Polythiophene-tungsten selenide/nitrogen-doped graphene oxide nanocomposite for visible light-driven photocatalysis

  • Yanan Liu
  • Han Yin
  • Chengcheng Xu
  • Xingchen Zhuge
  • Jun WanEmail author
Research Paper


The organic dye pollutants are of more concern due to their toxic effects on human health, animals, and plants, and researchers thus should pay more attention to their removal. The nanocomposite photocatalysts of polythiophene-tungsten selenide/nitride-doped graphene oxide (PTh-WSe2/NG) were synthesized by a facile hydrothermal method. The catalytic activity of the nanocomposite was detected by degradation methylene blue (MB) under visible light. The as-prepared nanocomposite was characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray powder diffraction (XRD), and Fourier transform infrared spectroscopy (FT-IR). The results showed that the photocatalytic performance of the composites was better than those of WSe2 and PTh. This was mainly due to the PTh-WSe2/NG which contains excellent conductivity and charge separation characteristics of PTh, WSe2, and NG. They effectively inhibit the recombination of electron-hole pairs of PTh-WSe2/NG. 12.5 wt% PTh-WSe2/NG (12.5 wt% of PTh) was the most efficient catalyst, with the removal rate reaching to 94.8% of 1.0 × 10–4 mol/L MB within 60 min of visible light irradiation.


Polythiophene Tungsten selenide Photocatalytic Degradation wastewater Nanostructured catalyst 


Funding information

This work was supported by the Shandong Province Natural Science Foundation (ZR2017MB049) and the Shandong Province University of Science and Technology Plan Projects (J17KA108).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11051_2019_4648_MOESM1_ESM.doc (2.9 mb)
ESM 1 (DOC 2993 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.School of Environment and Safety EngineeringQingdao University of Science and TechnologyQingdaoChina

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