LAUSR

Marimo-like hierarchical micronanostructure superhydrophobic β-FeOOH (MHMSFe) firmly anchored onto the skeleton of sponge/cotton fabric (MHMSFe@sponge/MHMSFe@cotton fabric) as superhydrophobic materials were successfully designed and fabricated via a one-step surfactant and urea-assisted hydrothermal method. By the combination of micronanostructure design, a three-dimensional (3D) hierarchical architecture was built from spherical assembly of high integration and density superhydrophobic β-FeOOH nanorods, which tended to stack up to each other in an orderly manner to decrease their surface energy. The obtained superhydrophobic materials with a static contact angle (CA) of 168° could not only undergo rapid oil/water separation but also display excellent absorption capacity up to 23 times of its own weight and great separation efficiency up to 99.6%. Besides, the superhydrophobic materials performed satisfactory reusability. This study not only provides a new strategy to design superhydrophobic materials bu...