Electrospun frogspawn structured membrane for gravity-driven oil-water separation

Zhang, Mengjie; Ma, Wenjing; Wu, Shuang; Tang, Guosheng; Cui, Jiaxin; Zhang, Qilu; Chen, Fei; Xiong, Ranhua; Huang, Chaobo

doi:10.1016/j.jcis.2019.03.099

Cited by 133 publications

(43 citation statements)

References 61 publications

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“…The stability of the separation material is an essential parameter because the environment can be complex when oil‐water separation is practically applied . Thus, thermal and mechanical stability experiments is designed to investigate the stability characteristics of the membranes.…”

Section: Resultsmentioning

confidence: 99%

“…A wettability of electrospun membranes is another crucial factor to oil‐water separation ability . The WCA on the TiO 2 @PVDF/PAN membranes is tested and shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

“…The separation efficiency between 98% and 99% indicates electrospun membranes are effective in oil‐water separation. The oil flux (F) can be yielded using the following equation

normalF = \frac{V}{St}

where V is the volume of kerosene (ie, V = 100 mL), S is the effective geometric area (1256 mm 2 ), and t is the time required.…”

Section: Resultsmentioning

confidence: 99%

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Core‐sheath structured TiO₂@PVDF/PAN electrospun membranes for photocatalysis and oil‐water separation

et al. 2019

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This study uses PVDF, PAN, and coaxial electrospinning technique to build a core‐sheath structure for TiO2@PVDF/PAN electrospun membranes. The resulting electrospun membranes are compared with traditional electrospun membranes in terms of photocatalysis and oil‐water separation, which examines the influences of electrospinning fibrous structure. The test results show that the core‐sheath structure provides TiO2@PVDF/PAN electrospun membranes with a large diameter, high strength, a rough surface, a high photocatalysis, and good oil‐water separation. With PVDF as the sheath and PAN as the core, TiO2@PVDF/PAN electrospun membranes have a maximum strength of 8.96 MPa and exhibit 97% of rhodamine B pollutant after the exposure to the UV light. Moreover, the oil‐water separation rate is 99% and an oil flux is 40 163.79 L·m2·h−1, and the membrane maintains a high flux after 10 cycles, which makes TiO2@PVDF/PAN electrospun membranes an important candidate for treating wastewater produced in industry and daily life.

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Section: Resultsmentioning

confidence: 99%

“…A wettability of electrospun membranes is another crucial factor to oil‐water separation ability . The WCA on the TiO 2 @PVDF/PAN membranes is tested and shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

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Core‐sheath structured TiO₂@PVDF/PAN electrospun membranes for photocatalysis and oil‐water separation

et al. 2019

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“…Materials with hydrophobic and oleophilic characters have potential to be used in processing the oil/water separation due to oil spills, an important environmental issue (15). In this regard, we need to mention that recently oil spills result in severe economic and environmental problems (16)(17)(18)(19). Moreover, the oil containing wastewater in the routine life is a big scientific challenge because of additional contaminants such as heavy metals and organic dyes (18).…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, we need to mention that recently oil spills result in severe economic and environmental problems (16)(17)(18)(19). Moreover, the oil containing wastewater in the routine life is a big scientific challenge because of additional contaminants such as heavy metals and organic dyes (18). Therefore, it is essential to find proper and efficient methods to solve this worldwide existing issue (17,19).…”

Section: Introductionmentioning

confidence: 99%

Wetting behaviors of fluoroterpolymer fiber films

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Welch

et al. 2020

E-Polymers

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Various aspects of electrospun fibers prepared from terpolymer of tetrafluoroethylene (TFE), hexafluoropropylene (HFP), and vinylidene fluoride (VDF) (THV)/acetone solutions at two applied voltages, THV/acetone solutions having Texas montmorillonite with two ratios, and THV/ethyl acetate solutions using two needle sizes are described. Fibers from THV/acetone and THV/ethyl acetate solutions showed shallow indentations and pores, respectively. The clay, functioning as electrospinning agent, did not influence the fiber morphology, but yielded narrower fiber diameter distribution and the thinnest fibers. Heterogeneous fiber diameter distribution and increase in the fiber diameters were observed by lowering the voltage for fibers of THV/acetone solutions. Fibers from THV/ethyl acetate solutions had the largest diameter and the broadest diameter distribution. Electrospun THV fibers having both hydrophobic characteristics with nearly 140° water contact angles and oleophilic properties with oil contact angles less than 45° might have applications in areas such as water/oil separation.

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Highly Oriented Zirconium Nitride and Oxynitride Coatings Deposited via High‐Power Impulse Magnetron Sputtering: Crystal‐Facet‐Driven Corrosion Behavior in Domestic Wastewater

et al. 2021

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Herein, highly crystalline ZrxNy and ZrxNyOz coatings are achieved by the deposition via high‐power impulse magnetron sputtering. Various N2 and N2/O2 gas mixtures with argon are investigated. The chemical composition and, as a result, mechanical properties of the deposited layer can be tailored along with morphological and crystallographic structural changes. The corrosion resistance behavior is studied by potentiodynamic measurements and electrochemical impedance spectroscopy in a sample of synthetic wastewater designed to imitate real‐life domestic wastewater. The corrosion current density of the ZrxNyOz coating is in the range of 33–70 μA cm−2, whereas for the zirconium nitride layers, values below 1.0 μA cm−2 are achieved. The highest corrosion resistance of 64 nm year−1 is observed for the ZrxNy coating deposited with 1.00% N2 content in the gas mixture with a corrosion potential of −0.41 V Ag/AgCl.

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Electrospun frogspawn structured membrane for gravity-driven oil-water separation

Cited by 133 publications

References 61 publications

Core‐sheath structured TiO₂@PVDF/PAN electrospun membranes for photocatalysis and oil‐water separation

Core‐sheath structured TiO₂@PVDF/PAN electrospun membranes for photocatalysis and oil‐water separation

Wetting behaviors of fluoroterpolymer fiber films

Highly Oriented Zirconium Nitride and Oxynitride Coatings Deposited via High‐Power Impulse Magnetron Sputtering: Crystal‐Facet‐Driven Corrosion Behavior in Domestic Wastewater

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Electrospun frogspawn structured membrane for gravity-driven oil-water separation

Cited by 133 publications

References 61 publications

Core‐sheath structured TiO2@PVDF/PAN electrospun membranes for photocatalysis and oil‐water separation

Core‐sheath structured TiO2@PVDF/PAN electrospun membranes for photocatalysis and oil‐water separation

Wetting behaviors of fluoroterpolymer fiber films

Highly Oriented Zirconium Nitride and Oxynitride Coatings Deposited via High‐Power Impulse Magnetron Sputtering: Crystal‐Facet‐Driven Corrosion Behavior in Domestic Wastewater

Contact Info

Product

Resources

About

Core‐sheath structured TiO₂@PVDF/PAN electrospun membranes for photocatalysis and oil‐water separation

Core‐sheath structured TiO₂@PVDF/PAN electrospun membranes for photocatalysis and oil‐water separation