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Journal of Materials Science

, Volume 54, Issue 6, pp 4811–4820 | Cite as

Sulfur-doped porous graphitic carbon nitride heterojunction hybrids for enhanced photocatalytic H2 evolution

  • Hengfei QinEmail author
  • Wenhua Lv
  • Jirong Bai
  • Yue Zhou
  • Yingpin Wen
  • Qinting He
  • Jianghong Tang
  • Liangbiao Wang
  • Quanfa ZhouEmail author
Energy materials
  • 111 Downloads

Abstract

Graphitic carbon nitride (g-C3N4) is considered as an attractive, efficient and newly generated photocatalyst material owing to its distinct properties such as metal free, suitable band gap and high physicochemical stability. Nevertheless, the photocatalytic activity of pure g-C3N4 was limited by the fast recombination rate of photoinduced electron–hole pairs and relatively low specific surface area. In this study, we provide a new prospect to overcome the problem by using another suitable precursor urea-assisted copolymerization with thiourea which is expected to optimize the process of thermal condensation, inhibit agglomeration and improve the specific surface area; meanwhile, the formed isotype heterogeneous junction effectively inhibits charge carrier recombination. The formed g-C3N4 isotype heterojunction photocatalyst manifested significant improvement photocatalytic hydrogen production than the single and pure g-C3N4 sample. This significant enhanced photocatalytic performance is mainly ascribed to inhibited recombination, enriched active site and enlarged specific surface area.

Notes

Acknowledgements

The work was supported by the National Natural Science Foundation of China (Grant Nos. 31800495 and 21701061), Natural Science Foundation of Jiangsu Province (Grant Nos. BK20181040 and BK20160292), Natural Science Foundation of the Higher Education Institutions of Jiangsu Province (Grant No. 17KJB430014).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Jiangsu Key Laboratory of E-Waste Recycling, Department of Chemistry and Environmental EngineeringJiangsu University of TechnologyChangzhouChina
  2. 2.Department of Environmental Science and EngineeringFudan UniversityShanghaiChina

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