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Journal of Materials Science

, Volume 54, Issue 13, pp 9385–9396 | Cite as

2D visible-light-driven TiO2@Ti3C2/g-C3N4 ternary heterostructure for high photocatalytic activity

  • Xiaohui Ding
  • Yingchun Li
  • Chunhu LiEmail author
  • Wentai WangEmail author
  • Liang Wang
  • Lijuan Feng
  • Dezhi Han
Chemical routes to materials
  • 54 Downloads

Abstract

A novel 2D visible-light-driven TiO2@Ti3C2/g-C3N4 ternary heterojunction photocatalyst with modified interfacial microstructure and electronic properties was synthesized by ultrasonic-assisted calcination method. The remarkably active g-C3N4 could provide high productivity of photogenerated electrons and holes. Meanwhile, the O/OH-terminated Ti3C2 and by-product TiO2 could act as excellent supporters by migrating electrons in TiO2@Ti3C2/g-C3N4 hybrids. As a result, the highest photocatalytic activities in the degradation of aniline and RhB were increased to 5 and 1.33 times higher than that of pristine g-C3N4 under visible-light irradiation, respectively. Furthermore, we proposed that n–n heterojunction and n-type Schottky heterojunction were built up across their interfaces, which efficiently improve the transition of electrons and further promote the photocatalytic activity of TiO2@Ti3C2/g-C3N4 hybrids. More appealingly, all the results highlight that the environment-friendly TiO2@Ti3C2/g-C3N4 heterojunction hybrids would be desirable candidates for pollutants degradation.

Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (51602297, U1510109); the Major Research Project of Shandong Province (2016ZDJS11A04); the Start-up Foundation for Advanced Talents of Qingdao University of Science and Technology (010022919); the Photocatalysis of Coal-fired Boiler Flue Gas and H2O2 Oxidative Desulfurization and Denitrification Pilot Plant (17-3-3-71-nsh, 20173702021476); and the High-concentration Organic Wastewater Adsorbent Production Process (20170903). All authors have given approval to the final version of the manuscript.

Supplementary material

10853_2018_3289_MOESM1_ESM.docx (4.5 mb)
Supplementary material 1 (DOCX 4599 kb)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical EngineeringOcean University of ChinaQingdaoPeople’s Republic of China
  2. 2.College of Chemical EngineeringQingdao University of Science and TechnologyQingdaoPeople’s Republic of China

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