Cover Image, Volume 57, Issue 8

In their work reported on page 421, Lili Li, Guohui Zhang, Panpan Wang, Xiaoxiao Zhang, and Chunhui Xiang used polycaprolactone (PCL)/methylsilicone oil (MSO) nanofiber membranes as a substrate. Electrosprayed PCL microspheres were layered on the surface of the PCL/MSO substrate to form hierarchical structures, which imitated lotus‐leaf‐like papillae structures. On this basis, the PCL/MSO‐PCL MS hierarchical membrane possessed a superhydrophobic surface with 150 ± 0.6° of water contact angle. The maximum adsorption capacity of the PCL/MSO‐PCL MS membrane for n‐hexane was 32.53 g g −1 , which was higher than reported adsorbents. The alternate electrospinning/electrospray techniques in this work suggested the potential applications of environmentally friendly biopolymers in the field of separation membranes. (DOI: 10.1002/polb.24795 )