Superhydrophilic and underwater superoleophobic nanofibrous membrane with hierarchical structured skin for effective oil-in-water emulsion separation

2017 ◽  
Vol 5 (2) ◽  
pp. 497-502 ◽  
Author(s):  
Jianlong Ge ◽  
Jichao Zhang ◽  
Fei Wang ◽  
Zhaoling Li ◽  
Jianyong Yu ◽  
...  
Keyword(s):  
Nanofibrous Membrane ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water ◽  
Oil In Water Emulsion

A superwettable nanofibrous membrane with hierarchical structured skin for effective oil/water emulsion separation was fabricated via a combination of electrospinning and electrospraying.

scholarly journals Mussel-Inspired Fabrication of PDA@PAN Electrospun Nanofibrous Membrane for Oil-in-Water Emulsion Separation

Nanomaterials ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3434
Author(s):  
Haodong Zhao ◽  
Yali He ◽  
Zhihua Wang ◽  
Yanbao Zhao ◽  
Lei Sun
Keyword(s):  
Separation Efficiency ◽  
Low Cost ◽  
Nanofibrous Membrane ◽  
Water Separation ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Oil In Water Emulsion

Emulsified oily wastewater threatens human health seriously, and traditional technologies are unable to separate emulsion containing small sized oil droplets. Currently, oil–water emulsions are usually separated by special wettability membranes, and researchers are devoted to developing membranes with excellent antifouling performance and high permeability. Herein, a novel, simple and low-cost method has been proposed for the separation of emulsion containing surfactants. Polyacrylonitrile (PAN) nanofibers were prepared via electrospinning and then coated by polydopamine (PDA) by using self-polymerization reactions in aqueous solutions. The morphology, structure and oil-in-water emulsion separation properties of the as-prepared PDA@PAN nanofibrous membrane were tested. The results show that PDA@PAN nanofibrous membrane has superhydrophilicity and almost no adhesion to crude oil in water, which exhibits excellent oil–water separation ability. The permeability and separation efficiency of n-hexane/water emulsion are up to 1570 Lm−2 h−1 bar−1 and 96.1%, respectively. Furthermore, after 10 cycles of separation, the permeability and separation efficiency values do not decrease significantly, indicating its good recycling performance. This research develops a new method for preparing oil–water separation membrane, which can be used for efficient oil-in-water emulsion separation.

Mussel-inspired modification of a polymer membrane for ultra-high water permeability and oil-in-water emulsion separation

2014 ◽  
Vol 2 (26) ◽  
pp. 10225-10230 ◽  
Author(s):  
Hao-Cheng Yang ◽  
Kun-Jian Liao ◽  
He Huang ◽  
Qing-Yun Wu ◽  
Ling-Shu Wan ◽  
...  
Keyword(s):  
Water Permeability ◽  
Atmospheric Pressure ◽  
High Water ◽  
Polymer Membrane ◽  
Water Emulsion ◽  
Surface Hydrophilicity ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water ◽  
Oil In Water Emulsion

Polydopamine/polyethyleneimine-decorated membranes were fabricated with excellent surface hydrophilicity and high water permeability for oil/water emulsion separation under atmospheric pressure.

Hierarchical rough surfaces formed by LBL self-assembly for oil–water separation

2014 ◽  
Vol 2 (30) ◽  
pp. 11830-11838 ◽  
Author(s):  
Xiaoyu Li ◽  
Dan Hu ◽  
Kun Huang ◽  
Chuanfang Yang
Keyword(s):  
Stainless Steel ◽  
Removal Efficiency ◽  
Self Assembly ◽  
Water Separation ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Oil In Water Emulsion

Stainless steel felt modified with hierarchically structured coatings and hydrophobicity can achieve a removal efficiency of greater than 99% for oil-in-water emulsion separation.

Robust, sustainable and multifunctional nanofibers with smart switchability for water-in-oil and oil-in-water emulsion separation and liquid marble preparation

2019 ◽  
Vol 7 (46) ◽  
pp. 26456-26468 ◽  
Author(s):  
Mohammad Arshadi ◽  
Morteza Azizi ◽  
Hamid Souzandeh ◽  
Chen Tan ◽  
Seyed Mohammad Davachi ◽  
...  
Keyword(s):  
Water Emulsion ◽  
Advanced Technologies ◽  
Liquid Marble ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water ◽  
Oil In Water Emulsion ◽  
Processing Steps ◽  
Multiple Processing

Various membranes have been developed for the separation of oil/water mixtures; however, their fabrication requires toxic reagents, multiple processing steps, and advanced technologies.

Sensitivity of coalescence separation of oil–water emulsions using stainless steel felt enabled by LBL self-assembly and CVD

RSC Advances ◽  
2015 ◽  
Vol 5 (87) ◽  
pp. 71345-71354 ◽  
Author(s):  
Xiaoyu Li ◽  
Dan Hu ◽  
Lixia Cao ◽  
Chuanfang Yang
Keyword(s):  
Stainless Steel ◽  
Pore Size ◽  
Self Assembly ◽  
Surface Wettability ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil Water ◽  
Oil In Water Emulsion

Coalescence sensitivity to surface wettability and pore size of roughened stainless steel felt was revealed for oil-in-water emulsion separation.

Robust superhydrophobic attapulgite coated polyurethane sponge for efficient immiscible oil/water mixture and emulsion separation

2016 ◽  
Vol 4 (40) ◽  
pp. 15546-15553 ◽  
Author(s):  
Jian Li ◽  
Changcheng Xu ◽  
Yan Zhang ◽  
Rongfang Wang ◽  
Fei Zha ◽  
...  
Keyword(s):  
Separation Efficiency ◽  
Water Mixture ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Polyurethane Sponge ◽  
Oil Water ◽  
Oil In Water Emulsion

The superhydrophobic PU sponges separated oils from immiscible oil/water mixture and oil-in-water emulsion with the separation efficiency over 99.8%.

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