Superhydrophobic, mechanically flexible and recyclable reduced graphene oxide wrapped sponge for highly efficient oil/water separation

Qiu, Lijuan; Zhang, Ruiyang; Zhang, Ying; Li, Chengjin; Zhang, Qian; Zhou, Ying

doi:10.1007/s11705-018-1751-6

Cited by 28 publications

(9 citation statements)

References 39 publications

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“…From the first use, the MF/rGO sponge exhibited the highest adsorption capacity (Q e ) values were about 102 g.g -1 , 107.5 g.g -1 , 110.5 g.g -1 and 112 g.g-1 for gasoline, diesel, palm oil and lubricant oil, respectively. This because of the adsorption performance of the sponge or foam is dependent on the polarity and density of various oils [19][20]. After 10 cycles, although the adsorption capacity values of the MF/rGO sponge were slightly decreased, but there were stilled higher than 98 g.g -1 , for all the oils removal test.…”

Section: Recyclability Of Mf/rgo Spongementioning

confidence: 97%

Effect of Graphene Oxide Precursor Loading on the Surface of Melamine-Formaldehyde/rGO Sponge with Enhanced Ultra-Hydrophobicity for Oils Removal

Jirasuttisarn¹,

Sriwong²

2020

NANO

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This work presented a facile, green and effective method to prepare the ultra-hydrophobic melamine-formaldehyde (MF) sponge loaded with reduced graphene oxide (rGO) by a conventional heating method using the various contents of graphene oxide, GO (1, 3, 5, 10 and 15 mg) precursor, and vitamin C as a reducing agent. These GO precursors were used to increase the roughness of the MF/rGO sponge surfaces. Then GO precursor, rGO, pristine MF sponge and as-prepared MF/rGO sponge samples were confirmed and characterized by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and water contact angle techniques. Moreover, the adsorption capacity, oils removal performance and recyclability of MF/rGO sponges were also investigated. The results showed that the water contact angle values were increased from 131° to 144.1° upon the increasing of GO precursor loading. The highest water contact angle (144.1°) exhibited the ultra-hydrophobic property by the sponge prepared using GO loading as 10 mg (MF/rGO-10 mg). The adsorption capacity (Q e) of the MF/rGO-10 mg sponge was higher than 102 g.g-1 for all the oils removal tested (palm oil, gasoline, diesel and lubricant oil), and had the highest value was about 112 g.g-1 for lubricant oil. Besides, MF/rGO sponge can be well-recycled use up to 10 times for all oils removal. Therefore, this study provides a new alternative method to prepare the MF sponge loaded with rGO (MF/rGO), which can be used and reused for the cleanup of oil spillages from water.

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Section: Recyclability Of Mf/rgo Spongementioning

confidence: 97%

Effect of Graphene Oxide Precursor Loading on the Surface of Melamine-Formaldehyde/rGO Sponge with Enhanced Ultra-Hydrophobicity for Oils Removal

Jirasuttisarn¹,

Sriwong²

2020

NANO

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“…Other cheap and environmentally sustainable alternatives to face oil spill clean-up are the three-dimensional (3D) aerogels and carbon-based sponges that can be obtained through different procedures [ 132 , 133 , 134 ]. Compared with traditional sorbents, the resulting 3D materials exhibit a larger oil sorption capacity, high hydrophobicity and oleophilicity, mechanical stability, large surface areas and are reusable and/or recyclable [ 135 , 136 , 137 , 138 , 139 ]. Recently, modified extended graphene (M-EG) with cetyl trimethyl ammonium bromide (CTAB) and potassium bromide (KBr) has been synthesized and demonstrated to be efficient in removing different oils from seawater at different sodium salt concentrations.…”

Section: Enms Employed For Marine Environment Remediation and Theimentioning

confidence: 99%

The Era of Nanomaterials: A Safe Solution or a Risk for Marine Environmental Pollution?

et al. 2021

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In recent years, the application of engineered nanomaterials (ENMs) in environmental remediation gained increasing attention. Due to their large surface area and high reactivity, ENMs offer the potential for the efficient removal of pollutants from environmental matrices with better performances compared to conventional techniques. However, their fate and safety upon environmental application, which can be associated with their release into the environment, are largely unknown. It is essential to develop systems that can predict ENM interactions with biological systems, their overall environmental and human health impact. Until now, Life-Cycle Assessment (LCA) tools have been employed to investigate ENMs potential environmental impact, from raw material production, design and to their final disposal. However, LCA studies focused on the environmental impact of the production phase lacking information on their environmental impact deriving from in situ employment. A recently developed eco-design framework aimed to fill this knowledge gap by using ecotoxicological tools that allow the assessment of potential hazards posed by ENMs to natural ecosystems and wildlife. In the present review, we illustrate the development of the eco-design framework and review the application of ecotoxicology as a valuable strategy to develop ecosafe ENMs for environmental remediation. Furthermore, we critically describe the currently available ENMs for marine environment remediation and discuss their pros and cons in safe environmental applications together with the need to balance benefits and risks promoting an environmentally safe nanoremediation (ecosafe) for the future.

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“…However, due to the high crystalline nature of the PP with impenetrable crystalline domains, it exhibits adsorption mechanism with sorption mostly takes place only at sorbent surfaces with inherently limited sorption capacity. In the past decade, extensive research efforts have been devoted to developing new types of sorbent materials with some success 10,22–33 . For example, Wang et al reported the high oil absorption polymer resins by polymerization from butyl methacrylate and kapok fiber 34 .…”

Section: Introductionmentioning

confidence: 99%

“…In the past decade, extensive research efforts have been devoted to developing new types of sorbent materials with some success. 10,[22][23][24][25][26][27][28][29][30][31][32][33] For example, Wang et al reported the high oil absorption polymer resins by polymerization from butyl methacrylate and kapok fiber. 34 Song et al introduced a new class of polymer absorbent by incorporating b-cyclodextrin into octadecyl acrylate and butyl acrylate monomers.…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensionally cross‐linked styrene‐methyl methacrylate‐divinyl benzene terpolymer networks for organic solvents and crude oil absorption

Krishnan

Aldawsari

Alsharaeh

2020

J of Applied Polymer Sci

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The present study reports, high-performance polymer absorbents for crude oil and organic solvents based on 3D cross-linked polystyrene-polymethyl methacrylate/divinyl benzene (PS-PMMA/DVB). The preparation of the 3D crosslinked polymer absorbents has been carried out by bulk polymerization method using styrene (S) and methyl methacrylate (MMA) monomers in the presence of DVB with azobisisobutyronitrile as an initiator. The prepared cross-linked polymer absorbents were characterized by Fourier transform infrared spectroscopy, thermogravimetric and differential scanning calorimetry, and dynamic mechanical analyses. The absorption kinetics, thermodynamics of the absorption process as well as the recyclability of the cross-linked polymer absorbents were investigated in detail. The developed 3D cross-linked PS-PMMA/DVB absorbents have demonstrated excellent absorption capacities for both organic solvents and crude oil. For instance, the developed polymer absorbent (PS-PMMA/DVB [1 wt%]) shows a maximum absorption capacity of 12 g/g for chloroform , 6 g/g for tetrahydrofuran, and 3 g/g for crude oil. The absorption capacities by the polymer absorbents show a direct relationship with the polarity of the solvents. Moreover, the change of absorption capacity after several repeated cycles of absorption/desorption was only marginal. The demonstrated absorption capacities and the excellent recyclability make polymer absorbents as potential candidates for the oilfield applications and produced water treatments.

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Superhydrophobic, mechanically flexible and recyclable reduced graphene oxide wrapped sponge for highly efficient oil/water separation

Cited by 28 publications

References 39 publications

Effect of Graphene Oxide Precursor Loading on the Surface of Melamine-Formaldehyde/rGO Sponge with Enhanced Ultra-Hydrophobicity for Oils Removal

Effect of Graphene Oxide Precursor Loading on the Surface of Melamine-Formaldehyde/rGO Sponge with Enhanced Ultra-Hydrophobicity for Oils Removal

The Era of Nanomaterials: A Safe Solution or a Risk for Marine Environmental Pollution?

Three‐dimensionally cross‐linked styrene‐methyl methacrylate‐divinyl benzene terpolymer networks for organic solvents and crude oil absorption

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