目的 对泡沫铜进行超疏水改性，用于油水混合物的分离。方法 以泡沫铜为基底，通过沉积法构筑花簇状 ZnO 晶体微纳米尺度的粗糙结构表面，并用十八烷基三乙氧基硅烷进行修饰，制备具有超疏水性能的泡沫铜。利用扫描电子显微镜、X 射线衍射仪、接触角测定仪表征超疏水泡沫铜的表面形貌、化学组成以及浸润性能，同时研究了其在油水分离中的应用效果。结果 所制备的泡沫铜具有超疏水表面，接触角为 150，对不同油水混合物的分离效率达到 95%以上，且具有良好的耐机械摩擦性。通过调节油水混合物酸碱性，超疏水泡沫铜对酸性和碱性油水混合物分离效率略有降低，经过 30 次连续分离，分离效率无明显降低， 接触角仍保持在 130以上，具有良好的耐久性。结论 通过原位沉积法在泡沫铜表面制备出 ZnO 晶体，并利用低表面能硅烷进行修饰，所得超疏水泡沫铜能够有效地分离不同种类的油水混合物，经历循环分离，效率无明显降低，对于油水混合物的大规模分离具有潜在的应用价值。

The work aims to prepare a superhydrophobic copper foam for oil/water separation. Nanoscale rough structure surfaces were prepared based upon in-situ growth of ZnO crystals on copper foam surfaces in deposition method. Then a superhydrophobic copper foam was fabricated by modifying the surface with triethoxyoctadecylsilane. Surface morphology, chemical composition and wetting behavior of the copper foam were characterized by SEM, XRD and contact angle tester. The fabricated copper foam had superhydrophobic surface with water contact angle of about 150?, and separation efficiency on different oil-water mixtures was over 95%. Furthermore, the superhydrophobic copper foam showed excellent mechanical abrasion resistance. Separation efficiency of the superhydrophobic copper foam on acidic or alkaline oil-water mixtures was slightly decreased by adjusting alkalinity or acidity of oil-water mixtures. After continuous separation for 30 cycles, separation efficiency was not significantly decreased, and water contact angle was still over 130?, and good durability was acquired. ZnO crystals can be prepared on the surface of copper foam in the method of in-situ deposition and modified by low surface energy silane. The fabricated superhydrophobic copper foam can separate various oil/water mixtures effectively, and separation efficiency slightly after cyclic seperation. The modified copper foam is of potential application value to large-scale separation of oil/water mixtures.