Hydrophilic SPE/MPTES-PAN electrospun membrane prepared via click chemistry for high efficiency oil–water separation

Author(s):  
Baosheng Shen ◽  
Chunxiao Du ◽  
Wei Wang ◽  
Dan Yu
2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Yuanli Chen ◽  
Hui Fan ◽  
Xinlin Zha ◽  
Wenwen Wang ◽  
Yi Wu ◽  
...  

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.


2020 ◽  
Vol 274 ◽  
pp. 127892 ◽  
Author(s):  
Liren Zhang ◽  
Xi Deng ◽  
Hao Hu ◽  
Bihua Chen ◽  
Guiren Cheng ◽  
...  

2020 ◽  
Vol 8 (33) ◽  
pp. 16831-16853 ◽  
Author(s):  
Lei Qiu ◽  
Yihan Sun ◽  
Zhiguang Guo

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.


2017 ◽  
Vol 12 (16) ◽  
pp. 2085-2092 ◽  
Author(s):  
Zhongjun Cheng ◽  
Bohan Wang ◽  
Hua Lai ◽  
Pengchang Liu ◽  
Dongjie Zhang ◽  
...  

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

2020 ◽  
Vol 22 (2) ◽  
pp. 504-512 ◽  
Author(s):  
Lei Kang ◽  
Bin Wang ◽  
Jinsong Zeng ◽  
Zheng Cheng ◽  
Jinpeng Li ◽  
...  

A degradable dual lignocellulosic fiber with superwetting characteristics was successfully fabricated by a strategically adjusted condensation reaction of melamine and formaldehyde, maintaining high efficiency for oil/water mixture separation.


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