Transparent Superhydrophilic Coating with Robust and Persistent Anti-Oil-Fouling Properties for Efficient Long-Term Oil/Water Emulsion Separation

被引：0
作者：
Sun, Kai [1 ,2 ]
Hong, Xin [1 ]
Yu, Tianlu [3 ]
Wang, Zhecun [4 ]
机构：
[1] Liaoning Tech Univ, Sch Mech Engn, Fuxin 123000, Peoples R China
[2] Liaoning Tech Univ, Coll Innovat & Practice, Fuxin 123000, Peoples R China
[3] Liaoning Tech Univ, Coll Civil Engn, Fuxin 123000, Peoples R China
[4] Liaoning Tech Univ, Coll Mat Sci & Engn, Fuxin 123000, Peoples R China
来源：
LANGMUIR | 2025年 / 41卷 / 07期
基金：
中国国家自然科学基金;
关键词：
HYDROGEL-COATED MESH; WATER; MEMBRANES; SURFACE;
D O I：
10.1021/acs.langmuir.4c05307
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Porous membranes with superhydrophilicity and underwater superoleophobicity have attracted considerable attention for efficient oil/water emulsion separation. However, such membranes fail to remediate severe oil contamination in long-term applications and exhibit a serious water flux decline. Herein, a universal combination strategy integrating the high coverage of a mussel-inspired sticky interlayer and a double rigid cellulose nanofiber-amorphous calcium carbonate (CNF-ACC) composite outer layer is proposed to prepare a superhydrophilic coating surface with superior anti-oil-fouling properties on diverse substrates. The introduction of the mussel-inspired interlayer not only provides a stable and complete coverage interface but also offers an anchor to fix the outstanding hydration of the outer CNF-ACC composite layer. The high-coverage and double rigid superior hydration CNF-ACC layer provides excellent anti-oil-fouling characteristics, irrespective of the type of oil, under various conditions, such as water-prewetted or oil-fouled environments. Owing to its superior anti-oil-fouling property, the coating-modified membrane shows efficient and long-term separation of diverse oil/water emulsions without significant flux decline and with a flux recovery ratio of nearly 100%. In addition, this coating exhibits antifogging and high transparency, which may show promising applications in diverse optical devices.
引用
收藏
页码：4906 / 4917
页数：12
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