Skip to main content
Log in

Selective Decolorization of Methylene Blue from Methyl Orange in Heterogeneous Fenton-like Reaction

  • Research paper
  • Published:
International Journal of Environmental Research Aims and scope Submit manuscript

Abstract

Selective decolorization of mixed dyestuffs was realized by heterogeneous catalyst. A series of Cu/Fe@biochar composites containing different amounts of copper and iron were fabricated and all exhibited excellent catalytic performance in the degradation of methyl orange and methylene blue. The composite containing the highest metal component with 294.44 mg/g iron and 16.22 mg/g copper could decolorize 97.35% methyl orange in 60 min and 100% methylene blue in 10 min when the composite loading amount was 100 mg/L with 64 mM H2O2 in a 500 mg/L dyestuff solution at pH 3.0. In a solution containing methyl orange and methylene blue both in 200 mg/L and 100 mg/L the composite could decolorize almost 100% methylene blue in 10 min with 48 mM H2O2 while 74.9% methyl orange was left. Investigation revealed that methyl orange was mainly degraded on the catalyst surface and methylene blue in the solution. The selectivity was related to competitive adsorption and phase where dyestuff was degraded and depended on the performance of catalyst. Factors influencing degradation would also impact selectivity. This finding might be viable in application to reuse dyeing wastewater.

Highlights

  • A Cu/Fe@biochar composite was fabricated to be an efficient heterogeneous catalyst.

  • Decolorization rates of MB and MO were different.

  • Selective decolorization of MB and MO happened on the composite.

  • Selective decolorization was carried out at high dyestuff concentration.

  • Mechanism of selective decolorization was discussed.

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

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

Acknowledgements

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Buyun Wang.

Ethics declarations

Conflict of Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (PDF 441 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

Wang, X., Liu, X., Yuan, F. et al. Selective Decolorization of Methylene Blue from Methyl Orange in Heterogeneous Fenton-like Reaction. Int J Environ Res 17, 17 (2023). https://doi.org/10.1007/s41742-023-00509-x

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s41742-023-00509-x

Keywords

Navigation