A versatile coating approach to fabricate superwetting membranes for separation of water-in-oil emulsions

A versatile coating approach to fabricate superwetting membranes for separation of water-in-oil emulsions
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一种用于制造用于分离油包水乳液的超润湿膜的多功能涂层方法

DOI:
10.1007/s10118-016-1828-y
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发表时间:
2016-08
影响因子:
4.3
通讯作者:
Xu J
Xu J
中科院分区:
化学2区
文献类型:
--
作者:
Hou Yi;Zhao Yi-ping;Chen Li;Hou Yi;Duan Chun-ting;Zhao Ning;Zhang Huan;Xu Jian;Dai Hong-jun;Zhao N;Xu J

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由于溢油事故的频繁发生,油水混合物的分离,特别是乳化油/水混合物的分离非常重要。利用超润湿多孔膜分离无表面活性剂或表面活性剂稳定的乳状液已成为一种很有前途的方法。在此,我们报告了一种简便和通用的策略,通过用聚[(3,3,3-三氟丙基)甲基硅氧烷](PTFPMS)纳米颗粒涂覆膜的骨架来制备疏水/油下超疏水膜。所得膜可用于分离各种油包水型乳状液,具有较高的通量和分离效率。此外,由于PTFPMS对大多数有机溶剂或油具有出色的耐受性,改性膜显示出优异的可重复使用性和在实际应用中至关重要的可降解性。许多市售的膜可以通过这种简单的方法进行改性。
Separation of oil/water mixtures, especially for the emulsified oil/water mixtures, is important because of the frequent occurrence of oil spill accidents. Utilizing superwetting porous membrane has become a promising approach to separate either surfactant-free or surfactant-stabilized emulsions. Herein we report a facile and versatile strategy for preparing hydrophobic/under-oil superhydrophobic membranes by coating the skeletons of the membranes with the poly[(3,3,3-trifluoropropyl)methylsiloxane] (PTFPMS) nanoparticles. The obtained membranes could be used to separate various waterin- oil emulsions with high flux and separation efficiency. In addition, owning to the outstanding resistance of PTFPMS to the most organic solvents or oils, the modified membranes exhibited the excellent reusability and the antifouling properties that were critical in the practical applications. Many commercially available membranes can be modified by such a simple method.
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