3D flexible superhydrophobic polyphosphazene coated melamine sponge for oil–water separation

A compressible porous superhydrophobic material constructed by a multi-template high internal phase emulsion method for oil–water separation

“…The results suggest that RGA/HPMCs have great potential as a highly efficient and reusable adsorbent for the remediation of crude oil spills. Ouyang 17 et al have reported on the successful modification of sponge surfaces using poly(cyclotriphosphazene nitrile- co -bisphenol AF) (PZAF), resulting in a modified sponge (Sponge@PZAF) with a high water contact angle (WCA) of 153° and a high absorption capacity of 71.04 to 135.19 g g −1 for various greases and organic solvents within 30 s. The fine three-dimensional mesh structure of the sponge aids in the efficient and rapid adsorption of oil and grease, facilitating full saturation of the chamber. After 10 cycles of oil absorption–desorption recovery, Sponge@PZAF exhibited an absorption capacity as high as 69.76–132.44 g g −1 , indicating excellent recoverability.…”