Robust magnetic polystyrene foam for high efficiency and removal oil from water surface

Yu, Liping; Hao, Gazi; Xiao, Lei; Yin, Qiushi; Xia, Mengting; Jiang, Wei

doi:10.1016/j.seppur.2016.09.022

Cited by 43 publications

(22 citation statements)

References 42 publications

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“…Yu et al [71] successfully fabricated a strong magnetic polystyrene foam that withstood compression, showed good oil absorption capacity and was reusable. They reported the preparation of oleic acid-coated magnetic Fe 3 O 4 particles, which were introduced into the foam using the ultrasonic dispersion method, resulting in a highly hydrophobic magnetic polystyrene foam.…”

Section: Polystyrene (Ps)mentioning

confidence: 99%

Materials and Technologies for the Tertiary Treatment of Produced Water Contaminated by Oil Impurities through Nonfibrous Deep-Bed Media: A Review

Sobolčiak

Popelka

Tanvir

et al. 2020

Water

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This review covers various aspects of the treatment of emulsified oil/water mixtures and is particularly focused on tertiary treatment, which means the reduction of the oil content from 70–100 ppm to below 10 ppm, depending on national regulations for water discharge. Emulsified oil/water mixtures frequently occurs in water treatment processes because, in the petroleum industry, chemically enhanced oil recovery leads to the production of a vast amount of oil-emulsified wastewater. This review is focused on various aspects of tertiary treatment via granular deep-bed filtration. The importance of polymeric materials, as well as carbon nanostructures, which may be an alternative to the current media have been highlighting. The particular potential of polymers is based on their broad availability and low price (particularly for polyolefins), the simple treatment of their surfaces through a variety of chemical and physical methods to design surfaces with tailored surface free energy (wettability), and the porosity. Polymer technology offers a variety of well-established methods for designing foams with tailored porosity, which, together with appropriately tuned surface energy and controlled roughness, would open new avenues for the production of foamy media for efficient oil/water separation. Additionally, a crucial inventions in deep-bed filtration is discussed.

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Section: Polystyrene (Ps)mentioning

confidence: 99%

Materials and Technologies for the Tertiary Treatment of Produced Water Contaminated by Oil Impurities through Nonfibrous Deep-Bed Media: A Review

Sobolčiak

Popelka

Tanvir

et al. 2020

Water

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show abstract

“…A wide range of sorbent materials has been reported (Wahi et al 2014;Sabir 2015;Pintor et al 2016;van Gelderen et al 2017;Hilário et al 2019), which distribute mainly in three classes: inorganic, synthetic polymers, and natural. Inorganic sorbents are composed of materials such as vermiculite, zeolite, silica, and perlite (Mysore et al 2005;Bastani et al 2006;Zadaka-Amir et al 2013;Yu et al 2017). Their performance is limited by low oil sorption capacity, oil-water selectivity, inadequate buoyancy, and nonbiodegradability.…”

Section: Introductionmentioning

confidence: 99%

Crude oil removal using Calotropis procera

Anjos

Hilário

Juviniano

et al. 2020

BioRes

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Calotropis procera (CP) fiber is a natural and renewable material with great lumen and hydrophobic-oleophilic characteristics, providing it with a good oil absorption capacity. In order to increase the absorption efficiency of organic oils and solvents, CP fiber was treated with either 0.1 M NaOH (CPNaOH), 1% NaClO2 (CPNaClO2), or hydrothermal conditions (CPHT) in an effort to improve its ability to remove crude oil from leaks or spills. The fibers were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy with field emission (SEM-FEG), and wettability for water and diesel. The fibers CPHT, CPNaOH, and CPNaClO2 showed excellent hydrophobic-oleophilic properties and good crude oil absorption capacity in water 99.2 g/g, 103.9 g/g, and 92.0 g/g. The absorption after 60 min for most fibers in dry systems or with a layer of oil floating on water exceeded 90% of its absorption capacity for the time of 1440 min. The CPNaOH after 6 runs absorbed 445.8 g of crude oil per gram of fiber. Based on the results, the treated fibers can be considered an alternative for the removal of oil from leaks and spills due to the high availability and excellent absorption property for various oils.

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“…In order to overcome the limitations of magnetoelastic solids (i.e., material density higher than 3000 kg/m 3 , high elastic moduli, high viscosity matrix during the particles manipulation by the magnetic field), ME polymeric foams were developed. They combine the lightness of porous structures with the lower magnetic field requirements in order to (a) induce the alignment of the particles (low viscosity matrices) [ 12 , 13 , 14 , 15 , 16 , 17 ] and (b) exploit the peculiar functional properties [ 18 , 19 , 20 , 21 , 22 ], which depend on the polymeric matrix and the degree of porosity of the cellular structure. ME foams open to the possibility of producing lightweight smart structures for applications requiring low forces and large deformations, high sensitivity, and low weight.…”

Section: Introductionmentioning

confidence: 99%

Reinforced Smart Foams Produced with Time-Profiled Magnetic Fields

et al. 2020

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Polymeric smart foams are lightweight and multifunctional porous materials that are sensitive to the magnetic field due to the presence of magnetic particles embedded in the matrix. Recently, a constant magnetic field has been exploited to align the particles along the magnetic field lines during the formation of the porous structure. In this paper, a new field-structuring process was developed that makes use of a time-profiled magnetic field during the foaming process to control the geometrical features of the particles aggregates. The effects of magnetic field strength as well as the switch-on and switch-off times on the magnetoelastic behavior of the smart foams were investigated. It was proven that the alignment of the particles results in both a strong relative sensitivity to the magnetic field and a positive stress change, whose extent depends on the geometrical features of the developed aggregates.

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Robust magnetic polystyrene foam for high efficiency and removal oil from water surface

Cited by 43 publications

References 42 publications

Materials and Technologies for the Tertiary Treatment of Produced Water Contaminated by Oil Impurities through Nonfibrous Deep-Bed Media: A Review

Materials and Technologies for the Tertiary Treatment of Produced Water Contaminated by Oil Impurities through Nonfibrous Deep-Bed Media: A Review

Crude oil removal using Calotropis procera

Reinforced Smart Foams Produced with Time-Profiled Magnetic Fields

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