In situ polymerized superhydrophobic and superoleophilic nanofibrous membranes for gravity driven oil–water separation

Nanoscale ◽  
2013 ◽  
Vol 5 (23) ◽  
pp. 11657 ◽  
Author(s):  
Xiaomin Tang ◽  
Yang Si ◽  
Jianlong Ge ◽  
Bin Ding ◽  
Lifang Liu ◽  
...  
Keyword(s):  
Water Separation ◽  
Oil Water Separation ◽  
Gravity Driven ◽  
Oil Water ◽  
Nanofibrous Membranes

An in situ polymerization approach for the synthesis of superhydrophobic and superoleophilic nanofibrous membranes for oil–water separation

Nanoscale ◽  
2012 ◽  
Vol 4 (24) ◽  
pp. 7847 ◽  
Author(s):  
Yanwei Shang ◽  
Yang Si ◽  
Aikifa Raza ◽  
Liping Yang ◽  
Xue Mao ◽  
...  
Keyword(s):  
In Situ Polymerization ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Nanofibrous Membranes

In situ cross-linked superwetting nanofibrous membranes for ultrafast oil–water separation

2014 ◽  
Vol 2 (26) ◽  
pp. 10137-10145 ◽  
Author(s):  
Aikifa Raza ◽  
Bin Ding ◽  
Ghazala Zainab ◽  
Mohamed El-Newehy ◽  
Salem S. Al-Deyab ◽  
...  
Keyword(s):  
Efficient Method ◽  
Energy Efficient ◽  
High Efficacy ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Nanofibrous Membranes

Creating a practical and energy-efficient method with high efficacy to separate oil–water mixtures, especially those stabilized by surfactants, has proven to be extremely challenging.

scholarly journals Gravity-Driven Separation of Oil/Water Mixture by Porous Ceramic Membranes with Desired Surface Wettability

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 457
Author(s):  
Chunlei Ren ◽  
Wufeng Chen ◽  
Chusheng Chen ◽  
Louis Winnubst ◽  
Lifeng Yan
Keyword(s):  
Porous Ceramic ◽  
Ceramic Membranes ◽  
Separation Performance ◽  
Water Mixture ◽  
Alumina Membrane ◽  
Water Separation ◽  
Alumina Membranes ◽  
Oil Water Separation ◽  
Gravity Driven ◽  
Oil Water

Porous Al2O3 membranes were prepared through a phase-inversion tape casting/sintering method. The alumina membranes were embedded with finger-like pores perpendicular to the membrane surface. Bare alumina membranes are naturally hydrophilic and underwater oleophobic, while fluoroalkylsilane (FAS)-grafted membranes are hydrophobic and oleophilic. The coupling of FAS molecules on alumina surfaces was confirmed by Thermogravimetric Analysis and X-ray Photoelectron Spectroscopy measurements. The hydrophobic membranes exhibited desired thermal stability and were super durable when exposed to air. Both membranes can be used for gravity-driven oil/water separation, which is highly cost-effective. The as-calculated separation efficiency (R) was above 99% for the FAS-grafted alumina membrane. Due to the excellent oil/water separation performance and good chemical stability, the porous ceramic membranes display potential for practical applications.

scholarly journals Synthesis and Characterization of Highly Efficient Oil-Water Separation, Recyclable, Magnetic Particles CoFe2O4/SDB

2021 ◽  
Author(s):  
Cailin Liu ◽  
Li Yu ◽  
Yue Fan ◽  
Chang Li ◽  
Xianyan Ren ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Magnetic Particles ◽  
In Situ Polymerization ◽  
Solid Phase ◽  
Sol Gel ◽  
Water Separation ◽  
Practical Applications ◽  
Oil Water Separation ◽  
Oil Water

Abstract In the oil-water separation, the difficulty to recover and low hydrophobicity are key limitation factors for practical applications. In this paper, we design Cobalt ferrite hybird Polystyrene divinylbenzene microspheres (CoFe2O4/SDB), which were conducted through in-situ suspension copolymerization. The CoFe2O4 is prepared by low heat solid phase sol-gel method. It had been found that the CoFe2O4/SDB have a spherical structure, good adsorption behavior, highly hydrophobicity and even superhydrophobicity. The adsorption capacity of CoFe2O4/SDB composites could absorb kerosene up to 6 times of its own weight. Interestingly, kerosene can be easily separated from the surface of CoFe2O4/SDB particles with ultrasonic operation. CoFe2O4/SDB particles can still maintain good hydrophobicity and adsorption capacity of kerosene after 11 cycles after drying. With in situ polymerization of St、DVB and CoFe2O4, CoFe2O4/SDB as a promising absorbent of kerosene which has great potential in application of oil-water separation.

Reusable, salt-tolerant and superhydrophilic cellulose hydrogel-coated mesh for efficient gravity-driven oil/water separation

2018 ◽  
Vol 338 ◽  
pp. 271-277 ◽  
Author(s):  
Chenghong Ao ◽  
Rui Hu ◽  
Jiangqi Zhao ◽  
Xiaofang Zhang ◽  
Qingye Li ◽  
...  
Keyword(s):  
Salt Tolerant ◽  
Water Separation ◽  
Cellulose Hydrogel ◽  
Oil Water Separation ◽  
Gravity Driven ◽  
Oil Water
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