Jump to main content
Jump to site search

Issue 10, 2019
Previous Article Next Article

Ce3+ self-doped CeOx/FeOCl: an efficient Fenton catalyst for phenol degradation under mild conditions

Author affiliations

Abstract

Herein, a novel Ce3+ self-doped CeOx/FeOCl composite was successfully prepared by a facile method for the first time, which showed remarkable catalytic activity as a Fenton catalyst in the degradation of phenol under the conditions of a neutral solution, room temperature and natural light. In CeOx/FeOCl, 5.23% CeOx is the optimal condition, and the degradation constant (k) of CeOx/FeOCl is greater than that of FeOCl by a factor of 10.8. CeOCl in the composite plays a more important role than CeO2, which greatly increases the production of ˙OH radicals. Furthermore, the Ce-doping in FeOCl accelerates the separation efficiency of the photogenerated electron–hole pairs. The increased surface area and surface potential of CeOx/FeOCl than those of FeOCl effectively promote the adsorption of phenol, which is 4.05 times that of FeOCl. According to the DFT calculations, the Ce-doping in FeOCl enhances the structural stability by increasing the strength of the chemical bonds. The adsorption of H2O2 with Ce3+ is energetically favorable, which promotes the production of ˙OH radicals. A synergistic mechanism for the enhanced catalytic performance of CeOx/FeOCl is proposed.

Graphical abstract: Ce3+ self-doped CeOx/FeOCl: an efficient Fenton catalyst for phenol degradation under mild conditions

Back to tab navigation

Supplementary files

Publication details

The article was received on 25 Oct 2018, accepted on 11 Feb 2019 and first published on 11 Feb 2019


Article type: Paper
DOI: 10.1039/C8DT04269A
Citation: Dalton Trans., 2019,48, 3476-3485

  •   Request permissions

    Ce3+ self-doped CeOx/FeOCl: an efficient Fenton catalyst for phenol degradation under mild conditions

    J. Zhang, M. Yang, Y. Lian, M. Zhong, J. Sha, G. Liu, X. Zhao and S. Liu, Dalton Trans., 2019, 48, 3476
    DOI: 10.1039/C8DT04269A

Search articles by author

Spotlight

Advertisements