Superhydrophilic and underwater superoleophobic membranes with high permeability, high selectivity, and excellent antifouling performance have attracted considerable attention for oil/water separation. However, complex processing, high cost, and low efficiency limit their widespread application. There is an urgent need to develop novel, low-cost, and eco-friendly membranes. Therefore, in this study, a novel geopolymer-based membrane was prepared by a facile “dipping & curing” process, and silicomanganese slag solid waste was utilized as an original material. The attenuated total reflection Fourier transform infrared and contact angle results showed that the geopolymer-based membrane has superhydrophilic and underwater superoleophobic characteristics. All membrane samples showed high separation efficiencies (≥98%) for different oil/water mixtures. The 0.8SSGM sample had the highest water flux of 1114.70 kg/(m²·h) and cycle stability during 20 times reuse. This study provides a new understanding of the recycling of silicomanganese slag solid waste, an application route for geopolymer materials, and low-cost oil/water separation membranes.

具有高渗透性、高选择性和优异防污性能的超亲水和水下超疏油膜在油水分离领域引起了广泛关注。但加工复杂、成本高、效率低等问题限制了其广泛应用。迫切需要开发新型、低成本和环保的膜。因此，在本研究中，以硅锰渣固体废物为原料，通过简便的“浸渍固化”工艺制备了一种新型地质聚合物基膜。衰减全反射傅里叶变换红外和接触角结果表明，基于地质聚合物的膜具有超亲水和水下超疏油特性。所有膜样品均显示出高分离效率（≥98 %) 用于不同的油/水混合物。0.8SSGM样品在20次重复使用期间具有最高的水通量为1114.70  kg/(m ² ·h)和循环稳定性。该研究为硅锰渣固体废物的回收利用、地质聚合物材料的应用路线和低成本的油水分离膜提供了新的认识。