期刊
NANOSCALE
卷 9, 期 37, 页码 14229-14235出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nr04582d
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资金
- National Natural Science Foundation of China (NSFC) [91323301, 51505505]
- China Postdoctoral Science Foundation [2015M572264]
- State Key Laboratory of High Performance Complex Manufacturing [ZZYJKT2015-08]
Marine oil spills have induced severe water pollution and threatened sea ecosystems, which also result in a loss of energy resources. To deal with this problem, much work has been done for using superhydrophobic or superhydrophilic mesh for oil-water separation. Nevertheless, there are still great challenges in the rapid fabrication of extremely durable mesh with superwetting properties, particularly considering the highly efficient oil-water separation. In this study, we present a simple, efficient method to fabricate superhydrophilic and underwater superoleophobic stainless steel mesh surfaces with one-step femto-second laser induced periodic nanoripple structures. The as-prepared mesh shows high separation efficiency, which is higher than 99% for various oil-water mixtures. More importantly, the wettability and the separation efficiency of the fabricated mesh show no obvious change after the abrasion tests and corrosion tests, indicating that the as-prepared samples possess robust stability. This study provides an efficient route for constructing durable and highly efficient separation mesh, which can be applied in the cleanup of large-scale oil spills in the near future.
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