Dual Superlyophobic Copper Foam with Good Durability and Recyclability for High Flux, High Efficiency, and Continuous Oil-Water Separation

ACS Applied Materials & Interfaces
Wenting ZhouQing Jiang

Abstract

Traditional oil-water separation materials have to own ultrahigh or ultralow surface energy. Thus, they can only be wetted by one of the two, oil or water. Our experiment here demonstrates that the wettability in oil-water mixtures can be tuned by oil and water initially. Hierarchical voids are built on commercial copper foams with the help of hydrothermally synthesized titanium dioxide nanorods. The foams can be easily wetted by both oil and water. The water prewetted foams are superhydrophilic and superoleophobic under oil-water mixtures, meanwhile the oil prewetted foams are superoleophilic and superhydrophobic. In this paper, many kinds of water-oil mixtures were separated by two foams, prewetted by corresponding oil or water, respectively, combining a straight tee in a high flux, high efficiency, and continuous mode. This research indicates that oil-water mixtures can be separated more eco-friendly and at lower cost.

References

Mar 10, 2001·Journal of Biomedical Materials Research·L D ZardiackasR Poggie
Sep 7, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Manhui SunYong Chen
Dec 14, 2011·ACS Applied Materials & Interfaces·Guoyong Wang, Tong-Yi Zhang
Jun 12, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Chih-Feng WangChi-Jung Chang
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Jan 14, 2016·ACS Applied Materials & Interfaces·Arie MulyadiYulin Deng
Oct 13, 2016·Advanced Materials·Xuelin TianRobin H A Ras
Feb 22, 2017·ACS Applied Materials & Interfaces·Cailong ZhouJiang Cheng

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Citations

Sep 27, 2018·Physical Chemistry Chemical Physics : PCCP·Jiale YongXun Hou
Apr 1, 2019·Water Research·Henry J TanudjajaJia Wei Chew
Dec 18, 2020·ACS Applied Materials & Interfaces·Binbin DongChangyu Shen
Oct 9, 2018·ACS Applied Materials & Interfaces·Lu TieWeimin Liu

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