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首页> 外文期刊>Journal of Materials Research >Photoelectrocatalytic oxidation of phenol for water treatment using a BiVO_4 thin-film photoanode
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Photoelectrocatalytic oxidation of phenol for water treatment using a BiVO_4 thin-film photoanode

机译：BiVO_4薄膜光电阳极用于水处理中苯酚的光电催化氧化

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摘要

The removal of organics by photoelectrocatalytic oxidation offers a viable option to remove the contaminants at low concentrations. In this paper, we propose a BiVO_4 thin films synthesized via spray pyrolysis for photoelectrocatalyic oxidation of phenol with solar light. We compare the properties of BiVO_4 with those of the commonly used photocatalyst TiO_2. In addition, BiVO_4 films with W gradient doping were fabricated and tested for improving the photocatalytic performance of BiVO_4. X-ray diffraction, atomic force microscopy, incident photon to current efficiency and spectrophotometry have been conducted for BiVO_4 films of different thicknesses, as well as for TiO_2. The electrochemical impedance spectroscopy and dark conductivity measurements were conducted. Phenol removal has been measured for both the TiO_2 and BiVO_4 samples. The best performance was found to be for a 300 nm undoped BiVO_4 film, being able to reduce the phenol concentration up to 30.0% of the initial concentration in four hours.
机译：通过光电催化氧化去除有机物为去除低浓度的污染物提供了可行的选择。本文提出了一种通过喷雾热解法合成的BiVO_4薄膜，用于太阳光对苯酚的光电催化氧化。我们将BiVO_4的性能与常用的光催化剂TiO_2进行了比较。此外，还制备并测试了具有W梯度掺杂的BiVO_4薄膜，以改善BiVO_4的光催化性能。对不同厚度的BiVO_4薄膜以及TiO_2进行了X射线衍射，原子力显微镜，入射光子电流效率和分光光度法。进行了电化学阻抗谱和暗电导率测量。已经测量了TiO_2和BiVO_4样品的苯酚去除率。发现最好的性能是对于300 nm未掺杂的BiVO_4膜，它能够在4小时内将苯酚浓度降低至初始浓度的30.0％。

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  • 来源
    《Journal of Materials Research》 |2016年第17期|2627-2639|共13页
  • 作者

    Yasmina Bennani; Paula Perez-Rodriguez; Mathew J. Alani; Wilson A. Smith; Luuk C. Rietveld; Miro Zeman; Arno H.M. Smets;

  • 作者单位

    Drinking Water, Department of Sanitary Engineering, Faculty of Civil Engineering and Geosciences, 2628 CN Delft, The Netherlands;

    Photovoltaic Materials and Devices, Department of Electrical Sustainable Energy, Faculty of Electrical Engineering, Mathematics and Computer Science, 2628 CD Delft, The Netherlands;

    Photovoltaic Materials and Devices, Department of Electrical Sustainable Energy, Faculty of Electrical Engineering, Mathematics and Computer Science, 2628 CD Delft, The Netherlands;

    Materials for Energy Storage and Conversion (MECS) group, Department of Chemical Engineering, Faculty of Applied Sciences, 2628 BL Delft, The Netherlands;

    Drinking Water, Department of Sanitary Engineering, Faculty of Civil Engineering and Geosciences, 2628 CN Delft, The Netherlands;

    Photovoltaic Materials and Devices, Department of Electrical Sustainable Energy, Faculty of Electrical Engineering, Mathematics and Computer Science, 2628 CD Delft, The Netherlands;

    Photovoltaic Materials and Devices, Department of Electrical Sustainable Energy, Faculty of Electrical Engineering, Mathematics and Computer Science, 2628 CD Delft, The Netherlands;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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