ABSTRACT

In this work, amorphous Fe-Ni-B magnetic nanoparticles were synthesized, and oleic acid (OA) was used to improve the hydrophobic and oleophilic performance. The core-cell Fe-Ni-B@OA particles were used to prepare magnetic nanofluids to effectively remove oil slicks. The results of X-ray and electron diffractions show that the samples were spherical amorphous particles with 10~13 nm diameters. The Fe-Ni-B@OA nanoparticles were found to have good coating effects of OA with a saturation magnetization of 59 emu/g. The oil removal ability of the magnetic nanofluid performed well without secondary pollution and more than 90.6% of the oil slicks could be recovered after three repeated experiments. The prepared Fe-Ni-B@OA magnetic nanofluid demonstrates broad potential in water surface oil slick treatment.

摘要

在这项工作中，合成了无定形的Fe-Ni-B磁性纳米粒子，并使用油酸（OA）改善了疏水性和亲油性。核心单元Fe-Ni-B @ OA颗粒用于制备磁性纳米流体，以有效去除浮油。X射线衍射和电子衍射结果表明，样品为直径10〜13 nm的球形无定形颗粒。发现Fe-Ni-B @ OA纳米粒子具有良好的OA涂层效果，饱和磁化强度为59 emu / g。磁性纳米流体的除油性能良好，没有二次污染，经过三个重复的实验，可以回收超过90.6％的浮油。制备的Fe-Ni-B @ OA磁性纳米流体在水表面浮油处理中显示出广阔的潜力。