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Article Navigation >  Green Energy&Environment  > 2018  >  3(3): 229-238
Mao Mao, Shuowei Zhao, Zhigang Chen, Xiaojie She, Jianjian Yi, Kaixiang Xia, Hui Xu, Minqiang He, Huaming Li. Designing all-solid-state Z-Scheme 2D g-C3N4/Bi2WO6 for improved photocatalysis and photocatalytic mechanism insight. Green Energy&Environment, 2018, 3(3): 229-238. doi: 10.1016/j.gee.2017.11.001
Citation: Mao Mao, Shuowei Zhao, Zhigang Chen, Xiaojie She, Jianjian Yi, Kaixiang Xia, Hui Xu, Minqiang He, Huaming Li. Designing all-solid-state Z-Scheme 2D g-C3N4/Bi2WO6 for improved photocatalysis and photocatalytic mechanism insight. Green Energy&Environment, 2018, 3(3): 229-238. doi: 10.1016/j.gee.2017.11.001
shu

Designing all-solid-state Z-Scheme 2D g-C3N4/Bi2WO6 for improved photocatalysis and photocatalytic mechanism insight

doi: 10.1016/j.gee.2017.11.001
  • a.

    School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China

  • b.

    Institute of Environmental Science, Zhenjiang, Jiangsu 212001, China

More Information
  • Corresponding author: E-mail address: jbmwgkc@126.com (Minqiang He); E-mail address: lihm@ujs.edu.cn (Huaming Li)
  • Received date 07 August 2017, Accepted date 14 November 2017, RevRecd date 31 October 2017, Available online 23 November 2017, Publish date 31 July 2018,
    Abstract
  • Bi2WO6 was modified by two-dimensional g-C3N4 (2D g-C3N4) via a hydrothermal method. The structure, morphology, optical and electronic properties were investigated by multiple techniques, including X-ray diffraction (XRD), X-ray photoelectron spectroscopy spectra (XPS), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Ultraviolet-visible diffuse reflection spectroscopy (DRS), photocurrent and electrochemical impedance spectroscopy (EIS), electron spin resonance (ESR), respectively. Rhodamine B (RhB) was used as the target organic pollutant to research the photocatalytic performance of as-prepared composites. The Bi2WO6/2D g-C3N4 exhibited a remarkable improvement compared with the pure Bi2WO6. The enhanced photocatalytic activity was because the photogenerated electrons and holes can quickly separate by Z-Scheme passageway in composites. The photocatalytic mechanism was also researched in detail through ESR analysis.

     

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