Skip to main content
Log in

A comparison study of applying natural iron minerals and zero-valent metals as Fenton-like catalysts for the removal of imidacloprid

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

Abstract

Natural iron minerals and zero-valent metals have been widely tested as catalysts for the Fenton-like process, but the systematical comparison study about their catalytic performance was rarely conducted, and the risk of the secondary pollution of toxic heavy metals was still not uncertain. In this paper, a comparison study of applying pyrite, ilmenite, vanadium titano-magnetite (VTM), zero-valent iron (ZVI), and zero-valent copper (ZVC) as Fenton-like catalysts for the removal of imidacloprid was performed. The results showed that ZVI exhibited the highest activity among the recyclable solid catalysts with a removal rate of 96.8% at initial pH 3 using 10.78 mmol/L H2O2, due to iron corrosive dissolution. Vanadium titano-magnetite (VTM) exhibited the best activity at first use among tested minerals but with low reusability. Pyrite with stable morphology showed a medium but sustainable ability to degrade imidacloprid, achieving a removal rate of 10.5% in the fifth use. The reaction much favored the acidic condition of initial pH around 2 or 3. Meanwhile, there was a significant positive correlation between removal efficiency and dissolved Fe or Cu concentration. Pyrite was considered to be a promising catalyst in Fenton-like reaction. It was suggested that the system proceeded predominantly through a homogeneous route via dissolved Fe or Cu ions. Except ZVC and VTM, other tested catalysts showed the low possibility of causing secondary pollution of toxic metals in the application of Fenton-like process.

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.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Scheme 1

Similar content being viewed by others

Data availability

All data generated or analyzed during this study are included in this published article (and its supplementary information files).

References

Download references

Funding

The research was financially supported by the Natural Science Foundation of Jiangxi Province (20202BABL213024), the Scientific Research Fund of Jiangxi Provincial Education Department (GJJ190229), and the Doctoral Research Fund of the Jiangxi Agricultural University (Project No.9232307058).

Author information

Authors and Affiliations

Authors

Contributions

Siwan Liu, Wenwei Yu, and Huang Cai conducted the main experiments. Faying Lai and Huajun Huang interpreted the study of leached toxic heavy metals. Hansun Fang did the analysis of imidacloprid degradation mechanism. Jinbao He designed the whole experiment and wrote the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Jinbao He.

Ethics declarations

Ethics approval and consent to participate

Not applicable.

Consent for publication

Not applicable.

Conflict of interest

The authors declare no competing interests.

Additional information

Responsible Editor: Ricardo Torres-Palma

Publisher’s note

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

Supplementary information

ESM 1

Chemical structure of imidacloprid; Photograph of natural minerals and zero-valent metals; Characteristics of simulated imidacloprid wastewater; UV-visible spectrum of the prepared wastewater; linear fitting result of the relationship between imidacloprid concentration and the absorbance at 270 nm; UV-visible spectra of the solutions after removing the metallic sludge in alkaline condition; SEM images of fresh and five-times-used ilmenite, VTM, ZVC as well as EDS image and elemental composition of them; textural properties of the studied materials; the concentrations of dissolved Cu and Fe after consecutive reactions at initial pH 3; total ion chromatogram from GC–MS analysis of the ZVI treated sample. (DOCX 10971 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Liu, S., Yu, W., Cai, H. et al. A comparison study of applying natural iron minerals and zero-valent metals as Fenton-like catalysts for the removal of imidacloprid. Environ Sci Pollut Res 28, 42217–42229 (2021). https://doi.org/10.1007/s11356-021-13731-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11356-021-13731-x

Keywords

Navigation