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首页> 外文期刊>Physical chemistry chemical physics: PCCP >Construction of magnetically separable NiAl LDH/Fe3O4-RGO nanocomposites with enhanced photocatalytic performance under visible light
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Construction of magnetically separable NiAl LDH/Fe3O4-RGO nanocomposites with enhanced photocatalytic performance under visible light

机译：可见光下的显着光催化性能施工磁性可分离的Nial LDH / Fe3O4-Rgo纳米复合材料

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摘要

Magnetic NiAl layered doubled hydroxide (LDH)/Fe3O4-RGO composites were successfully synthesized via a simple hydrothermal route. The as-prepared samples were well characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The results showed that NiAl LDH nanoplatelets and Fe3O4 nanoparticles sized around 15 nm were uniformly anchored on the surface of graphene sheets. The NiAl LDH/Fe3O4-RGO(25) photocatalyst was employed to degrade ciprofloxacin (CIP) in an aqueous solution under visible light irradiation. It exhibited enhanced photocatalytic activity compared to pure NiAl LDH, the degradation rate of the as-prepared NiAl LDH/Fe3O4-RGO(25) was 1.5 and even 3 times faster than that of NiAl LDH/RGO(25) and pure NiAl LDH, respectively. This enhancement of photocatalytic activity is attributed to the addition of graphene and Fe3O4 NPs, which both efficiently promote the separation of charge carriers and improve the optical absorption properties, synergistically facilitating the photocatalysis process. Furthermore, the NiAl LDH/Fe3O4-RGO(25) photocatalyst was magnetically separable and exhibited stable catalytic activity, which is beneficial to its practical application.
机译：通过简单的水热途径成功地合成磁性Nial层状加倍氢氧化物（LDH）/ Fe3O4-Rgo复合材料。通过X射线衍射（XRD），X射线光电子能谱（XPS），场发射扫描电子显微镜（Fe-SEM）和透射电子显微镜（TEM）的制备样品很好地表征。结果表明，在石墨烯片表面上均匀锚定，Nial LD​​H纳米孔和Fe3O4纳米颗粒大约约15nm。使用Nial LD​​H / Fe3O4-Rgo（25）光催化剂在可见光照射下降解水溶液中的环氟苄酯（CIP）。与纯NIAlLDH相比，它表现出增强的光催化活性，所准备的Nial LD​​H / Fe3O4-RGO（25）的降解速率比Nial LD​​H / RGO（25）和纯NialLDH更快，甚至3倍。分别。这种光催化活性的增强归因于添加石墨烯和Fe3O4 NPS，其既有效地促进电荷载流子的分离，并改善光学吸收性能，协同促进光催化过程。此外，Nial LD​​H / Fe3O4-Rgo（25）光催化剂是磁性分离的并且表现出稳定的催化活性，这有利于其实际应用。

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  • 作者

    Ni Jie; Xue Jinjuan; Xie LinFang; Shen Jing; He Guangyu; Chen Haiqun;

  • 作者单位

    Changzhou Univ Adv Catalysis &

    Green Mfg Collaborat Innovat Ctr Key Lab Adv Catalyt Mat &

    Technol Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Adv Catalysis &

    Green Mfg Collaborat Innovat Ctr Key Lab Adv Catalyt Mat &

    Technol Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Adv Catalysis &

    Green Mfg Collaborat Innovat Ctr Key Lab Adv Catalyt Mat &

    Technol Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Adv Catalysis &

    Green Mfg Collaborat Innovat Ctr Key Lab Adv Catalyt Mat &

    Technol Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Adv Catalysis &

    Green Mfg Collaborat Innovat Ctr Key Lab Adv Catalyt Mat &

    Technol Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Adv Catalysis &

    Green Mfg Collaborat Innovat Ctr Key Lab Adv Catalyt Mat &

    Technol Changzhou 213164 Jiangsu Peoples R China;

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  • 正文语种 eng
  • 中图分类 物理学;化学;
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