Membrane Surface Engineering with Bifunctional Zwitterions for Efficient Oil–Water Separation

2019 ◽  
Vol 11 (34) ◽  
pp. 31328-31337 ◽  
Author(s):  
Ping Li ◽  
Qingchun Ge
Keyword(s):  
Surface Engineering ◽  
Membrane Surface ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

Surface engineering with microstructured gel networks for superwetting membranes

2021 ◽  
Author(s):  
Yuandong Jia ◽  
Kecheng Guan ◽  
Pengfei Zhang ◽  
Qin Shen ◽  
Shengyao Wang ◽  
...  
Keyword(s):  
Surface Engineering ◽  
Water Harvesting ◽  
Structure And Properties ◽  
Water Separation ◽  
Distinct Structure ◽  
Oil Water Separation ◽  
Oil Water ◽  
Self Cleaning

Superwetting surfaces have several applications, such as self-cleaning, anti-fouling, anti-corrosion, water harvesting, and oil–water separation, owing to their distinct structure and properties. Hydrogel-based coatings are particularly attractive owing to their...

scholarly journals Surface Engineering of Ceramic Nanomaterials for Separation of Oil/Water Mixtures

2020 ◽  
Vol 8 ◽  
Author(s):  
Usama Zulfiqar ◽  
Andrew G. Thomas ◽  
Allan Matthews ◽  
David J. Lewis
Keyword(s):  
Surface Engineering ◽  
Oil Spills ◽  
Chemical Interaction ◽  
Low Cost ◽  
Water Mixture ◽  
Water Separation ◽  
Manufacturing Operations ◽  
Industrial Oil ◽  
Oil Water Separation ◽  
Oil Water

Oil/water mixtures are a potentially major source of environmental pollution if efficient separation technology is not employed during processing. A large volume of oil/water mixtures is produced via many manufacturing operations in food, petrochemical, mining, and metal industries and can be exposed to water sources on a regular basis. To date, several techniques are used in practice to deal with industrial oil/water mixtures and oil spills such as in situ burning of oil, bioremediation, and solidifiers, which change the physical shape of oil as a result of chemical interaction. Physical separation of oil/water mixtures is in industrial practice; however, the existing technologies to do so often require either dissipation of large amounts of energy (such as in cyclones and hydrocyclones) or large residence times or inventories of fluids (such as in decanters). Recently, materials with selective wettability have gained attention for application in separation of oil/water mixtures and surfactant stabilized emulsions. For example, a superhydrophobic material is selectively wettable toward oil while having a poor affinity for the aqueous phase; therefore, a superhydrophobic porous material can easily adsorb the oil while completely rejecting the water from an oil/water mixture, thus physically separating the two components. The ease of separation, low cost, and low-energy requirements are some of the other advantages offered by these materials over existing practices of oil/water separation. The present review aims to focus on the surface engineering aspects to achieve selectively wettability in materials and its their relationship with the separation of oil/water mixtures with particular focus on emulsions, on factors contributing to their stability, and on how wettability can be helpful in their separation. Finally, the challenges in application of superwettable materials will be highlighted, and potential solutions to improve the application of these materials will be put forward.

A superhydrophobic poly(lactic acid) electrospun nanofibrous membrane surface-functionalized with TiO2 nanoparticles and methyltrichlorosilane for oil/water separation and dye adsorption

2019 ◽  
Vol 43 (39) ◽  
pp. 15823-15831 ◽  
Author(s):  
Zixuan Zhou ◽  
Lejing Liu ◽  
Weizhong Yuan
Keyword(s):  
Methylene Blue ◽  
Lactic Acid ◽  
Tio2 Nanoparticles ◽  
Membrane Surface ◽  
Dye Adsorption ◽  
Nanofibrous Membrane ◽  
Poly Lactic Acid ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

A superhydrophobic PLA electrospun nanofibrous membrane surface-functionalized with TiO2 nanoparticles and methyltrichlorosilane can achieve oil/water separation and methylene blue adsorption.

Smart Sand by Surface Engineering: Toward Controllable Oil/Water Separation

2021 ◽  
Author(s):  
Jian Chang ◽  
Chisiang Ong ◽  
Yusuf Shi ◽  
Jiayin Yuan ◽  
Zeyad Ahmed ◽  
...  
Keyword(s):  
Surface Engineering ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

scholarly journals Robustly superhydrophobic polylactic acid nonwoven membranes for efficient oil/water separation

2021 ◽  
Author(s):  
Jun Lu ◽  
Chaofan Cui ◽  
Qihao Yu ◽  
Juanjuan Su ◽  
Jian Han
Keyword(s):  
Porous Materials ◽  
Polylactic Acid ◽  
Membrane Surface ◽  
Separation Performance ◽  
Water Separation ◽  
Nonwoven Materials ◽  
Complex Preparation ◽  
Oil Water Separation ◽  
Oil Adsorption ◽  
Oil Water

Abstract Oily wastewater is an urgent issue threatening the ecosystem and human health. Superhydrophobic porous materials are widely concerned as promising candidates for effective oil/water separation and oil adsorption. However, superhydrophobic porous materials are still confronted with frustrations such as complex preparation processes and secondary pollution to the environment. Superhydrophobic porous materials with biodegradability and a relatively simple preparation process are more attractive to practical application and environmental protection. In this work, biodegradable and industrially applied polylactic acid (PLA)nonwoven materials were used as porous membranes, then PLA nanoparticles were loaded on the membrane surface to construct the hierarchical rough structure. The modified PLA nonwoven membrane (Nano-PLA) shows superhydrophobicity and efficient oil/water separation performance. Moreover, strong mechanical strength and acceptable toughness are obtained. This work offers an easily controlled and industrially used pathway for the design of robust, highly selective, and biodegradable oil/water separation materials.

Polysulfone/Polyacrilonitrile Membrane for Oil/Water Separation

2017 ◽  
Vol 886 ◽  
pp. 145-149 ◽  
Author(s):  
Ahmad Kusumaatmaja ◽  
Najmudin Fauji ◽  
Kuwat Triyana
Keyword(s):  
Surface Properties ◽  
Water Permeability ◽  
Total Concentration ◽  
Membrane Surface ◽  
Water Separation ◽  
Electrospinning Method ◽  
Oil Water Separation ◽  
Oil Water

Polysulfone (PSF)/polyacrylonitrile (PAN) membrane had been developed by electrospinning method to investigate the ability of membrane for oil/water separation. The ratios of PSF to PAN were varied as 7:3, 5:5, 3:7, and 0:10 in 10wt% of total concentration. In general, ratio PSF to PAN 5:5 gave the best morphology with smooth nanofibers and good permeability. The results show that increase of PAN concentration leads to the increase of water permeability. The addition of PAN into PSF changed the membrane surface properties from hydrophobic to hydrophilic. PAN/PSF membrane with a ratio of PSF to PAN as 5:5, 3:7, and 0:10 were showing high resistant for oil. It suggested that PSF/PAN membrane with the large composition of PAN could be used as water/oil separator.

scholarly journals An overview of superhydrophobic ceramic membrane surface modification for oil-water separation

2021 ◽  
Author(s):  
Jamilu Usman ◽  
Mohd Hafiz Dzarfan Othman ◽  
Ahmad Fauzi Ismail ◽  
Mukhlis A. Rahman ◽  
Juhana Jaafar ◽  
...  
Keyword(s):  
Surface Modification ◽  
Ceramic Membrane ◽  
Membrane Surface ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water
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