scholarly journals Superhydrophilic fluorinated polyarylate membranes via in situ photocopolymerization and microphase separation for efficient separation of oil-in-water emulsion

RSC Advances ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 958-962 ◽  
Author(s):  
Hui Li ◽  
Cuiping Zhou ◽  
Chunsheng Li ◽  
Xiaohui Li ◽  
Shuxiang Zhang
Keyword(s):  
Tensile Strength ◽  
Separation Efficiency ◽  
Microphase Separation ◽  
High Tensile Strength ◽  
Water Emulsion ◽  
Efficient Separation ◽  
Oil In Water ◽  
Oil In Water Emulsion ◽  
High Separation

We have developed a novel superhydrophilic FPAR membrane with high tensile strength by in situ photocopolymerization and microphase separation, which can effectively separate oil-in-water emulsions with high separation efficiency and flux.

scholarly journals In-situ self-dissolving and regenerating synthesis of superwetting cotton fabric with excellent oil/water emulsions separation performance

2021 ◽  
Author(s):  
Sudong Yang ◽  
Lin Chen ◽  
Shanshan Wang ◽  
Shuai Liu
Keyword(s):  
Cotton Fabric ◽  
Separation Efficiency ◽  
Separation Performance ◽  
Hydrophilic Surface ◽  
Water Emulsion ◽  
Oil In Water ◽  
Underwater Superoleophobicity ◽  
Oil In Water Emulsion ◽  
Fabric Surface

Abstract The textiles with superhydrophilicity and underwater superoleophobicity have shown excellent separation performance for emulsified oil in wastewater, but they still suffer from complicated construct of hierarchical architectures and hydrophilic surface. Herein, a hydrophilic hierarchical layer of cellulose is constructed on commercial cotton fabric surface via a proposed in-situ self-dissolving and regenerating strategy. The cellulose provides both hydrophilic surface and hierarchical structural foundation for the remodeled cotton fabric (RCF) without any further chemical modification. The obtained RCF has strong superhydrophilicity, underwater superoleophobicity, and anti-oil-adhesion property, which can be applicable for efficient oil-in-water emulsion separation with high separation efficiency and recyclable antifouling performance. The developed RCF assembly strategy provides an excellent membrane for the separation of oil-in-water emulsion, and a new prospect for the convenient and universal construct of other superwetting cellulose-based materials.

Ultralight free-standing reduced graphene oxide membranes for oil-in-water emulsion separation

2015 ◽  
Vol 3 (40) ◽  
pp. 20113-20117 ◽  
Author(s):  
Na Liu ◽  
Miao Zhang ◽  
Weifeng Zhang ◽  
Yingze Cao ◽  
Yuning Chen ◽  
...  
Keyword(s):  
Separation Efficiency ◽  
Free Standing ◽  
Water Emulsion ◽  
Oil In Water ◽  
Reduced Graphene ◽  
Emulsion Separation ◽  
Oil In Water Emulsion ◽  
Oxide Membranes ◽  
High Separation ◽  
Graphene Oxide Membranes

Ultralight free-standing RGO membranes are capable of separating multiple types of surfactant stabilized oil-in-water emulsions with high separation efficiency.

scholarly journals Novel Polymer Material for Efficiently Removing Methylene Blue, Cu(II) and Emulsified Oil Droplets from Water Simultaneously

Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1393 ◽  
Author(s):  
Jie Cao ◽  
Jianbei Zhang ◽  
Yuejun Zhu ◽  
Shanshan Wang ◽  
Xiujun Wang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Separation Efficiency ◽  
Crosslinking Agent ◽  
Cost Effective ◽  
Preparation Process ◽  
Water Emulsion ◽  
Practical Applications ◽  
Oil In Water ◽  
Oil In Water Emulsion ◽  
Oil Fouling

The pollution of water resources has become a worldwide concern. The primary pollutants including insoluble oil, toxic dyes, and heavy metal ions. Herein, we report a polymer adsorbent, named SPCT, to remove the above three contaminants from water simultaneously. The preparation process of SPCT contains two steps. Firstly, a hydrogel composed of sulfonated phenolic resin (SMP) and polyethyleneimine (PEI) was synthesized using glutaraldehyde (GA) as the crosslinking agent, and the product was named SPG. Then SPCT was prepared by the reaction between SPG and citric acid (CA) at 170 ∘ C. SPCT exhibited an excellent performance for the removal of methylene blue (MB) and Cu(II) from aqueous solution. For a solution with a pollutant concentration of 50 mg L−1, a removal efficiency of above 90% could be obtained with a SPCT dosage of 0.2 g L−1 for MB, or a SPCT dosage of 0.5 g L−1 for Cu(II), respectively. SPCT also presented an interesting wettability. In air, it was both superhydrophilic and superoleophilic, and it was superoleophobic underwater. Therefore, SPCT could successfully separate oil-in-water emulsion with high separation efficiency and resistance to oil fouling. Additionally, SPCT was easily regenerated by using dilute HCl solution as an eluent. The outstanding performance of SPCT and the efficient, cost-effective preparation process highlight its potential for practical applications.

Efficient separation of crude oil-in-water emulsion based on a robust underwater superoleophobic titanium dioxide-coated mesh

2020 ◽  
Vol 44 (7) ◽  
pp. 2705-2713 ◽  
Author(s):  
Weimin Liu ◽  
Mengke Cui ◽  
Yongqian Shen ◽  
Peng Mu ◽  
Yaoxia Yang ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Crude Oil ◽  
Photocatalytic Degradation ◽  
Water Emulsion ◽  
Efficient Separation ◽  
Oil In Water ◽  
Oil In Water Emulsion

Robust underwater superoleophobic TiO2-coated meshes were used for the separation of crude oil-in-water emulsion and photocatalytic degradation.

Nanocomposite Deposited Membrane for Oil-in-Water Emulsion Separation with in Situ Removal of Anionic Dyes and Surfactants

Langmuir ◽  
2017 ◽  
Vol 33 (30) ◽  
pp. 7380-7388 ◽  
Author(s):  
Na Liu ◽  
Qingdong Zhang ◽  
Ruixiang Qu ◽  
Weifeng Zhang ◽  
Haifang Li ◽  
...  
Keyword(s):  
Anionic Dyes ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil In Water Emulsion

Ultrafast nano-structuring of superwetting Ti foam with robust antifouling and stability towards efficient oil-in-water emulsion separation

Nanoscale ◽  
2019 ◽  
Vol 11 (38) ◽  
pp. 17607-17614 ◽  
Author(s):  
Shuai Yang ◽  
Kai Yin ◽  
Junrui Wu ◽  
Zhipeng Wu ◽  
Dongkai Chu ◽  
...  
Keyword(s):  
Rapid Method ◽  
Water Emulsion ◽  
Efficient Separation ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil In Water Emulsion

We report a simple, rapid method to prepare robust superwetting Ti foam for efficient separation of oil-in-water emulsions.

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