• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Conversion of iron oxide nanosheets to advanced magnetic nanocomposites for oil spill removal
【24h】

Conversion of iron oxide nanosheets to advanced magnetic nanocomposites for oil spill removal

机译：将氧化铁纳米片转化为漏油液中的先进磁性纳米复合材料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study aims at developing magnetic materials through the combination of cobalt and iron oxide at the nanoscale for producing facile and environmentally friendly techniques to remove crude oil from water. A series of cobalt iron oxides with different molar ratios of Co/Fe were prepared and characterized using X-ray diffraction, thermal analyses and electron microscopy. X-ray diffraction results indicated that the prepared iron oxides have a hematite structure with a particle size of 100 nm. By adding cobalt, spinel structures of cobalt iron oxides were observed and their particle size sharply decreased to be 10 nm. TEM images confirmed that the prepared cobalt iron oxide nanocomposites have particle sizes of 5-10 nm. While, 100 nm nanosheets were observed for the prepared iron oxide. The surface texture of the prepared iron oxide nanosheets was also affected by the addition of cobalt and the formation of nanocomposites. Where, a low surface area (8.9 m(2) g(-1)) was observed for the prepared iron oxides. By adding and increasing the percentage of cobalt, the surface area sharply increased to be 133 m(2) g(-1). The magnetization behavior of the prepared nanomaterials was investigated and showed that the ferromagnetic behavior of alpha-Fe2O3 is shifted to superparamagnetic behavior when doping iron oxide with cobalt. Due to the small nanosize, the high surface area and the superparamagnetic behavior, the prepared cobalt iron oxide nanocomposites were very effective in the removal of crude oil from water. It was concluded that the magnetic materials meet the special requirements to be useful in oil spill removal.
机译：本研究旨在通过纳米级的钴和氧化铁的组合来开发磁性材料，用于生产容易和环保技术，以从水中除去原油。制备了一系列具有不同摩尔比的CO / Fe摩尔比的氧化铁氧化物，并使用X射线衍射，热分析和电子显微镜表征。 X射线衍射结果表明，制备的氧化铁具有颗粒尺寸为100nm的赤铁矿结构。通过添加钴，观察钴氧化铁的尖晶石结构，并且它们的粒度急剧下降至10nm。 TEM图像证实制备的钴氧化铁纳米复合材料具有5-10nm的颗粒尺寸。虽然，用于制备氧化铁的100nm纳米片。制备的氧化铁纳米片的表面纹理也受加入钴和纳米复合材料的形成影响。在其中，对于制备的氧化铁，观察到低表面积（8.9m（2 )g（-1））。通过添加和增加钴的百分比，表面积急剧增加至133μg（-1）。研究了制备的纳米材料的磁化行为，并表明α-Fe2O3的铁磁性行为在用钴掺杂氧化铁时移至超顺磁性行为。由于纳米尺寸小，表面积和超顺磁性，所制备的钴氧化铁纳米复合材料非常有效地从水中除去原油。得出结论是，磁性材料满足特殊要求，可用于溢油去除。

著录项

  • 来源
    《RSC Advances》 |2015年第89期|共9页
  • 作者

    Saber O.; Mohamed N. H.; Arafat S. A.;

  • 作者单位

    King Faisal Univ Fac Sci Dept Phys Al Hasa 31982 Saudi Arabia;

    Egyptian Petr Res Inst Cairo Egypt;

    King Faisal Univ Fac Sci Dept Phys Al Hasa 31982 Saudi Arabia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号