Catalysis Letters

, Volume 148, Issue 2, pp 601–611 | Cite as

Graphitic Carbon Nitride with S and Fe(III) Codoping for Improved Photodegradation Performance

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Abstract

The visible light photocatalytic performance of graphitic carbon nitride (g-C3N4) can be enhanced by tuning its electronic structure and bandgap via metal and nonmetal elements doping. The Fe and S codoped g-C3N4 is synthesized by the polymerization of melamine, iron chloride and trithiocyanuric acid at elevated temperature and characterized as crimped nanosheets with mesoporous structures. The photocatalytic performance of Fe–S codoped g-C3N4 for RhB degradation increases seven times by enhancing visible light adsorption and increasing the mobility of photoinduced electron/hole pair by narrowing its bandgap compared to the pure g-C3N4 nanosheets. The synergetic effect of Fe(III) ion coordinated in the pore centre among three triazine units and S dopant substituted the N in triazine skeleton causes much stronger delocalized HOMO and LUMO and increases the reactive sites, facilitating the migration of photogenerated charge carriers, thus enhances the visible-light driven photocatalytic performance.

Graphical Abstract

Keywords

Graphitic carbon nitride Visible-light driven photocatalyst Photocatalysis Non-metal doping Metal doping 

Notes

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Grant No. 21173170).

Author Contributions

The manuscript was written through contributions of all authors. All authors have given approval to the final version of the manuscript.

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© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Faculty of Materials and EnergySouthwest UniversityChongqingChina

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