One‐Pot Route for Fe@Poly(styrene‐co‐divinylbenzene) Foam with Robust Physical/Chemical Stability and Remote Magnetic Driven Capacity for Oil Removal,Macromolecular Materials and Engineering

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One‐Pot Route for Fe@Poly(styrene‐co‐divinylbenzene) Foam with Robust Physical/Chemical Stability and Remote Magnetic Driven Capacity for Oil Removal
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-07-19 , DOI: 10.1002/mame.202000160
Rui Zhang ₁ , Yuanpeng Wu _{1,

2,

3} , Haiyan Zhang ₁ , Fengyu Guo ₁ , Zhenyu Li _{1,

2,

3}

Affiliation

Magnetic and superhydrophobic materials with robust physical/chemical stability for controllable and remote magnetic driven capacity for oil removal under harsh environments are meaningful for oil–water separation but still a challenge. Herein, an alternative strategy to address this challenge is demonstrated by decorating poly(styrene‐co‐divinylbenzene) (PSDVB) on Fe foam via one‐pot solvothermal method. Different from previous magnetic and superhydrophobic materials, Fe foam is chosen to replace Fe₃O₄ nanomaterials. Thus, complicated preparation procedures and the high cost for Fe₃O₄ nanomaterials can be avoided. Additionally, PSDVB coating provides the whole foam with robust physical/chemical stabilities: i) the surface wettability can be maintained after 50 abrasion cycles or exposed in humid air (relative humidity: 90%) for 14 days, and ii) the surface wettability does not change under different pH solutions (3 < pH < 12) or highly salty solution (NaCl 10 wt%) for 6 h. Besides, outstanding separation efficiency (>99.9%), high durability (>70 times), and excellent oil flux (16 963–75 156 L m⁻² h⁻¹) can be realized under gravity. Most importantly, the foam continuously removes oil from confine place (on water surface or under water) under magnetic driven force.

中文翻译：

具有可靠的物理/化学稳定性和远程磁驱动能力的Fe @ Poly（苯乙烯-co-二乙烯基苯）泡沫的一锅法

磁性和超疏水材料具有强大的物理/化学稳定性，在恶劣环境下具有可控的远程驱油能力，对于油水分离很有意义，但仍然是一个挑战。本文中，通过单锅溶剂热法在Fe泡沫上装饰聚（苯乙烯-共-二乙烯基苯）（PSDVB）展示了解决该挑战的另一种策略。与以前的磁性和超疏水材料不同，选择了Fe泡沫代替Fe ₃ O ₄纳米材料。因此，Fe ₃ O _4的制备过程复杂且成本高。可以避免使用纳米材料。此外，PSDVB涂层为整个泡沫提供了强大的物理/化学稳定性：i）在经过50次磨蚀循环后，或在潮湿空气（相对湿度：90％）中暴露14天后，可以保持表面润湿性；并且ii）表面润湿性在不同的pH溶液（3 <pH <12）或高盐溶液（NaCl 10 wt％）下放置6 h不变。此外，在重力作用下可以实现出色的分离效率（> 99.9％），高耐久性（> 70倍）和出色的油通量（16 963–75 156 L m ^-2 h ^-1）。最重要的是，在磁力的驱动下，泡沫不断地从密闭的地方（在水表面或水下）去除油。

更新日期：2020-09-14

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