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In-situ polymerization, colorization, and functionalization of amino-modified cotton fabrics with Catechol via horseradish peroxidase-hydrogen peroxide system

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Abstract

This article presented an innovative amino modification of cotton fabric using 2-chloro-4,6-diamino-1,3,5-triazine (CDATA, the intermediate of reactive dyes). The horseradish peroxidase enzyme (HRP)/H2O2 system was used to catalyze the grafting and polymerization of CDATA modified cotton fabrics and Catechol (CA). The amino group content of modified cotton fabric was successfully verified using Raman spectroscopy, energy dispersive spectroscopy, and high-performance liquid chromatography—mass spectrometry, and the amino content was about 2.09−3mmol/g. Response surface methodology was employed to optimize the dyeing process with four factors: H2O2 dosage, CA dosage, HRP dosage, and pH of buffer solution. Under the optimized process, the K/S value of the dyed fabrics could reach 10.0, exhibiting high color depth, dyeing uniformity, and friction fastness. The grafting chain structure of CA was controlled through L-ascorbic acid, which gave the fabric different colors and improved the dyeing performance and color fastness of CA. Finally, the covalent binding mechanism between CA and amino-modified cotton fabrics was explored. Research has found that the amino groups of cotton fibers react with the reactive groups of CA to form covalent bonds, thereby improving dyeing performance and color fastness.

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Funding

This work was financially supported by the Natural Science Foundation of Jiangsu Province, China (Grants No. BK 20231054).

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All authors contributed to the study. Lou J and Sun R.. wrote the main manuscript text and supervised it, Yuan J. and Xu J. contributed to the methodology and investigation, Fan X. and Gu Z. reviewed the manuscript and commented them. All authors reviewed the manuscript.

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Correspondence to Jiangfei Lou or Xuerong Fan.

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Lou, J., Sun, R., Yuan, J. et al. In-situ polymerization, colorization, and functionalization of amino-modified cotton fabrics with Catechol via horseradish peroxidase-hydrogen peroxide system. Cellulose (2024). https://doi.org/10.1007/s10570-024-05859-z

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  • DOI: https://doi.org/10.1007/s10570-024-05859-z

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