Design and preparation of efficient, stable and superhydrophobic copper foam membrane for selective oil absorption and consecutive oil–water separation

2018 ◽  
Vol 142 ◽  
pp. 83-92 ◽  
Author(s):  
Jian Rong ◽  
Tao Zhang ◽  
Fengxian Qiu ◽  
Jicheng Xu ◽  
Yao Zhu ◽  
...  
Keyword(s):  
Oil Absorption ◽  
Water Separation ◽  
Copper Foam ◽  
Oil Water Separation ◽  
Oil Water

scholarly journals Facile Fabrication of Superhydrophobic Copper- Foam and Electrospinning Polystyrene Fiber for Combinational Oil–Water Separation

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 97 ◽  
Author(s):  
Yu-Ping Zhang ◽  
Jing-Hua Yang ◽  
Ling-Li Li ◽  
Cheng-Xing Cui ◽  
Ying Li ◽  
...  
Keyword(s):  
Interaction Mechanism ◽  
Lone Pair ◽  
Absorption Capacity ◽  
Oil Absorption ◽  
Sliding Angle ◽  
Water Contact ◽  
Water Separation ◽  
Copper Foam ◽  
Oil Water Separation ◽  
Oil Water

Membrane-based metal substrates with special surface wettability have been applied widely for oil/water separation. In this work, a series of copper foams with superhydrophobicity and superoleophilicity were chemically etched using 10 mg mL−1 FeCl3/HCl solution with consequent ultrasonication, followed by the subsequent modification of four sulfhydryl compounds. A water contact angle of 158° and a sliding angle lower than 5° were achieved for the copper foam modified using 10 mM n-octadecanethiol solution in ethanol. In addition, the interaction mechanism was initially investigated, indicating the coordination between copper atoms with vacant orbital and sulfur atoms with lone pair electrons. In addition, the polymeric fibers were electrospun through the dissolution of polystyrene in a good solvent of chlorobenzene, and a nonsolvent of dimethyl sulfoxide. Oil absorption and collection over the water surface were carried out by the miniature boat made out of copper foam, a string bag of as-spun PS fibers with high oil absorption capacity, or the porous boat embedded with the as-spun fibers, respectively. The findings might provide a simple and practical combinational method for the solution of oil spill.

Fabrication of robust 3D superhydrophobic material by a simple and low-cost method for oil-water separation and oil absorption

2017 ◽  
Vol 224 ◽  
pp. 117-124 ◽  
Author(s):  
Chuqi Zhang ◽  
Yanmei Li ◽  
Ningning Bai ◽  
Cui Tan ◽  
Peng Cai ◽  
...  
Keyword(s):  
Low Cost ◽  
Oil Absorption ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

A robust and stretchable superhydrophobic PDMS/PVDF@KNFs membrane for oil/water separation and flame retardancy

Nanoscale ◽  
2018 ◽  
Vol 10 (14) ◽  
pp. 6695-6703 ◽  
Author(s):  
Deke Li ◽  
Xuelian Gou ◽  
Daheng Wu ◽  
Zhiguang Guo
Keyword(s):  
Flame Retardancy ◽  
Oil Absorption ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water ◽  
Flame Retardation

A robust superhydrophobic PDMS/PVDF@KNFs membrane with excellent properties of deformation, stretchability, flame retardation, oil/water separation and oil absorption.

Silk fibroin-graphene oxide functionalized melamine sponge for efficient oil absorption and oil/water separation

2019 ◽  
Vol 497 ◽  
pp. 143762 ◽  
Author(s):  
Jian Zhou ◽  
Yan Zhang ◽  
Yongqiang Yang ◽  
Zhenfei Chen ◽  
Guangwen Jia ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Silk Fibroin ◽  
Oil Absorption ◽  
Water Separation ◽  
Oil Water Separation ◽  
Oil Water

A robust bilayer nanofilm fabricated on copper foam for oil–water separation with improved performances

2016 ◽  
Vol 4 (26) ◽  
pp. 10294-10303 ◽  
Author(s):  
Yabin Wang ◽  
Feng Lin ◽  
Jiaoyu Peng ◽  
Yaping Dong ◽  
Wu Li ◽  
...  
Keyword(s):  
Layer By Layer ◽  
Water Separation ◽  
Copper Foam ◽  
Layer By Layer Assembly ◽  
Oil Water Separation ◽  
Oil Water ◽  
Layer Assembly

In this work, a facile approach of covalent layer-by-layer assembly was applied to fabricate a bilayer nanofilm which renders roughened copper foam superhydrophobic with robust performances.

scholarly journals Fabrication of PDMS/GA Composite Materials by Pickering Emulsion Method and Its Application for Oil-Water Separation

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5283
Author(s):  
Biao Wang ◽  
Qingwang Liu ◽  
Zhenzhong Fan ◽  
Ting Liang ◽  
Qilei Tong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Organic Solvent ◽  
Functional Groups ◽  
Pickering Emulsion ◽  
Economic Benefits ◽  
Oil Absorption ◽  
Water Separation ◽  
Modified Graphene Oxide ◽  
Oil Water Separation ◽  
Oil Water

With the intensification of human activities, a large amount of oil and organic solvent waste has been created, resulting in serious ecological and environmental pollution. Therefore, how to balance environmental benefits and economic benefits control a large number of organic solvent and oil pollution is an urgent problem. To solve this problem, a highly efficient oil-water separation material was designed and prepared in this paper. Graphene oxide aerogels were synthesized by the Pickering emulsion and hydrothermal method, and then hydrophobically lipophilic polydimethylsiloxane (PDMS) reduced graphene oxide aerogel composites (PDMS/GA) were obtained by modification of PDMS. The surface functional groups, hydrophobicity, thermal stability, and micromorphology of the materials were tested by various characterization methods. Their properties were tested by an oil absorption test and repeated experiments. The oil absorption performance experiments and repeated performance experiments of PDMS/GA are reported. The number of oxy-gen-containing functional groups of the modified graphene oxide (GO) decreased, and the contact angle of water was 134.4°. The adsorption capacity of n-hexane was up to 18.5 times its own weight. The material has the advantages of being lightweight, easy to recover, good hydrophobicity and lipophilicity, and has the potential for large-scale applications in the field of oil-water separation.

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