PAN/PVA composite nanofibrous membranes for separating oil-in-water emulsion

Guo, Hui; Dong, Zhang; Lu, Jiang

doi:10.1007/s10965-022-02954-2

Cited by 4 publications

(3 citation statements)

References 67 publications

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“…Zheng et al prepared the ( l ‐cys)‐Ag@PDA@NM janus membrane with a positive surface that was superhydrophobic and a negative surface that was superhydrophilic, which had a separation efficiency of more than 99% for toluene‐in‐water emulsion and a membrane flux of 1500 L·m −2 ·h −1 ·bar −1 56 . Guo et al prepared PAN/PVA nanofibrous membranes by electrospinning method, which had a separation efficiency of more than 94% for oil‐in‐water emulsion and a membrane flux of 532 L·m −2 ·h −1 57 . Wu et al constructed the PAN@ZIF‐8 nanofibrous Janus membrane with special micro and nanostructures by using the bottom‐up electrospinning strategy, which had a separation efficiency of 99.1% for oil‐in‐water emulsion and a membrane flux of 1720 L·m −2 ·h −1 58 .…”

Section: Resultsmentioning

confidence: 99%

“…56 Guo et al prepared PAN/PVA nanofibrous membranes by electrospinning method, which had a separation efficiency of more than 94% for oil-in-water emulsion and a membrane flux of 532 LÁm À2 Áh À1 . 57 Wu et al constructed the PAN@ZIF-8 nanofibrous Janus membrane with special micro and nanostructures by using the bottom-up electrospinning strategy, which had a separation efficiency of 99.1% for oil-in-water emulsion and a membrane flux of 1720 LÁm À2 Áh À1 . 58 Bai et al prepared HNTs-DA-TA/PES composite membrane, which had a separation efficiency of 98% for dodecane-in-water emulsion and a membrane flux of 682.48 LÁm À2 Áh À1 .…”

Section: Separation Performance Of O/w Emulsionmentioning

confidence: 99%

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Preparation and application of ZIF‐67/gelatin porous composite membrane via high internal phase emulsion

Cao

Zhang

2023

Polymers for Advanced Techs

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The high internal phase emulsion (HIPE) template method is widely used to prepare porous functional materials because of its designable emulsion components and adjustable porosity. Herein, amphiphilic gelatin (GE) as the sole emulsion stabilizer, and no additional emulsifiers were added to prepare a stable GE‐HIPE membrane and its zeolitic imidazolate framework‐67 (ZIF‐67) hybrid composite membrane. The ZIF‐67/GE‐HIPE composite membrane has good lipophilicity by constructing dual micro‐nano structures by HIPE template and in situ growth of ZIF‐67. When ZIF‐67 was grown in situ, the water contact angle (CA) increased from 58.1 ± 2° for the GE membrane to 121 ± 1.9° for ZIF‐67/GE‐HIPE composite membranes. Besides, the minimum CA of organic solvent is 4.5 ± 0.7° (n‐hexane). The ZIF‐67/GE‐HIPE composite membranes exhibit good O/W emulsion separation properties and adsorption removal ability of organic pollutants. After 10 times of recycling emulsion separation, the emulsion separation capacity of the membrane was still greater than 99.4%. The lipophilic dye removal rate of the ZIF‐67/GE‐HIPE composite membrane was 2.37 times higher than that of GE‐HIPE, and the adsorption process conforms to the pseudo‐second‐order model. Thus, this work provides a strategy for the preparation of GE‐based hydrophobic modified membrane and also presents a typical treatment of adsorption‐separation of lipophilic substances.

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Section: Resultsmentioning

confidence: 99%

Section: Separation Performance Of O/w Emulsionmentioning

confidence: 99%

Preparation and application of ZIF‐67/gelatin porous composite membrane via high internal phase emulsion

Cao

Zhang

2023

Polymers for Advanced Techs

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“…Several common treatment methods such as the physical separation method, chemical separation method, biological separation method, and so forth were applied to address this issue [4][5][6]. However, these methods have complicated operations, make processes cumbersome, show a poor separation performance, and are prone to generating toxic gas and causing secondary pollution [7,8]. Hence, the membrane separation method has become a hot topic in both industry and academia because of its simple operation, low energy consumption, and high separation efficiency [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Superhydrophobic Composite Membranes with Honeycomb Porous Structure for Oil/Water Separation

et al. 2022

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Due to the low separation efficiency and poor separation stability, traditional polymer filtration membranes are prone to be polluted and difficult to reuse in harsh environments. Herein, we reported a nanofibrous membrane with a honeycomb–like pore structure, which was prepared by electrospinning and electrospraying. During the electrospraying process, the addition of polydimethylsiloxane and fumed SiO2 formed pores by electrostatic repulsion between ions, thereby increasing the membrane flux, subsequently reducing the surface energy, and increasing the surface roughness. The results show that when the content of SiO2 reaches 1.5 wt%, an ultra–high hydrophobic angle (162.1° ± 0.7°) was reached. After 10 cycles of oil–water separation tests of the composite membrane, the oil–water separation flux and separation efficiency was still as high as 5400 L m−2 h−1 and 99.4%, and the membrane maintained excellent self–cleaning ability.

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Water-oil dual-channels enabled exceptional anti-fouling performances for separation of emulsified oil pollutant

Cui

Wang

Hao

et al. 2023

Journal of Hazardous Materials

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PAN/PVA composite nanofibrous membranes for separating oil-in-water emulsion

Cited by 4 publications

References 67 publications

Preparation and application of ZIF‐67/gelatin porous composite membrane via high internal phase emulsion

Preparation and application of ZIF‐67/gelatin porous composite membrane via high internal phase emulsion

Fabrication of Superhydrophobic Composite Membranes with Honeycomb Porous Structure for Oil/Water Separation

Water-oil dual-channels enabled exceptional anti-fouling performances for separation of emulsified oil pollutant

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