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Application of electrochemistry technology to effectively inhibit dye pollution and unfixed dye transfer in a washing microenvironment

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Abstract

In the washing microenvironment, the shedding of reactive dyes from cotton fabrics dyed in highly saturated color (CFSCs) causes pollution of the water environment and the staining of light-colored fabrics (LCFs) washed together, which have gradually attracted the attention of researchers in the washing machine industry and environmental field. Therefore, inspired by the application of electrochemical technology in dyeing wastewater of the textile dyeing and finishing industry, electrochemical technology was successfully applied to a washing machine to degrade reactive dyes shed from fabric, thus effectively controlling potential environmental pollution problems. First, electrochemical equipment for the washing machine was built with Ti/IrO2 as the anode and stainless steel as the cathode. Second, in the simulated washing-electrochemical degradation experiment, the electrochemical degradation parameters were selected by analyzing a single factor. The experiments show that the voltage (X1), electrolyte concentration (X2), and initial shed dye concentration (X3) had significant effects on the degradation of shed dyes from CFSCs and staining of LCF in the simulated washing system. The Box‒Behnken experimental design method was used to optimize the electrochemical degradation parameters corresponding to the simulated washing-electrochemical degradation experiment. Finally, the electrochemical equipment was installed in a real washing machine, and the washing experiment verified that the electrochemical technology could effectively inhibit the water pollution and staining problems of LCFs caused by dye desorption in the washing microenvironment, which provides technical support for the research and development of new washing machines.

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Acknowledgements

The authors would like to thank the anonymous reviewers and the associate editor for their insightful comments.

Funding

This research was funded by the Industry-University-Research Project of Jiangnan University (191186).

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Contributions

XZ is responsible for the conception of the whole study, the design, and implementation of the experiment, the collection and analysis of data, and the drafting of the first draft, CYZ, ZHR, and BXW are responsible for the planning of the paper, QBY is responsible for coordinating the research tasks and data analysis, and LHA and JLL are responsible for data analysis and the revision of the first draft. All authors read and approved the final manuscript.

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Correspondence to Jianli Liu.

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The author(s) declared no potential conflicts of interest with respect to the research, authorship, and publication of this article.

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Research does not involve any human participants and/or animals.

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Zhao, X., Zhang, C., Ren, Z. et al. Application of electrochemistry technology to effectively inhibit dye pollution and unfixed dye transfer in a washing microenvironment. Chem. Pap. 77, 1951–1970 (2023). https://doi.org/10.1007/s11696-022-02597-z

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  • DOI: https://doi.org/10.1007/s11696-022-02597-z

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