Assembling Fe(III)-Citrate Complexes on Graphitic Carbon Nitride for Coupling Photocatalysis with Fenton Reaction

Abstract:

Surface functionalization of graphitic carbon nitride (g-C₃N₄) through self-assembly is an effective way to improve the photocatalytic activity and to couple with chemical catalytic process. Herein, we report that Fe (III)-citrate complex molecules are assembled on the surface of g-C₃N₄ to improve the photocatalytic activity by coupling with Fenton reaction. The iron (III) species attached on the surface of g-C₃N₄ are in the form of complex. The Fe (III)-citrate complex shows little impact on the bulk structures of g-C₃N₄. In the dark, assembly of Fe (III)-citrate complexes on g-C₃N₄ (Fe (III)-Cit/g-C₃N₄) exhibits no activity for degrading the Rhodamine B (RhB) solution under the assistance of H₂O₂. But, it shows high catalytic activity with degradation efficiency of 100% for RhB solution (10 mg L^-1) under the simulated solar light irradiation for 30 minutes. Furthermore, the adsorption capacity and photocatalytic activity are retainable during the following 5 cycles. The retainable stability and enhanced catalytic activity of the assembly of Fe (III)-citrate complexes on g-C₃N₄ pave the ways to design advanced photocatalysts by employing supermolecular interaction.

• Periodical: Advanced Materials Research (Volumes 1010-1012)
• Pages: 185-189
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1010-1012.185
• Online since: August 2014
• Authors: Xin Li, Jing Hai Liu*, Baosharileaodou Baosharileaodou, Hen An Yang, Fei Huang, Xin Gang Guo, Hui Yang, Qi Xin Wang, Li Mei Duan, Zong Rui Liu
• Keywords: Fe (III)-citrate Complexes, Fenton Reaction, Graphitic Carbon Nitride, Photocatalysis

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