Opposite superwetting magnetic stainless-steel mesh for multiple types of oil/water separation

IF 2.2 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Express Pub Date : 2019-09-20 DOI:10.1088/2053-1591/ab42ef

Kangquan Yang, Xinjuan Zeng, Shouping Xu, P. Pi, X. Wen

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引用次数: 5

Abstract

Oil spill accidents and discharge of oily wastewater from human daily life occur frequently. More and more attention has been paid to wettable interface materials for oil/water separation. However, to date, there has been little reports about on-demand and continuous oil/water separation. Therefore, we proposed a simple and environmentally friendly method to construct rough surface structure by spraying magnetic Fe3O4 nanoparticles, and modified the surface by attaching dopamine and grafting n-dodecyl mercaptan on dopamine to prepare SSM with opposite wetting properties. The obtained meshes exhibit excellent resistance to mechanical and chemical damages, and can be long-term storage. More importantly, the as-prepared superhydrophilic mesh and superhydrophobic mesh can be used to continuously separate oil-water mixtures with high efficiency. At the same time, they could be controlled by magnetic force, and have the application prospect in sewage treatment, oil-water separation and deep-sea oil leakage treatment.

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相对超湿磁性不锈钢网，用于多种类型的油/水分离

人们日常生活中发生的溢油事故和含油废水的排放时有发生。用于油水分离的可湿界面材料越来越受到人们的关注。然而，到目前为止，关于按需和连续的油水分离的报道很少。因此，我们提出了一种简单环保的方法，通过喷涂磁性Fe3O4纳米颗粒来构建粗糙的表面结构，并通过附着多巴胺和在多巴胺上接枝n-十二烷基硫醇对表面进行修饰，制备出具有相反润湿性能的SSM。所得的网具有优异的抗机械和化学损伤性，可以长期储存。更重要的是，制备的超亲疏水网可以高效地连续分离油水混合物。同时，它们可以通过磁力控制，在污水处理、油水分离和深海漏油处理中具有应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Research Express MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

4.50

自引率

4.30%

发文量

640

审稿时长

12 weeks

期刊介绍： A broad, rapid peer-review journal publishing new experimental and theoretical research on the design, fabrication, properties and applications of all classes of materials.