Opposite and complementary: a superhydrophobic–superhydrophilic integrated system for high-flux, high-efficiency and continuous oil/water separation

2016 ◽  
Vol 4 (12) ◽  
pp. 4365-4370 ◽  
Author(s):  
Jing Liu ◽  
Li Wang ◽  
Fengyun Guo ◽  
Lanlan Hou ◽  
Yuee Chen ◽  
...  
Keyword(s):  
High Efficiency ◽  
Membrane Separation ◽  
Integrated System ◽  
High Flux ◽  
Separation System ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

A superhydrophobic/superhydrophilic dual-membrane separation system has been designed based on an opposite and complementary combination to achieve a high-flux, high-efficiency, continuous oil/water separation.

Continuous, high-flux and efficient oil/water separation assisted by an integrated system with opposite wettability

2018 ◽  
Vol 433 ◽  
pp. 374-380 ◽  
Author(s):  
Jian Li ◽  
Yifei Long ◽  
Changcheng Xu ◽  
Haifeng Tian ◽  
Yanxia Wu ◽  
...  
Keyword(s):  
Integrated System ◽  
High Flux ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

Dual Superlyophobic Copper Foam with Good Durability and Recyclability for High Flux, High Efficiency, and Continuous Oil–Water Separation

2018 ◽  
Vol 10 (11) ◽  
pp. 9841-9848 ◽  
Author(s):  
Wenting Zhou ◽  
Song Li ◽  
Yan Liu ◽  
Zhengzheng Xu ◽  
Sufeng Wei ◽  
...  
Keyword(s):  
High Efficiency ◽  
High Flux ◽  
Water Separation ◽  
Copper Foam ◽  
Oil Water Separation ◽  
Oil Water

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

Synthesis of graphene oxide–SiO2 coated mesh film and its properties on oil–water separation and antibacterial activity

2015 ◽  
Vol 73 (5) ◽  
pp. 1098-1103 ◽  
Author(s):  
Jun Liu ◽  
Wanxia He ◽  
Peng Li ◽  
Siying Xia ◽  
Xiaomeng Lü ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Environmental Stability ◽  
Layer By Layer ◽  
Oily Wastewater ◽  
Separation System ◽  
Water Separation ◽  
Silica Coatings ◽  
Oil Water Separation ◽  
Oil Water ◽  
Harsh Conditions

Oil–water separation has recently become a worldwide challenge due to the frequent occurrence of oil spill accidents and increasing industrial oily wastewater. In this work, the multifunctional mesh films with underwater oleophobicity and certain bacteriostatic effects are prepared by layer-by-layer assembly of graphene oxide-silica coatings on stainless steel mesh. The mesh film exhibits excellent environmental stability under a series of harsh conditions. The new, facile and reusable separation system is proposed to achieve deep treatment of oily wastewater, and the oil collection rate can reach over 99%.

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