Enhancing oil-in-water emulsion separation performance of polyvinyl alcohol hydrogel nanofibrous membrane by squeezing coalescence demulsification

2021 ◽  
pp. 119324
Author(s):  
Xu Zhu ◽  
Lei Zhu ◽  
Hui Li ◽  
Chunyu Zhang ◽  
Jinwei Xue ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Nanofibrous Membrane ◽  
Separation Performance ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil In Water Emulsion

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.

Hierarchical membranes with size-controlled nanopores from photofluidization of electrospun azobenzene polymer fibers

2017 ◽  
Vol 5 (35) ◽  
pp. 18762-18769 ◽  
Author(s):  
Hong Suk Kang ◽  
Hyesung Cho ◽  
Weerapha Panatdasirisuk ◽  
Shu Yang
Keyword(s):  
Polymer Fibers ◽  
Water Emulsion ◽  
Azobenzene Polymer ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil In Water Emulsion ◽  
Size Controlled

A hierarchical membrane consisting of precisely controlled nanopores on top of micropores is fabricatedviaphotofluidization for oil-in-water emulsion separation.

Functionalized PSf/SiO2 nanocomposite membrane for oil-in-water emulsion separation

Desalination ◽  
2011 ◽  
Vol 268 (1-3) ◽  
pp. 266-269 ◽  
Author(s):  
A.L. Ahmad ◽  
M.A. Majid ◽  
B.S. Ooi
Keyword(s):  
Nanocomposite Membrane ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil In Water Emulsion
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