Journal of East China Normal University(Natural Science) ›› 2021, Vol. 2021 ›› Issue (3): 151-160.doi: 10.3969/j.issn.1000-5641.2021.03.015

• Chemistry and Chemical Engineering • Previous Articles    

Study on Fe2O3/g-C3N4 photocatalytic degradation of Rhodamine B

Qinghua XI1, Yiqiang HUANG1, Jiaxiang CHEN1, Er NIE1,2,*(), Zhuo SUN1   

  1. 1. Engineering Research Center for Nanophotonics & Advanced Instruments (Ministry of Education), School of Physics and Electronic Science, Shanghai 200241
    2. East China Normal University-University of Alberta Joint Institute of Advanced Science and Technology, East China Normal University, Shanghai 200241
  • Received:2020-08-28 Online:2021-05-25 Published:2021-05-26
  • Contact: Er NIE


In order to improve the low specific surface area of g-C3N4, three-dimensional (3D) porous g-C3N4 was prepared using high temperature thermal polymerization. Fe2O3/g-C3N4 catalyst was prepared by compositing the g-C3N4 with Fe2O3 to improve its visible light response. The decolorization rate of the Fe2O3/g-C3N4 catalyst reached 100% in 30 minutes with a g-C3N4 content of 900 mg, Rhodamine B (RhB) concentration of 20 mg·L–1, and H2O2 content of 15 mmol. The Fe2O3/g-C3N4 catalyst also demonstrated good performance in degrading other organics; the degradation rates of Methyl orange (MO) and Tetracycline (TC) reached 80% and 90%, respectively, in 30 minutes. This photocatalytic mechanism was explored by active group capture experiments, and the results show that h+ and ·OH play an important role in the progress of photocatalysis.

Key words: g-C3N4, Fe2O3, Rhodamine B(RhB), photocatalytic

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