The superhydrophobic fiber-based membranes with features of high separation efficiency and low energy consumption for oil-water separation remains a formidable challenge. In this paper, a robust and durable superhydrophobic cotton-derived carbon fabric (CDCF) with wodyetia bifurcate-like structure is fabricated via in situ cobalt-nickel basic carbonate (CNC) deposition and 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (POTS) coating. The combined action of rough surface structure and low surface energy makes CDCF/CNC/POTS with superhydrophobicity/superoleophilicity, anti-wetting, and self-cleaning performance. Intriguingly, the CDCF/CNC/POTS can keep its superhydrophobicity under of the water droplet impact pressure of 781 Pa. In addition to its robust dynamic superhydrophobicity, CDCF/CNC/POTS can also maintain its non-wetting property under harsh environmental conditions such as mechanical abrasion treatment, acidic, alkaline and salt solutions, and ultraviolet radiation. Importantly, the CDCF/CNC/POTS can separate various oil-water mixtures and emulsions under gravity with ultrahigh oil-water mixtures permeate flux (∼19126 L/m²h), high surfactant-stabilized emulsion permeate flux (∼821 L/m²h), and high separation efficiency (> 98.60%). Moreover, remarkable recyclability endow the CDCF/CNC/POTS with promising application in treating oily wastewater. This work may benefit the low-cost mass production of cotton-based carbon fabrics for developing eco-friendly high-efficiency separators.

具有分离效率高、能耗低的超疏水纤维基膜用于油水分离仍然是一项艰巨的挑战。在本文中，通过原位钴镍碱式碳酸盐 (CNC) 沉积和 1H, 1H, 2H, 2H-全氟辛基三乙氧基硅烷 (POTS) 制备了一种坚固耐用的超疏水棉衍生碳织物 (CDCF)，具有类似木桐分叉的结构。涂层。粗糙的表面结构和低表面能的共同作用使CDCF/CNC/POTS具有超疏水/超亲油、抗润湿、自清洁等性能。有趣的是，CDCF/CNC/POTS 在 781 的水滴冲击压力下仍能保持其超疏水性 Pa. CDCF/CNC/POTS除了具有强大的动态超疏水性外，还可以在机械磨损处理、酸性、碱性和盐溶液以及紫外线辐射等恶劣环境条件下保持其不润湿性能。重要的是，CDCF/CNC/POTS 可以在重力作用下分离各种油水混合物和乳液，具有超高的油水混合物渗透通量（~19126  L/m ² h），高表面活性剂稳定的乳液渗透通量（~821  L/m ²h)，分离效率高（>98.60%）。此外，显着的可回收性使 CDCF/CNC/POTS 在处理含油废水方面具有广阔的应用前景。这项工作可能有利于棉基碳纤维织物的低成本大规模生产，以开发环保高效隔膜。