Xie, B., Zhang, Z., Lu, Y., Cui, L., Xu, C., Shi, W., & Wu, S. (2024). Fabrication of Sodium Alginate/Polyethyleneimine/ Polyvinyl Alcohol Multilayer Composite Electrospun Nanofiber Membrane for Cu2+ Removal. Preprints. https://doi.org/10.20944/preprints202404.1548.v1
Chicago/Turabian Style
Xie, B., Weijian Shi and Shuping Wu. 2024 "Fabrication of Sodium Alginate/Polyethyleneimine/ Polyvinyl Alcohol Multilayer Composite Electrospun Nanofiber Membrane for Cu2+ Removal" Preprints. https://doi.org/10.20944/preprints202404.1548.v1
Abstract
In this study, multilayer composite nanofiber membranes of sodium alginate (SA) /polyethyleneimine (PEI)/polyvinyl alcohol (PVA) was fabricated via electrospinning technique to enhance the adsorption of Cu2+ from wastewater. The preparation and adsorption mechanisms of the SA/PEI/PVA nanofiber membranes were analyzed by utilizing analytical techniques such as SEM, FTIR, EDS, UV-vis, XRD, and TG. The obtained nanofiber membrane characterized by small diameter, high uniformity, and extensive surface area, demonstrate significant potential for heavy metal ion filtration. Optimal spinning parameters were identified, including a voltage of 19.5 KV, a distance of 8 cm, and specific mass ratios (SA: PEI: PVA, 1:2:6) and injection speeds (8 μL/min) and. The resulting nanofibers with an average diameter of 112.5 nm exhibited excellent morphology and high efficiency, retaining over 85% adsorption capacity for Cu2+ in initial tests and maintaining above 80% efficacy through four successive filtration cycles.
Chemistry and Materials Science, Materials Science and Technology
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