Selective Superwettability: Flexible, Durable, and Unconditioned Superoleophobic/Superhydrophilic Surfaces for Controllable Transport and Oil–Water Separation (Adv. Funct. Mater. 20/2018)

Abstract

In article number https://doi.org/10.1002/adfm.201706867, Yunlu Pan and co‐workers propose an efficient method to fabricate coatings which show both of superoleophobicity and superhydrophilicity. Applying the coatings on different kinds of solid substrates achieves good performance in separating oil–water mixtures, stabilized oil‐in‐water emulsions, and controllable oil transportation. The mechanical durability of the coating is substantially increased by applying the proposed ferroconcrete‐like structure.

Excellent oil/water separation performance of poly(styrene‐alt‐maleic anhydride)/fluorocarbon surfactant membrane filter with functionalized multiwalled carbon nanotubes

“…When it contacts the oil/water mixture, water molecules are trapped in the micro/nano structures and form a water–solid interface, preventing the penetration of oil droplets. This water stimulus–response oleophobic/hydrophilic surface further increases the oil/water separation efficiency of the membrane filter (Figure h and Scheme ) …”

Constructing Superhydrophobicity by Self‐Assembly of SiO2@Polydopamine Core‐Shell Nanospheres with Robust Oil‐Water Separation Efficiency and Anti‐Corrosion Performance

“…The robustness has been overall compared with previous literature reports. [ 38–52 ] It can be clearly observed that the loading pressure is normally applied between 0 and 5 kPa, further high pressure leads to a low wear distance. In comparison, our prepared sponge achieved 10 m wear distance under the loading pressure of 49 kPa, ascribing to the coverage of highly adhesive PDA‐based coatings.…”

Superhydrophilic and oleophobic sponges prepared based on Mussel‐Inspired chemistry for efficient oil‐water separation

“…The construction of superhydrophilic/superoleophobic materials needs to increase the polar component while reducing the dispersion component of the material surface [28,31] . However, it is not easy to synthesize a coating that satisfies the oleophobic modification while providing sufficient polar composition.…”