Skip to main content
Log in

Boosting peroxymonosulfate activation by iron-based dual active site for efficient sulfamethoxazole degradation: synergism of Fe and N-doped carbon

  • Research Article
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

Persulfate activation is emerged as an alternative applied in environment remediation, but it is still a great challenge to develop highly active catalysts for efficient degradation of organic pollutants. Herein, a heterogeneous iron-based catalyst with dual-active sites was synthesized by embedding Fe nanoparticles (FeNPs) onto the nitrogen-doped carbon, which was used to activate peroxymonosulfate (PMS) for antibiotics decomposition. The systematic investigation indicated the optimal catalyst exhibited a significant and stable degradation efficiency of sulfamethoxazole (SMX), in which the SMX can be completely removed in 30 min even after 5 cycle tests. Such satisfactory performance was mainly attributed to the successful construction of electron-deficient C centers and electron-rich Fe centers via the short C-Fe bonds. These short C-Fe bonds accelerated electrons to shuttle from SMX molecules to electron-rich Fe centers with a low transmission resistance and short transmission distance, enabling Fe (III) to receive electrons to promote the regeneration of Fe (II) for durable and efficient PMS activation during SMX degradation. Meanwhile, the N-doped defects in the carbon also provided reactive bridges that accelerated the electron transfer between FeNPs and PMS, ensuring the synergistic effects toward Fe (II)/Fe (III) cycle to some extent. The quenching tests and electron paramagnetic resonance (EPR) indicated O2·− and 1O2 were the dominant active species during the SMX decomposition. As a result, this work provides an innovative method to construct a high-performance catalyst to active sulfate for organic contaminant degradation.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Scheme 1
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

Data availability

The datasets used or analyzed during the current study are available from the corresponding author on reasonable request.

References

Download references

Acknowledgements

This work was supported by the National Natural Science Foundation of China (22076019, 51708085), Xingliao talent program (XLYC2007069), Innovation Funds for Dalian Science and Technology (2021JJ12SN43), the Natural Science Foundation of Liaoning Province (2021-MS-139) and the Innovation and Entrepreneurship Projects for High-level Talents in Dalian (2019RQ132).

Author information

Authors and Affiliations

Authors

Contributions

Xinfei Fan: conceptualization, investigation, data curation, methodology, visualization, writing—original draft; Na Liu: investigation, writing—original draft, writing—review and editing, software, data curation; Jia Yang: investigation, software, writing—review and editing, data curation; Yueling Yu: writing—review and editing, data curation; Chengwen Song: writing—review and editing, supervision; Yuanlu Xu: writing—review and editing, data curation, supervision; Yanming Liu: writing—review and editing, supervision.

Corresponding author

Correspondence to Yuanlu Xu.

Ethics declarations

Ethics approval and consent to participate

Not applicable

Consent for publication

All authors agree to publication in this journal

Competing interests

The authors declare no competing interests.

Additional information

Responsible Editor: Ricardo A. Torres-Palma

Publisher's note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (DOCX 3423 KB)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Fan, X., Liu, N., Yang, J. et al. Boosting peroxymonosulfate activation by iron-based dual active site for efficient sulfamethoxazole degradation: synergism of Fe and N-doped carbon. Environ Sci Pollut Res 30, 71088–71102 (2023). https://doi.org/10.1007/s11356-023-27391-6

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11356-023-27391-6

Keywords

Navigation