Ultralight free-standing reduced graphene oxide membranes for oil-in-water emulsion separation

2015 ◽  
Vol 3 (40) ◽  
pp. 20113-20117 ◽  
Author(s):  
Na Liu ◽  
Miao Zhang ◽  
Weifeng Zhang ◽  
Yingze Cao ◽  
Yuning Chen ◽  
...  
Keyword(s):  
Separation Efficiency ◽  
Free Standing ◽  
Water Emulsion ◽  
Oil In Water ◽  
Reduced Graphene ◽  
Emulsion Separation ◽  
Oil In Water Emulsion ◽  
Oxide Membranes ◽  
High Separation ◽  
Graphene Oxide Membranes

Ultralight free-standing RGO membranes are capable of separating multiple types of surfactant stabilized oil-in-water emulsions with high separation efficiency.

Graphene oxide membranes with an ultra-large interlayer distance through vertically grown covalent organic framework nanosheets

2019 ◽  
Vol 7 (44) ◽  
pp. 25458-25466 ◽  
Author(s):  
Yanan Liu ◽  
Jingyuan Guan ◽  
Yanlei Su ◽  
Runnan Zhang ◽  
Jialin Cao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Interlayer Distance ◽  
Morphological Stability ◽  
Water Emulsion ◽  
Covalent Organic Framework ◽  
Oil In Water ◽  
Oil In Water Emulsion ◽  
Oxide Membranes ◽  
Graphene Oxide Membranes ◽  
Organic Framework

A GO-based membrane with an ultra-large interlayer distance of 42.2 nm is fabricated via intercalating nanoheterojunction into adjacent GO nanosheets, which exhibits superior morphological stability, and can be used to separate oil-in-water emulsion.

scholarly journals Superhydrophilic fluorinated polyarylate membranes via in situ photocopolymerization and microphase separation for efficient separation of oil-in-water emulsion

RSC Advances ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 958-962 ◽  
Author(s):  
Hui Li ◽  
Cuiping Zhou ◽  
Chunsheng Li ◽  
Xiaohui Li ◽  
Shuxiang Zhang
Keyword(s):  
Tensile Strength ◽  
Separation Efficiency ◽  
Microphase Separation ◽  
High Tensile Strength ◽  
Water Emulsion ◽  
Efficient Separation ◽  
Oil In Water ◽  
Oil In Water Emulsion ◽  
High Separation

We have developed a novel superhydrophilic FPAR membrane with high tensile strength by in situ photocopolymerization and microphase separation, which can effectively separate oil-in-water emulsions with high separation efficiency and flux.

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.

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%.

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.

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