastewater, these methods are still limited by high cost, low absorption capacity, secondary pollution, limited reusability and inefficient removal of organics. [9][10][11] Compared with these methods, the physical adsorption method has attracted considerable attention because of its simple operation, low energy consumption, high removal efficiency and environmental friendliness. [12][13][14] However, the design and development of functionalized adsorbent materials used in oil-water separation is still a challenge.…”

Section: Introductionmentioning

confidence: 99%

A dual-functional superhydrophobic PDMS@ZnO@MS sponge for highly efficient oil–water separation and photocatalytic degradation

Li,

Fu,

Jiang

et al. 2023

New J. Chem.

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Superhydrophobic sponges based on green deep eutectic solvents for spill oil removal from water

Cited by 34 publications

References 59 publications

A multifunctional non‐fluorinated flame retardant superhydrophobic 3‐D porous material for highly selective oil spill treatment and removal of dyes

A multifunctional non‐fluorinated flame retardant superhydrophobic 3‐D porous material for highly selective oil spill treatment and removal of dyes

A hydrophobic/oleophilic silica‐cellulose composite aerogel for oil–water separation

A dual-functional superhydrophobic PDMS@ZnO@MS sponge for highly efficient oil–water separation and photocatalytic degradation

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