Dual-scaled porous nitrocellulose membranes with underwater superoleophobicity for highly efficient oil/water separation.

Gao, Xuefei; Xu, Li-Ping; Xue, Zhongxin; Feng, Lin; Peng, Jitao; Wen, Yongqiang; Wang, Shutao; Zhang, Xueji · Adv Mater · 2014

basic_science · Level V

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Abstract

Large-area dual-scaled porous nitrocellulose (p-NC) membranes are fabricated by a facile, inexpensive and scalable perforating approach. These p-NC membranes show stable superhydrophilicity in air and underwater superoleophobicity. The p-NC membranes with intrinsic nanopores and array of microscale perforated pores could selectively and efficiently separate water from various oil/water mixtures with high efficiency (>99%) rapidly.