The synthesis of graphene-TiO2/g-C3N4 super-thin heterojunctions with enhanced visible-light photocatalytic activities

  • Shuaiqi Gong
  • Zhengjun Jiang
  • Sheng ZhuEmail author
  • Jinchen Fan
  • Qunjie XuEmail author
  • Yulin MinEmail author
Research Paper


In this paper, an efficient strategy for the synthesis of graphene nanobelt-titanium dioxide/graphitic carbon nitride (graphene-TiO2/g-C3N4) heterostructure photocatalyst was applied to fabricate a kind of visible-light-driven photocatalyst. The heterostructure shows higher absorption edge towards harvesting more solar energy compared with pure TiO2 and pure g-C3N4 respectively. Furthermore, the as-prepared graphene-TiO2/g-C3N4 heterostructure can show enhanced photocatalytic activity under visible-light irradiation. These outstanding performances of photocatalytic activities for graphene-TiO2/g-C3N4 composites can be attributed to the heterojunction interfaces which can separate the electron-hole pairs and impede the recombination of electrons and holes more efficiently. This study conclusively demonstrates a facile and environmentally friendly new strategy to design highly efficient graphene-TiO2/g-C3N4 heterostructure photocatalytic materials for potential applications under visible-light irradiation.

Graphical abstract


Graphene Heterojunction Visible light Photocatalytic activity Nanostructured catalysts 


Funding information

This work was supported by the National Natural Science Foundation of China (NSFC) (grant nos. 21671133, 21271010, 21604051, 21507081), the Shanghai Municipal Education Commission (no. 15ZZ088, no.15SG49), Technology Commission of Shanghai Municipality (18020500800), and International Joint Laboratory on Resource Chemistry.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11051_2018_4399_MOESM1_ESM.docx (94 kb)
ESM 1 (DOCX 93 kb)


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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai Engineering Research Center of Energy-Saving in Heat Exchange SystemsShanghai University of Electric PowerShanghaiPeople’s Republic of China
  2. 2.Shanghai Institute of Pollution Control and Ecological SecurityShanghaiPeople’s Republic of China
  3. 3.College of Environmental and Chemical EngineeringShanghai University of Electric PowerShanghaiPeople’s Republic of China

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