Designing novel superwetting surfaces for high-efficiency oil–water separation: design principles, opportunities, trends and challenges

2020 ◽  
Vol 8 (33) ◽  
pp. 16831-16853 ◽  
Author(s):  
Lei Qiu ◽  
Yihan Sun ◽  
Zhiguang Guo
Keyword(s):  
High Efficiency ◽  
Design Principles ◽  
Water Separation ◽  
Separation Technology ◽  
Oil Water Separation ◽  
Oil Water

The limitations of traditional separation technology force people to find a more advanced separation technology, while the special wetting material has attracted the attention of most researchers.

scholarly journals Fabrication of silica/PVA-co-PE nanofiber membrane for oil/water separation

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Yuanli Chen ◽  
Hui Fan ◽  
Xinlin Zha ◽  
Wenwen Wang ◽  
Yi Wu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Silicone Oil ◽  
Hydroxyl Groups ◽  
Water Mixture ◽  
Silica Nanospheres ◽  
Nanofiber Membrane ◽  
Water Separation ◽  
Oil Water Separation ◽  
Silica Nanostructures ◽  
Oil Water

AbstractHigh efficiency and anti-pollution oil/water separation membrane has been widely explored and researched. There are a large number of hydroxyl groups on the surface of silica, which has good wettability and can be used for oil-water separation membranes. Hydrophilic silica nanostructures with different morphologies were synthesized by changing templates and contents of trimethylbenzene (TMB). Here, silica nanospheres with radical pores, hollow silica nanospheres and worm-like silica nanotubes were separately sprayed on the PVA-co-PE nanofiber membrane (PM). The abundance of hydroxyl groups and porous structures on PM surfaces enabled the absorption of silica nanospheres through hydrogen bonds. Compared with different silica nanostructures, it was found that the silica/PM exhibited excellent super-hydrophilicity in air and underwater “oil-hating” properties. The PM was mass-produced in our lab through melt-extrusion-phase-separation technique. Therefore, the obtained membranes not only have excellent underwater superoleophobicity but also have a low-cost production. The prepared silica/PM composites were used to separate n-hexane/water, silicone oil/water and peanut oil water mixtures via filtration. As a result, they all exhibited efficient separation of oil/water mixture through gravity-driven filtration.

Superhydrophilic Al2O3 composite meshes for continuous high-efficiency oil-water separation

2020 ◽  
Vol 274 ◽  
pp. 127892 ◽  
Author(s):  
Liren Zhang ◽  
Xi Deng ◽  
Hao Hu ◽  
Bihua Chen ◽  
Guiren Cheng ◽  
...  
Keyword(s):  
High Efficiency ◽  
Water Separation ◽  
Al2o3 Composite ◽  
Oil Water Separation ◽  
Oil Water

Janus Copper Mesh Film with Unidirectional Water Transportation Ability toward High Efficiency Oil/Water Separation

2017 ◽  
Vol 12 (16) ◽  
pp. 2085-2092 ◽  
Author(s):  
Zhongjun Cheng ◽  
Bohan Wang ◽  
Hua Lai ◽  
Pengchang Liu ◽  
Dongjie Zhang ◽  
...  
Keyword(s):  
High Efficiency ◽  
Water Separation ◽  
Water Transportation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Copper Mesh

Development of a novel high-efficiency dynamic hydrocyclone for oil–water separation

2018 ◽  
Vol 130 ◽  
pp. 266-273 ◽  
Author(s):  
Long Huang ◽  
Songsheng Deng ◽  
Jinfa Guan ◽  
Ming Chen ◽  
Weixing Hua
Keyword(s):  
High Efficiency ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water
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