Facile Fabrication of Superhydrophobic Copper- Foam and Electrospinning Polystyrene Fiber for Combinational Oil–Water Separation oleh Yu-Ping Zhang, Jing-Hua Yang, Ling-Li Li, Cheng-Xing Cui, Ying Li, Shan-Qin Liu, Xiao-Mao Zhou, Ling-Bo Qu