Rong Wanting, Zhang Haifeng, Tuo Yanjing, Chen Weiping, Liu Xiaowei
MEMS Center, Harbin Institute of Technology Harbin 150001 China
State Key Laboratory of Urban Water Resource & Environment, Harbin Institute of Technology Harbin 150001 China.
RSC Adv. 2019 Apr 25;9(23):12854-12863. doi: 10.1039/c9ra01632e.
In this paper, we first fabricate a 3D porous FZCF (FAS-modified ZnO-grown copper foam) with robust superhydrophobicity in air and superoleophilicity under water and the repeatable superwettability, and then mainly explore and analyze its corrosion resistance. The superhydrophobic-superoleophilic FZCF as an immiscible oil/organic solvent separation material shows high adsorption capacity and separation efficiency due to its heterogeneous micro-nano structures and low surface energy. It has excellent corrosion resistance under various pH conditions, and can serve as a corrosion protective barrier that prevents metal from contacting corrosive seawater in marine applications. Adsorbed oils also make superoleophilic FZCF keep its durability and stability after suffering attack in strong acid and alkali environments for a long time. Superwetting porous FZCF material that possesses outstanding excellent corrosion resistance demonstrates potential applications in many industrial fields such as oily wastewater treatment and marine oil spill accidents.
在本文中，我们首先制备了一种三维多孔FZCF（FAS改性的生长有氧化锌的泡沫铜），它在空气中具有坚固的超疏水性，在水下具有超亲油性以及可重复的超润湿性，然后主要探索和分析其耐腐蚀性。超疏水-超亲油的FZCF作为一种不混溶的油/有机溶剂分离材料，由于其异质的微纳结构和低表面能，显示出高吸附容量和分离效率。它在各种pH条件下都具有优异的耐腐蚀性，并且在海洋应用中可以作为一种防止金属与腐蚀性海水接触的腐蚀防护屏障。吸附的油还使超亲油的FZCF在长时间遭受强酸和强碱环境侵蚀后仍保持其耐久性和稳定性。具有出色耐腐蚀性的超润湿性多孔FZCF材料在许多工业领域，如含油污水处理和海洋溢油事故处理中展示出了潜在的应用价值。
