Superhydrophilic-underwater　superoleophobic　materials　have　received　extensive　attention　in　recent　years　due　to　their　excellent　performance　in　oil-water　separation.　However,　they　are　still　challenged　by　practical　limitations.　One　of　the　main　issues　is　the　modification　of　traditional　metal-based　surfaces.　These　surfaces　are　typically　modified　through　roughening　and　chemical　treatment,　but　they　still　face　significant　challenges.　Here,　we　report　a　metal　rubber(MR)　filtration　material　with　exceptional　superhydrophilic-underwater　superoleophobic　properties,　fabricated　through　a　synchronous　process　combining　two-dimensional(2D)　iron　oxide　sheets　and　zero-dimensional(0D)　silica　nanospheres.　This　composite　structure　enhances　surface　wettability　by　integrating　the　dimensional　effects　of　2D　and　0D　components.　This　superwettable　material,　termed　P-MRFS,　incorporates　a　composite　structure　that　enhances　surface　wettability　by　integrating　the　size　effects　of　both　2D　and　0D　components.　The　P-MRFS　material　achieved　a　peak　separation　flux　over　2500　L·m⁻²·h⁻¹　and　up　to　99.88%　purity　across　various　oil　in　water　emulsions,　including　hexane,　petroleum　ether,　dimethylbenzene,　dichloroethane,　and　toluene,　with　a　stable　efficiency　of　99.7%　after　30　separation　cycles.　P-MRFS　demonstrated　durability　under　demanding　conditions,　maintaining　over　99.5%　separation　efficiency　after　48　hours　in　acidic,　alkaline,　and　saline　solutions　and　following　400　cm　of　abrasion　under　a　200　g　load.　Importantly,　the　study　employed　computational　fluid　dynamics(CFD)　simulations　to　analyze　the　micro-scale　mechanisms　of　emulsion　separation,　enabling　real-time　observation　of　droplet　dynamics　and　revealing　interactions　within　the　multi-fiber　structure　that　enhance　separation　efficiency.　Overall,　the　P-MRFS　material　showed　outstanding　stability　in　corrosion　and　abrasion　resistance,　sustaining　high　emulsion　separation　performance　even　in　complex　environments.　These　findings　suggest　the　material＇s　high　potential　for　future　applications　in　oil-water　separation,　environmental　protection,　including　crude　oil　recovery,　and　other　industrial　uses,　underscoring　its　significant　practical　utility.　©　2025　Elsevier　B.V.