3D printed robust superhydrophilic and underwater superoleophobic composite membrane for high efficient oil/water separation

Realizing surface amphiphobicity using 3D printing techniques: A critical move towards manufacturing low-cost reentrant geometries

“…The membrane showed suitable results as an oil-water separation barrier with a high efficiency of 99%. Similar to this, Li et al used printing ink consisting of a mixture of cellulose acetate (CA), poly (viny1 alcohol) (PVA), and silica nano-particles (SiO2) to fabricate a highly superoleophobic membrane for oil-water separation with oil contact angles reaching up to 159° underwater [173]. These methods show the ease with which a complex geometry such as that of a membrane can easily be developed in a single-step printing process without any additional modification.…”

3D Printed Materials in Water Treatment Applications

“…Even after 50 cycles, the optimum printed membrane maintained about 99% of oil/water separation efficiency. [60] On the other hand, an oil skimmer consisting of octadecyltrichlorosilane treated 3D printed mesh cap and a bottom container (Figure 3g) was fabricated. The well water abhorrence of the 3D printed mesh enabled highly effective removal of floating oil through filtration, while the bottom container directly collected the oil, and have shown 97.6% maximum oil/water separation efficiency.…”

Quartz Sand Filter Media with Special Wettability for Continuous and Efficient Oil/Water Separation and Dye Adsorption

“…The superhydrophilic and superoleophobic underwater materials work in the opposite manner. In the premise of water pre-wetting, the water phase can penetrate the surface smoothly whereas the oil phase cannot adhere to the material called dewatering material [29][30][31]. Yu et al [32] prepared a ceramic microfiltration membrane with superhydrophilic and underwater superoleophobic properties.…”