Oil-water separation technology is crucial for the efficiency of industrial processes. However, most oil-water separation membranes are susceptible to oil contamination after the separation process, which can lead to reduced separation efficiency and capacity. In this study, a self-cleaning oil-water separation screen was developed and observed to maintain a separation efficiency of more than 95% and a stable flux of more than 5000 L-m-2h-1 after multiple separation cycles. A ceramic coating was prepared on the surface of the titanium screen by micro-arc oxidation (MAO) and the MAO-Ti screen was subsequently covered with polyvinyl alcohol.The PVA@MAO titanium screen was capable of separating oil-water mixtures in corrosive environments with separation efficiencies in excess of 95%, and exhibited submerged super-oleophobicity in excess of 150° even when immersed in strong acids and bases. In addition, the mesh retains its separation capacity after wire ball abrasion and bending tests. Its excellent corrosion resistance and mechanical stability suggest that it will have a significant impact in the field of oil-water separation.Bo Cheng a, Bowen Xue a, Yongfeng Chen c, Qiqi Wu a, Shangdong Zhao a, Fang Guo b, * and Hailin Lu a, c, *.A stable and A stable and efficient micro-arc oxidation oil-water separation mesh[J]. Materials Today Communications. (Impact Factor: 3.7, CAS III).

(a) water contact angle; (b-h) oil contact angle; (i) dynamic oil contact angle