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首页> 外文期刊>RSC Advances >Co3O4/graphene nanocomposite: pre-graphenization synthesis and photocatalytic investigation of various magnetic nanostructures
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Co3O4/graphene nanocomposite: pre-graphenization synthesis and photocatalytic investigation of various magnetic nanostructures

机译：CO3O4 /石墨烯纳米复合材料：翻译前合成和光催化调查各种磁纳米结构

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摘要

For the first time, a novel technique for preparing cobalt(II) acetyl acetonate [Co(acac)(2)] nanostructures has been developed by using the sublimation process. It is found that the sublimation temperature has a main role in creating the special morphology and size of [Co(acac)(2)] and Co3O4 nanostructures. The nano-sized Co3O4 were obtained by thermal decomposition of [Co(acac)(2)] nanostructures at 400 degrees C for 120 min. The produced nanostructures were characterized by powder X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS) analysis, Raman spectroscopy, transmission and scanning electron microscopy (TEM, SEM). Magnetic and optical properties of the final product were measured at room temperature by a vibrating sample magnetometer (VSM) and UV-vis spectroscopy, respectively. The Co3O4 nanostructures were anchored onto the graphene sheets and the Co3O4/graphene (Co3O4/GR) nanocomposite was synthesized through pre-graphenization successfully. To investigate the catalytic properties of Co3O4/G nanocomposites, photooxidation of methyl orange (MO) was performed. The performed photocatalytic test shows that the methyl orange degradation was about 54.9% after 75 min irradiation of UV light.
机译：首次，通过使用升华过程开发了一种用于制备丙酮（II）乙酰乙酸乙酸钴（II）乙酰酯[CO（ACAC）（2）]纳米结构的新技术。结果发现升华温度在产生[CO（ACAC）（2）]和CO3O4纳米结构的特殊形态和尺寸方面具有主要作用。通过在400℃下的[CO（ACAC）（2）]纳米结构在400℃下进行120分钟，得到纳米大小的CO 3 O 4。通过粉末X射线衍射（XRD），能量分散X射线光谱（EDS）分析，拉曼光谱，透射和扫描电子显微镜（TEM，SEM），所产生的纳米结构表征。通过振动样品磁力计（VSM）和UV-VI光谱分别在室温下测量最终产物的磁性和光学性质。将CO 3 O 4纳米结构锚固到石墨烯片上，通过预先翻译成功合成CO 3 O 4 /石墨烯（CO3O4 / GR）纳米复合材料。为了研究CO 3 O 4 / G纳米复合材料的催化性质，进行甲基橙（Mo）的光氧化。所进行的光催化试验表明，在75分钟照射UV光后，甲基橙降解约为54.9％。

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  • 来源
    《RSC Advances》 |2015年第79期|共8页
  • 作者

    Soofivand F.; Salavati-Niasari M.;

  • 作者单位

    Univ Kashan Inst Nano Sci &

    Nano Technol Kashan Iran;

    Univ Kashan Inst Nano Sci &

    Nano Technol Kashan Iran;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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