Underwater superoleophobic membranes for oil/water separation have made great progress. Nevertheless, there are still some challenges in the simple fabrication of inexpensive and eco-friendly membranes with underwater superoleophobicity. Herein, a simple and effective approach was proposed to fabricate the fabric with superhydrophilic and underwater superoleophobic performance. The developed fabric can be used as a membrane for gravity driven separation of a series of oils from water both in gentle environment and harsh environments (highly acidic, alkaline, and salty solutions), exhibiting high separation efficiency (>95.7%) and good recyclability. More importantly, the treated fabric is capable of separating oil-in-water emulsions driven only by the gravity with high efficiency (>92.8%) and high flux (2184–4588 L m⁻² h⁻¹). This study provides a simple strategy to fabricate underwater superoleophobic fabric for water purification and oily wastewater treatment.

用于油/水分离的水下超疏油膜取得了很大的进展。然而，在具有水下超疏油性的廉价且生态友好的膜的简单制造中仍然存在一些挑战。在此，提出了一种简单有效的方法来制造具有超亲水和水下超疏油性能的织物。所开发的织物可用作膜，用于在温和的环境和恶劣的环境（强酸，强碱和咸溶液）中重力驱动地从水中分离出一系列油，具有很高的分离效率（> 95.7％）和良好的可回收性。 。更重要的是，经过处理的织物能够以高效率（> 92.8％）和高通量（2184–4588 L m ^-2）分离仅由重力驱动的水包油乳液 h ^-1）。这项研究提供了一种简单的策略来制造用于水净化和含油废水处理的水下超疏油织物。