UiO-66-Coated Mesh Membrane with Underwater Superoleophobicity for High-Efficiency Oil–Water Separation

2018 ◽  
Vol 10 (20) ◽  
pp. 17301-17308 ◽  
Author(s):  
Xiaojing Zhang ◽  
Yuxin Zhao ◽  
Shanjun Mu ◽  
Chunming Jiang ◽  
Mingqiu Song ◽  
...  
Keyword(s):  
High Efficiency ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Underwater Superoleophobicity

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.

Chelation Assembly of Cellulose Nanohydrogel onto Flower-Like Structured Foam with Underwater Superoleophobicity for Highly Efficient Oil–Water Separation

NANO ◽  
2021 ◽  
pp. 2150061
Author(s):  
Yuntian Wan ◽  
Xue Lin ◽  
Zhongshuai Chang ◽  
Xiaohui Dai ◽  
Jiangdong Dai
Keyword(s):  
Water Flux ◽  
Separation Performance ◽  
Layer By Layer ◽  
Potential Candidate ◽  
Oily Wastewater ◽  
Water Separation ◽  
Composite Foam ◽  
Oil Water Separation ◽  
Oil Water ◽  
Underwater Superoleophobicity

Currently, with the increasingly serious pollution problem of oily wastewater, it is urgent to develop advanced materials and methods. In this work, a Fe(III)-CMC@Ni(OH)2@Ni composite foam with superhydrophilic and underwater superoleophobicity was fabricated by an in situ growth of flower-like Ni(OH)2 nanoparticles and chelated assembly of Fe(III)-CMC nanohydrogel via a layer-by-layer self assembly using Fe[Formula: see text] ion and carboxymethyl cellulose (CMC). The composite foam could separate various oil/water mixtures and exhibited excellent efficiency over 99%. This foam possessed ultrahigh water flux (220000[Formula: see text]L m[Formula: see text] h[Formula: see text] and better resistant to penetration pressure (1.3[Formula: see text]kPa). After 30 cycles, the oil–water separation performance reduced only 0.5%, but the foam structure was still stable that guarantees a better lifetime. Besides, this composite foam showed anti-fouling, unique durability and excellent corrosion resistance performance. Taking into account all good properties, Fe(III)-CMC@Ni(OH)2@Ni composite foam was expected to be a potential candidate for responding to all kinds of complex oily wastewater conditions.

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

Dual-Scaled Porous Nitrocellulose Membranes with Underwater Superoleophobicity for Highly Efficient Oil/Water Separation

2013 ◽  
Vol 26 (11) ◽  
pp. 1771-1775 ◽  
Author(s):  
Xuefei Gao ◽  
Li-Ping Xu ◽  
Zhongxin Xue ◽  
Lin Feng ◽  
Jitao Peng ◽  
...  
Keyword(s):  
Water Separation ◽  
Highly Efficient ◽  
Oil Water Separation ◽  
Oil Water ◽  
Underwater Superoleophobicity

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.

Sign in / Sign up

Export Citation Format

Share Document