A self-roughened and biodegradable superhydrophobic coating with UV shielding, solar-induced self-healing and versatile oil–water separation ability

Abstract

Self-roughened and biodegradable superhydrophobic fabrics with solar-induced self-healing property are constructed for versatile and efficient oil–water separation.

Facile optimization of hierarchical topography and chemistry on magnetically active graphene oxide nanosheets

“…In the past, bio-inspired superhydrophobic sponges and membranes were successfully used for selective absorption and ltration based 'bulk'-oil separation from oil/water mixtures. [36][37][38][39][40] However, the superhydrophobicity embedded on these macro-scale objects (sponge and mesh) is fundamentally inappropriate for remediating tiny oil-in-water emulsion droplets as the bulk aqueous phase prevents the access of submicron oil droplets to the selective superoleophilic interfaces. In addition to this, the coating of various chemicals-including asphaltenes, resins, and naphthenic acids around the crude oil droplets pose a severe challenge to oil/water separation; unlike other emulsions that are made out of rened oils.…”

One‐Pot Route for Fe@Poly(styrene‐co‐divinylbenzene) Foam with Robust Physical/Chemical Stability and Remote Magnetic Driven Capacity for Oil Removal

“…[18][19][20][21][22][23] Hitherto, diverse methods have been developed to design superhydrophobic materials, according to models of wetting, [24][25][26][27] such as layer-by-layer method, [28,29] dip-coating route, [30][31][32] templates route, [33] spraycoating method, [34] and so on. [35][36][37] However, most existing superhydrophobic/superoleophilic materials can only remove oil from the water surface, preventing their applications in separating the heavy oil under the water.…”

Multi Self-Healable UV Shielding Polyurethane/CeO2 Protective Coating: The Effect of Low-Molecular-Weight Polyols

“…There are other materials also used in UV shielding. Especially, different types of dye, carbon, and polydopamine are also used as UV-shielding materials [ 20 , 21 , 22 , 23 , 24 , 25 , 26 ]. However, the CeO 2 , similar to other metal oxides, is an attractive choice as it is significantly less toxic, cheap, and possesses filler properties [ 4 , 7 ].…”

“…UV degradation resistance and the self-healing of polymers has also been separately worked on [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. Zhang et al prepared polyethylenimine-based elastomers with self-healing property [ 27 ].…”

“…Wang et al prepared a gel that had the capacity to 100% self-heal [ 29 ]. Dong et al prepared a biodegradable superhydrophobic polydopamine-based self-healing and UV-shielding coating [ 26 ]. Kim et al prepared supramolecular PU, which showed 96% self-healing efficiency based on a tensile test [ 12 ].…”