Abstract
Textile printing and dyeing wastewater has complex water quality and causes great harm. As a common pollutant, the cationic methylene blue dye is harmful to health. Therefore, adsorption technology plays a crucial role in wastewater treatment. To study the application of hemp/polyacrylonitrile nanocomposite fiber membranes in dye adsorption, this study employed electrospinning technology. This study used electrospinning to prepare hemp/polyacrylonitrile nanocomposite fiber membranes for dye adsorption. Hemp fibers were dissolved in LiCl/DMAc, blended with polyacrylonitrile solution, and electrospun after single-factor optimization. The results show that the hemp/polyacrylonitrile composite fiber membrane has a uniform diameter distribution, good hydrophilicity, and excellent mechanical and physical properties. The particulate matter filtration test reveals that the membrane’s filtration efficiency can reach 99.97%. The adsorption of methylene blue by the hemp/polyacrylonitrile composite fiber membrane is more consistent with the pseudo-second-order kinetic model and the Langmuir adsorption isotherm model, indicating that it is mainly dominated by chemical adsorption. The adsorption process is a spontaneous endothermic reaction, and a higher temperature is more conducive to adsorption, with an adsorption capacity of up to 75.85 mg/g. The simple method yielded membranes with excellent dye adsorption and particulate filtration performance.
Data availability
All the data in this research are available upon reasonable request to the corresponding author.
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Funding
This work was supported by the 2024 Heilongjiang Provincial Colleges and Universities Basic Scientific Research Business Fee Scientific Research Project (grant number: 145409703).
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W. J.Y.: Writing – original draft, Validation,Data collection, results interpretation. S.Y.: Writing – review & editing, Methodology, Funding acquisition. K.W.S.: Writing – review & editing, Supervision, Conceptualization. J.Y.C.: Investigation, Formal analysis. All authors: The conception and design of the study, or acquisition of data, or analysis and interpretation of data. Drafting the article or revising it critically for important intellectual content.
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Sun, Y., Wang, J., Kong, W. et al. Exploration of electrospinning hemp/polyacrylonitrile composite fiber membrane and dye adsorption capabilities. Sci Rep (2026). https://doi.org/10.1038/s41598-025-33369-w
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DOI: https://doi.org/10.1038/s41598-025-33369-w