Facile construction of superhydrophobic/superoleophilic melamine sponges with durability and antifouling for selective oil absorption and effective oil/water separation

Superhydrophobic Bud Protrusion-Polypropylene Fiber Membrane with Ultrahigh Flux for Oil–Water Separation

“…Currently, the popular separation mechanism of oil–water separation , can be explained using Figure . The intrusion pressure (Δ P ) can provide a theoretical basis for the composite membrane separation process, which is calculated by eq : Δ P = − 2 γ ⁡ cos ⁡ θ r where γ is the interfacial tension, r is the liquid surface bending radius, and θ is the advancing contact angle. For superhydrophobic/superoleophilic membranes, the intrusion pressure of oil droplets is less than 0 in the oil–water separation process due to membrane’s superoleophilicity (θ < 90°), implying that the oil droplets can spontaneously immerse and spread to the membrane surface and permeate, as shown in Figure a.…”

“…Currently, the popular separation mechanism of oil−water separation 49,50 can be explained using Figure 7. The intrusion pressure (ΔP) can provide a theoretical basis for the composite membrane separation process, 51 which is calculated by eq 3:…”

Multifunctional MnO2 nanorods-modified wood sponge for water remediation: Applications for heavy metal sorption and oil/water separation

“…Furthermore, the extensive use of non-renewable energies and the presence of pollutants in water resources, including oils and organic solvents have hardened these challenges (Tee et al 2023;Voumik et al 2023;Li et al 2024a). Water bodies polluted with oil have a great possibility of endangering marines' lives, and damaging human's food chain, consequently (Jing et al 2024;Li et al 2024b). Heavy metal ions are resistant to degradation and highly-applicable in industries (Fang et al 2022; Wang et al 2023a;Du et al 2024).…”