Corrosion resistance for superwetting immiscible oil/water separation porous materials

In this paper, we first fabricate a 3D porous FZCF (FAS-modified ZnO-grown copper foam) with robust superhydrophobicity in air and superoleophilicity under water and the repeatable superwettability, and then mainly explore and analyze its corrosion resistance. The superhydrophobic-superoleophilic FZ...

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Published inRSC advances Vol. 9; no. 23; pp. 12854 - 12863
Main Authors Rong, Wanting, Zhang, Haifeng, Tuo, Yanjing, Chen, Weiping, Liu, Xiaowei
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 25.04.2019
The Royal Society of Chemistry
Subjects
Accidents
adsorption
air
Chemistry
copper
corrosion
Corrosion potential
Corrosion resistance
durability
energy
foams
Hydrophobic surfaces
Hydrophobicity
Metal foams
Miscibility
Oil spills
oils
Porous materials
porous media
Seawater
Separation
solvents
Surface energy
Wastewater treatment
Zinc oxide
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Summary:In this paper, we first fabricate a 3D porous FZCF (FAS-modified ZnO-grown copper foam) with robust superhydrophobicity in air and superoleophilicity under water and the repeatable superwettability, and then mainly explore and analyze its corrosion resistance. The superhydrophobic-superoleophilic FZCF as an immiscible oil/organic solvent separation material shows high adsorption capacity and separation efficiency due to its heterogeneous micro-nano structures and low surface energy. It has excellent corrosion resistance under various pH conditions, and can serve as a corrosion protective barrier that prevents metal from contacting corrosive seawater in marine applications. Adsorbed oils also make superoleophilic FZCF keep its durability and stability after suffering attack in strong acid and alkali environments for a long time. Superwetting porous FZCF material that possesses outstanding excellent corrosion resistance demonstrates potential applications in many industrial fields such as oily wastewater treatment and marine oil spill accidents. Superwetting porous FZCF as immiscible oil/organic solvents separation material that possesses excellent corrosion resistance can be widely applied in many industrial fields such as oily wastewater treatment and marine oil spill accidents.
Bibliography:10.1039/c9ra01632e
Electronic supplementary information (ESI) available. See DOI
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ISSN:2046-2069
2046-2069
DOI:10.1039/c9ra01632e