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Nano Research

, Volume 11, Issue 6, pp 3462–3468 | Cite as

Template-free large-scale synthesis of g-C3N4 microtubes for enhanced visible light-driven photocatalytic H2 production

  • Chao Zhou
  • Run Shi
  • Lu Shang
  • Li-Zhu Wu
  • Chen-Ho Tung
  • Tierui Zhang
Research Article
  • 267 Downloads

Abstract

A template-free hydrothermal-assisted thermal polymerization method has been developed for the large-scale synthesis of one-dimensional (1D) graphitic carbonnitride (g-C3N4) microtubes. The g-C3N4 microtubes were obtained by simple thermal polymerization of melamine-cyanuric acid complex microrods under N2 atmosphere, which were synthesized by hydrothermal treatment of melamine solution at 180 °C for 24 h. The as-obtained g-C3N4microtubes exhibited a large surface area and a unique one-dimensional tubular structure, which provided abundant active sites for proton reduction and also facilitated the electron transfer processes. As such, the g-C3N4 microtubes showed enhanced photocatalytic H2 productionactivity in lactic acid aqueous solutions under visible light irradiation (λ ≥ 420 nm), which was ∼ 3.1 times higher than that of bulk g-C3N4 prepared by direct thermal polymerization of the melamine precursor under the same calcination conditions.

Keywords

g-C3N4 microtubes photocatalytic water splitting visible light response 

Notes

Acknowledgements

This work was supported by the National Basic Research Program of China (No. 2014CB239402), the National Key Projects for Fundamental Research and Development of China (Nos. 2016YFB0600901, 2017YFA0206904, and 2017YFA0206900), the National Natural Science Foundation of China (Nos. 51772305, 51572270, U1662118, and 21401207), the Strategic Priority Research Program of the Chinese Academy of Sciences (No. XDB17000000), and the Youth Innovation Promotion Association of the CAS.

Supplementary material

12274_2018_2003_MOESM1_ESM.pdf (774 kb)
Template-free large-scale synthesis of g-C3N4 microtubes for enhanced visible light-driven photocatalytic H2 production

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Copyright information

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Chao Zhou
    • 1
  • Run Shi
    • 1
    • 2
  • Lu Shang
    • 1
  • Li-Zhu Wu
    • 1
  • Chen-Ho Tung
    • 1
  • Tierui Zhang
    • 1
    • 2
  1. 1.Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijingChina
  2. 2.University of Chinese Academy of SciencesBeijingChina

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