Robust and flexible superhydrophobic/superoleophilic melamine sponges for oil-water separation
Robust and flexible superhydrophobic/superoleophilic melamine sponges for oil-water separation
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DOI：
10.1016/j.colsurfa.2019.05.081
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发表时间：
2019-09-20
影响因子：
5.2
通讯作者：
Aygul, Ebru
中科院分区：
文献类型：
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作者：
Demirel, Gokcen Birlik;Aygul, Ebru
在这项研究中，我们已经证明了一种简便和成本效益的方法来制造超疏水/超亲油三聚氰胺海绵油/水分离。通过GPTS/APTES修饰、SiO2纳米粒子结合和OTS修饰三步工艺制备了超疏水/超亲油海绵（S-MS）。通过XPS和SEM表征证实了三聚氰胺海绵的改性。SMSs对各种油和有机溶剂表现出优异的吸附能力。更重要的是，S-MS表现出优异的分离效率，即使在25个循环后也大于97%。此外，SMS在恶劣的环境条件下表现出优异的机械和化学耐久性，例如不同的化学品，不同的温度，胶带测试和紫外线暴露。此外，S-MS能够保持对强酸和强碱液滴的排斥性。这些优异的机械性能和对油的选择性相结合，使S-MS成为一系列工业应用的强有力候选者。
In this study, we have demonstrated a facile and cost-eff ;ective method to fabricate superhydrophobic/superoleophilic melamine sponges for oil/water separation. The superhydrophobic/superoleophilic sponges (S-MSs) were fabricated by using a three-step process including GPTS/APTES modification, SiO2 NPs binding, and OTS modification. The modifications of melamine sponges were confirmed by XPS and SEM characterization. The SMSs showed excellent sorption capacities for various oils and organic solvents. More importantly, the S-MSs exhibited an excellent separation efficiency which was greater than 97% after even 25 cycles. In addition, the SMSs exhibited excellent mechanical and chemical durability against harsh environmental conditions such as different chemicals, different temperatures, tape-test, and UV exposure. Moreover, the S-MSs are able to maintain the repellency against strong acid and alkali droplets. The combination of these excellent mechanical properties and the selectivity against oils have made the S-MSs strong candidate for a range of industrial applications.