ArticleACS omega2025
Electrospun Poly(vinyl alcohol)/Chitosan Nanofibers Embedded with a CuO-GO Nanocomposite for pH-Sensitive Adsorption of Heavy Metal Ions and Organic Dyes.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Engineering chitosan-based metal oxide and metal nanoparticle composites for organic dye remediation: mechanisms, performance, and future perspectives.RSC advances · 2026Review
- Upcycling Coir Fiber into Polydopamine-Enabled Adsorbents for Efficient Cu(II)/Cd(II) Removal and Effluent Safety.Materials (Basel, Switzerland) · 2026Article
- Water-borne chitosan/CuO-GO nanocomposite as an antibacterial coating for functional leather with enhanced mechanical and thermal properties.RSC advances · 2025Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The study reports on the development of innovative hierarchical hybrid nanofibers for the efficient removal of cationic heavy metals and dyes from wastewater. The successful electrospinning of poly-(vinyl alcohol) (PVA) and chitosan (CS) in combination with biosynthesized copper oxide nanoparticle-doped graphene oxide nanocomposites (CuO-GO NCs) at various ratios produced functional nanofibers. The CuO-GO NC was synthesized with a facile one-step method. The cross-linked nanofibers were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), electron microscopy (SEM and TEM), energy-dispersive X-ray (EDX), and thermogravimetric analysis (TGA). SEM results revealed that electrospun nanofibers displayed defect-free uniform spindle-like morphologies with CuO-GO partially embedded onto nanofibers, having average diameters ranging from 52.53 to 65.57 nm. Further, TEM images reveal that CuO-GO is homogeneously dispersed within the nanofiber structure. The thermal analysis demonstrated that the embedded CuO-GO in nanofibers improved the thermal properties and phase change behavior. The nanofibers with 1 wt % CuO-GO performed excellently with a maximum adsorption capacity of 155.23 mg/g for MB dye and 179.9 mg/g for Pb (II) ions. Moreover, the nanofibers exhibited superior removal efficiencies of 89.81% for Pb-(II) ions and 77.67% for MB dye. The optimal pH values for MB dye and Pb-(II) ion adsorption were determined to be 9.1 and 5.5, respectively. The recycling results demonstrated that the cross-linked nanofiber retained excellent stability and performance after four cycles. In this study, 1 wt % CuO-GO-loaded cross-linked PVA/CS nanofibers showed potential adsorption properties for treating MB and Pb (II) ions, making it suitable for wastewater treatment applications with high efficiency.
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Registered trials
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