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Characterization and visible light driven photocatalytic activity of (M = Bi, La) MVO_4@poly(o-phenylenediamine) nanocomposite

机译：（M = Bi，La）MVO_4 @聚（邻苯二胺）纳米复合材料的表征和可见光驱动的光催化活性

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摘要

Poly(o-phenylenediamine) decorated (M = Bi or La) MVO4 (MVO4@PoPD) nanocomposites (NCs) have been prepared through chemical oxidative polymerization approach. Microstructural analyses of MVO4@PoPD NCs were performed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Structural characterization was performed by X-ray diffraction (XRD), Fourier transform infrared (FT-IR) and Ultraviolet-Visible (UV-Vis.) spectroscopy. The obtained results predict that PoPD was attached with MVO4 nanocrystals. Photocatalytic activity of NCs has been demonstrated using methylene blue (MB) as a model dye pollutant. Within 120 min of visible light illumination, 96.3% and 70.4% MB degradation efficiency was observed for BiVO4@PoPD and LaVO4@PoPD respectively. Further, 94.1% and 97% degradation of textile effluent (TE) was observed in presence of BiVO4@PoPD and LaVO4@PoPD respectively. Hence, the photocatalysts will become a promising material in the field of environmental remediation.
机译：聚（邻苯二胺）装饰的（M = Bi或La）MVO4（MVO4 @ PoPD）纳米复合材料已经通过化学氧化聚合方法制备。 MVO4 @ PoPD NCs的显微结构分析是通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）进行的。通过X射线衍射（XRD），傅立叶变换红外（FT-IR）和紫外可见（UV-Vis。）光谱进行结构表征。获得的结果表明，PoPD与MVO4纳米晶体相连。已使用亚甲基蓝（MB）作为模型染料污染物证明了NCs的光催化活性。在120分钟的可见光照射下，BiVO4 @ PoPD和LaVO4 @ PoPD分别观察到96.3％和70.4％MB的降解效率。此外，在BiVO4 @ PoPD和LaVO4 @ PoPD的存在下，分别观察到了94.1％和97％的纺织品废水降解。因此，光催化剂将成为环境修复领域中有希望的材料。

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  • 来源
    《Materials Science and Engineering》 |2019年第1期|41-48|共8页
  • 作者

    Sivakumar V.; Suresh R.; Giribabu K.; Narayanan V.;

  • 作者单位

    Univ Madras, Dept Inorgan Chem, Guindy Maraimalai Campus, Chennai 600025, Tamil Nadu, India|Orchid Chem & Pharmaceut Ltd, Ctr Res & Dev, Chennai 600119, Tamil Nadu, India;

    Univ Concepcion, Dept Analyt & Inorgan Chem, Concepcion, Chile;

    CSIR, Cent Electrochem Res Inst, Electrod & Electrocatalysis Div, Karaikkudi 630003, Tamil Nadu, India;

    Univ Madras, Dept Inorgan Chem, Guindy Maraimalai Campus, Chennai 600025, Tamil Nadu, India;

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  • 正文语种 eng
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  • 关键词

    BiVO4; LaVO4; Poly(o-phenylenediamine); Nanocomposite; Methylene blue;

    机译：BiVO4;LaVO4;聚（邻苯二胺）;纳米复合材料;亚甲基蓝;

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