The sewage treatment technology of oil-water separation based on superwetting materials has been widely employed. However, the stability of substrates was rarely considered in the past few years, which greatly limited the application of superwetting materials in engineering field. As a new robust, three-dimensional porous material, metal rubber (MR) has attracted significant attention for solving this problem. To treat the wastewater containing insoluble heavy/light oil and soluble dyes, herein, MR capable of degrading organic dyes with switchable wettability and high oil-water separation efficiency was prepared. Firstly, the superhydrophilic MR was obtained by anodizing. Then, the wettability of MR surface was reversibly switched between superhydrophilic and superhydrophobic via alternate immersion in stearic acid ethanol solution and tetrahydrofuran (THF) solvent to achieve switchable oil-water separation of MR. The superwetting MR displayed excellent abrasion resistance and retained outstanding oil-water separation performance after 100 times of sandpaper abrasion. Besides, the surface of pure titanium MR was rich in titanium dioxide (TiO₂) after anodic oxidation, which could effectively degrade the organic dyes under ultraviolet light. Therefore, the as-prepared superwetting MR possesses the ability to treat complex wastewater and have applications prospects in controllable oil-water separation and self-cleaning surfaces.

基于超湿材料的油水分离污水处理技术已被广泛采用。但是，近几年很少考虑基材的稳定性，这极大地限制了超湿材料在工程领域的应用。作为一种新型的坚固的三维多孔材料，金属橡胶（MR）在解决此问题方面引起了极大的关注。为了处理包含不溶性重油/轻油和可溶性染料的废水，本文制备了能够以可切换的润湿性和高油水分离效率降解有机染料的MR。首先，通过阳极氧化获得超亲水性MR。然后，通过交替浸入硬脂酸乙醇溶液和四氢呋喃（THF）溶剂，可将MR表面的润湿性可逆地在超亲水性和超疏水性之间切换，从而实现MR的油水分离。经过100倍的砂纸磨损后，超湿MR表现出优异的耐磨性，并保留了出色的油水分离性能。此外，纯钛MR的表面富含二氧化钛（TiO₂）阳极氧化后，可以有效地降解紫外线下的有机染料。因此，所制备的超湿MR具有处理复杂废水的能力，并在可控的油水分离和自清洁表面方面具有应用前景。