Reckless discharge of industrial wastewater and domestic sewage as well as frequent leakage of crude oil have caused serious environmental problems and posed severe threat to human survival. Various nature inspired superhy-drophobic surfaces have been successfully applied in oily water remediation. However, further improvements are still urgently needed for practical application in terms of facile synthesis process and long-term durability towards harsh environment. Herein, we propose a simple one-step dodecyl mercaptan functionalization method to fabricate Super-hydrophobic-Superoleophilic Copper Mesh (SSCM). The prepared SSCM possesses excellent water repellence and oil affinity, enabling it to successfully separate various oil-water mixtures with high separation efficiency (e.g., > 99% for hexadecane-water mixture). The SSCM retains high separating ability when hot water and strong corrosive aqueous solutions are used to simulate oil-water mixtures, indicating remarkable chemical durability of the dodecyl mercaptan functionalized copper mesh. Additionally, the efficiency can be well maintained during 50 cycles of separation, and the water repellence is even stable after storage in air for 120 days, demonstrating the reusability and long-term stability of the SSCM. Furthermore, the functionalized mesh also shows good mechanical robustness towards abrasion by sandpaper, and oil-water separation efficiency of > 96% can be obtained after 10 cycles of abrasion. The reported one-step dodecyl mercaptan functionalization could be a simple method for increasing the water repellence of copper mesh, and thereby be a great candidate for treating large-scale oily wastewater in harsh environments.

工业废水和生活污水的肆意排放，原油的频繁泄漏，造成了严重的环境问题，严重威胁着人类的生存。各种受自然启发的超疏水表面已成功应用于油水修复。然而，在简便的合成过程和对恶劣环境的长期耐久性方面，仍迫切需要进一步改进以用于实际应用。在此，我们提出了一种简单的一步十二烷基硫醇功能化方法来制造超疏水-超亲油铜网（SSCM）。所制备的SSCM具有优异的拒水性和亲油性，使其能够以高分离效率成功分离各种油水混合物（例如，十六烷水混合物> 99％）。当使用热水和强腐蚀性水溶液模拟油水混合物时，SSCM 保持高分离能力，表明十二烷基硫醇功能化铜网具有显着的化学耐久性。此外，在50次分离循环中仍能很好地保持效率，在空气中存放120天后拒水性甚至稳定，证明了SSCM的可重复使用性和长期稳定性。此外，功能化网格还表现出良好的抗砂纸磨损机械强度，经过10次磨损循环后可获得> 96%的油水分离效率。报道的一步十二烷基硫醇官能化可能是一种提高铜网防水性的简单方法，