Papilla-like magnetic particles with hierarchical structure for oil removal from water

Xu, Li-Ping; Wu, Xiaolong; Meng, Jing; Peng, Jitao; Wen, Yongqiang; Zhang, Xueji; Wang, Shutao

doi:10.1039/c3cc44003f

Cited by 71 publications

(45 citation statements)

References 19 publications

(18 reference statements)

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“…3a-c, were characterized by four [25]. However, the XRD peaks corresponding to ␣-Fe 2 O 3 and ferric(hydr) oxides did not appear in the Cu 2+ treated ZVI sample at pH 4.0 (Fig.…”

Section: Influence Of Wmf On the Morphology And Corrosion Products Ofmentioning

confidence: 95%

Enhanced paramagnetic Cu2+ ions removal by coupling a weak magnetic field with zero valent iron

Xiao

Qiao

et al. 2015

Journal of Hazardous Materials

116

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“…3a-c, were characterized by four [25]. However, the XRD peaks corresponding to ␣-Fe 2 O 3 and ferric(hydr) oxides did not appear in the Cu 2+ treated ZVI sample at pH 4.0 (Fig.…”

Section: Influence Of Wmf On the Morphology And Corrosion Products Ofmentioning

confidence: 95%

Enhanced paramagnetic Cu2+ ions removal by coupling a weak magnetic field with zero valent iron

Xiao

Qiao

et al. 2015

Journal of Hazardous Materials

116

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“…Recently, various hydrophobic polymers have been coated onto the iron oxide particles to form core-shell structures. [76][77][78][79][80][81][82][83] The hydrophobic shell ensures the selective absorption towards oils, and the iron oxide core could respond to an external magnetic fi eld, which enables easy manipulation and collection. For example, Wang et al fabricated Fe 3 O 4 @polydopamine@Ag hybrid nanoparticles.…”

Section: Particle and Powdered Absorbentsmentioning

confidence: 99%

Recent Development of Advanced Materials with Special Wettability for Selective Oil/Water Separation

Cheng

Fane

et al. 2016

Small

741

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The increasing number of oil spill accidents have a catastrophic impact on our aquatic environment. Recently, special wettable materials used for the oil/water separation have received significant research attention. Due to their opposing affinities towards water and oil, i.e., hydrophobic and oleophilic, or hydrophilic and oleophobic, such materials can be used to remove only one phase from the oil/water mixture, and simultaneously repel the other phase, thus achieving selective oil/water separation. Moreover, the synergistic effect between the surface chemistry and surface architecture can further promote the superwetting behavior, resulting in the improved separation efficiency. Here, recently developed materials with special wettability for selective oil/water separation are summarized and discussed. These materials can be categorized based on their oil/water separating mechanisms, i.e., filtration and absorption. In each section, representative studies will be highlighted, with emphasis on the materials wetting properties and innovative aspects. Finally, challenges and future research directions in this emerging and promising research field will be briefly described.

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“…[33][34][35][36] However, the good mobility and dispersibility of superhydrophobic particles on water surface prohibit their large-scale application. Immobilization of magnetic particles on porous sponges to form magnetic and superhydrophobic sponges is an effective approach to overcome the problems.…”

Section: Introductionmentioning

confidence: 99%

Magnetic, Durable, and Superhydrophobic Polyurethane@Fe₃O₄@SiO₂@Fluoropolymer Sponges for Selective Oil Absorption and Oil/Water Separation

Li²,

Li³

et al. 2015

ACS Appl. Mater. Interfaces

416

198

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Magnetic, durable, and superhydrophobic polyurethane (PU) sponges were fabricated by chemical vapor deposition (CVD) of tetraethoxysilane (TEOS) to bind the Fe3O4 nanoparticles tightly on the sponge and then dip-coating in a fluoropolymer (FP) aqueous solution. The sponges were characterized using scanning electron microscopy and other analytical techniques. The effects of CVD time of TEOS and FP concentration on wettability, mechanical properties, oil absorbency, and oil/water selectivity of the sponges were also investigated. The sponges exhibit fast magnetic responsivity and excellent superhydrophobicity/superoleophilicity (CAwater = 157° and CAoil ≈ 0°). The sponges also show very high efficiency in oil/water separation and could, driven by a magnet, quickly absorb floating oils on the water surface and heavy oils under water. Moreover, the PU@Fe3O4@SiO2@FP sponges could be used as membranes for oil/water separation and for continuous separation of large amounts of oil pollutants from the water surface with the help of a pump. The in turn binding of Fe3O4 nanoparticles, SiO2, and FP can also improve mechanical properties of the PU sponge. The sponges maintain the superhydrophobicity even when they are stretched with 200% strain or compressed with 50% strain. The sponges also show excellent mechanical stability, oil stability, and reusability in terms of superhydrophobicity and oil absorbency. The magnetic, durable, and superhydrophobic PU sponges are very promising materials for practical oil absorption and oil/water separation.

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Papilla-like magnetic particles with hierarchical structure for oil removal from water

Cited by 71 publications

References 19 publications

Enhanced paramagnetic Cu2+ ions removal by coupling a weak magnetic field with zero valent iron

Enhanced paramagnetic Cu2+ ions removal by coupling a weak magnetic field with zero valent iron

Recent Development of Advanced Materials with Special Wettability for Selective Oil/Water Separation

Magnetic, Durable, and Superhydrophobic Polyurethane@Fe₃O₄@SiO₂@Fluoropolymer Sponges for Selective Oil Absorption and Oil/Water Separation

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Papilla-like magnetic particles with hierarchical structure for oil removal from water

Cited by 71 publications

References 19 publications

Enhanced paramagnetic Cu2+ ions removal by coupling a weak magnetic field with zero valent iron

Enhanced paramagnetic Cu2+ ions removal by coupling a weak magnetic field with zero valent iron

Recent Development of Advanced Materials with Special Wettability for Selective Oil/Water Separation

Magnetic, Durable, and Superhydrophobic Polyurethane@Fe3O4@SiO2@Fluoropolymer Sponges for Selective Oil Absorption and Oil/Water Separation

Contact Info

Product

Resources

About

Magnetic, Durable, and Superhydrophobic Polyurethane@Fe₃O₄@SiO₂@Fluoropolymer Sponges for Selective Oil Absorption and Oil/Water Separation