Chemistry and Chemical Engineering

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

  • Qinghua XI ,
  • Yiqiang HUANG ,
  • Jiaxiang CHEN ,
  • Er NIE ,
  • Zhuo SUN
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  • 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 date: 2020-08-28

  Online published: 2021-05-26

Abstract

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.

Cite this article

Qinghua XI , Yiqiang HUANG , Jiaxiang CHEN , Er NIE , Zhuo SUN . Study on Fe2O3/g-C3N4 photocatalytic degradation of Rhodamine B[J]. Journal of East China Normal University(Natural Science), 2021 , 2021(3) : 151 -160 . DOI: 10.3969/j.issn.1000-5641.2021.03.015

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