Highly efficient and reusable superhydrophobic/superoleophilic polystyrene@ Fe3O4 nanofiber membrane for high-performance oil/water separation

Moatmed, Sara M.; Khedr, M.H.; El-Dek, S.I.; Kim, Hee Young; El‐Deen, Ahmed G.

doi:10.1016/j.jece.2019.103508

Cited by 67 publications

(46 citation statements)

References 52 publications

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“…Lin and coauthors [8] prepared fluorinated SiO 2 -sprayed PVDF membrane with CA of 171.8 • for water-petroleum ether emulsion separation with high flux of 2379 L/m 2 h and efficiency of 99.94%. Emulsions with higher viscosity oil are less studied, separation of such emulsions with membranes leads to lower fluxes, for instance, Zhang et al [9] tested polyethylene (PP) membrane with grafted poly(2-dimethylaminoethyl methacrylate) in diesel/water separation with fluxes of 20-60 L/m 2 h. Flux for gasoline/water is around 500 L/m 2 h, olive oil/water is around 200 L/m 2 h and sesame oil/water is around 100 L/m 2 h for PS@Fe 3 O 4 membranes [7] with separation efficiency of 96-92%. Now, track-etched membranes (TeMs) have a record narrow pore size distribution, which can have a positive effect on the selective properties of separation, leading to its improvement.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the works are devoted to the study of oil separation in water, where hexane, petroleum ether, toluene, or chloroform are used as oil. For example, authors [ 7 ] prepared superhydrophobic/super-oleophilic polystyrene-Fe 3 O 4 nanofiber membrane by electrospinning with CA of 162° for efficient hexane-water emulsion separation (flux is 5000 L/m 2 h). Lin and coauthors [ 8 ] prepared fluorinated SiO 2 -sprayed PVDF membrane with CA of 171.8° for water–petroleum ether emulsion separation with high flux of 2379 L/m 2 h and efficiency of 99.94%.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Hydrophobic PET Track-Etched Membranes for Separation of Oil–Water Emulsion

et al. 2021

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The paper describes the separation of an oil–water emulsion by filtration using poly(ethylene terephthalate) track-etched membranes (PET TeMs) with regular pore geometry and narrow pore size distribution. PET TeMs were modified with trichloro(octyl)silane to increase their hydrophobic properties. Conditions for the modification of PET TeMs with trichloro(octyl)silane were investigated. The results of changes in the pore diameters and the contact angle depend on the concentration of trichloro(octyl)silane and the soaking time are presented. The obtained samples were characterized by FTIR, AFM, SEM-EDX and gas-permeability test. Chloroform–water and cetane–water emulsions have been used as a test liquid for oil–water separation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of Hydrophobic PET Track-Etched Membranes for Separation of Oil–Water Emulsion

et al. 2021

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“…In a recent study, a magnetite intercalated polystyrene nanofibrous hybrid membrane was prepared by electrospinning. The prepared nanofibrous membrane proposed by Kim and El-deen’s group [ 146 ] showed superhydrophobic/superoleophilic property for a gravity driven oil/water separation (ultrahigh flux 5000 L/m −2 /h −1 , water contact angle 162°, 98.5% reusability for 50 cycles). Recently, electrospun polyacrylamide/polystyrene (PAM/PS) composite fiber with porous surface was utilized for fabrication of a fibrous membrane showing high efficiency for oil–water separation (water contact angle of 157.6° ± 2.5°, high oil-uptake capacity for edible and industrial oils about 154.5–202.2 g/g and good stability in 20 cycles) [ 147 ].…”

Section: Environmental Applicationmentioning

confidence: 99%

The Role of Electrospun Nanomaterials in the Future of Energy and Environment

2021

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Electrospinning is one of the most successful and efficient techniques for the fabrication of one-dimensional nanofibrous materials as they have widely been utilized in multiple application fields due to their intrinsic properties like high porosity, large surface area, good connectivity, wettability, and ease of fabrication from various materials. Together with current trends on energy conservation and environment remediation, a number of researchers have focused on the applications of nanofibers and their composites in this field as they have achieved some key results along the way with multiple materials and designs. In this review, recent advances on the application of nanofibers in the areas—including energy conversion, energy storage, and environmental aspects—are summarized with an outlook on their materials and structural designs. Also, this will provide a detailed overview on the future directions of demanding energy and environment fields.

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“…Polystyrene can also be associated with other things to fabricate superhydrophobic surfaces. For example, Sara M. Moatmed et al [25] designed a highly efficient and reusable superhydrophobic polystyrene/Fe 3 O 4 nanofiber membrane by using electrospinning with WCT 162˚.…”

Section: ) Fluorocarbonsmentioning

confidence: 99%

A Review: Natural Superhydrophobic Surfaces and Applications

Jin¹,

Xing²,

Chen³

2020

JBNB

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As the mimic biology becomes more and more important in the field of technology, superhydrophobic materials in the natural world have also become common. Superhydrophobic surfaces are used to prevent water droplets from wetting themselves which contain the micro-and nano-structures named hierarchical surfaces and exhibit the high water contact angles (WCA) that are greater than 150˚ and perfect application foreground in both our daily lives and industry. In this work, we first discuss several surface properties and their numerical models. And then we list the surface properties of a variety of natural superhydrophobic surfaces and sum up their similarities and differences. The most recent strategies of how to apply natural superhydrophobic surfaces are also introduced within the past several years. In addition, we talk about the limitations of the current generation of superhydrophobic surfaces and prospects which looks for solutions to the problems. This review aims to enable researchers to learn more about the principles and mechanisms of superhydrophobicity and perceive the new methods for creating and modifying it.

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Highly efficient and reusable superhydrophobic/superoleophilic polystyrene@ Fe3O4 nanofiber membrane for high-performance oil/water separation

Cited by 67 publications

References 52 publications

Preparation of Hydrophobic PET Track-Etched Membranes for Separation of Oil–Water Emulsion

Preparation of Hydrophobic PET Track-Etched Membranes for Separation of Oil–Water Emulsion

The Role of Electrospun Nanomaterials in the Future of Energy and Environment

A Review: Natural Superhydrophobic Surfaces and Applications

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