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Preparation and properties of cellulose/silver nanocomposite fibers

•Cellulose/silver nanocomposite fibers were prepared by in situ synthesis of Ag nanoparticles in cellulose fibers through direct hydrothermal reduction.•The cellulose/silver nanocomposite fibers exhibited good mechanical properties and antibacterial properties.•The cellulose/silver nanocomposite fib...

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Bibliographic Details
Published in:Carbohydrate polymers 2015-01, Vol.115, p.269-275
Main Authors: Li, Ran, He, Meng, Li, Tong, Zhang, Lina
Format: Article
Language:English
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Summary:•Cellulose/silver nanocomposite fibers were prepared by in situ synthesis of Ag nanoparticles in cellulose fibers through direct hydrothermal reduction.•The cellulose/silver nanocomposite fibers exhibited good mechanical properties and antibacterial properties.•The cellulose/silver nanocomposite fibers would have great potential in antibacterial textile and wound handling due to easy industrialization. We prepared cellulose/silver nanocomposite fibers by soaking the cellulose fibers in AgNO3 aqueous solution, which was heated at 80°C for 24h to synthesize Ag nanoparticles in situ. The structure and properties of the composite fibers were characterized by FT-IR, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmitting electron microscopy (TEM), thermo-gravimetric analysis (TGA) and tensile testing. The content and diameter of the Ag nanoparticles (NPs) increased from 0.15% to 2.40% and from 7.2nm to 12.5nm, respectively. In our findings, the pores of the cellulose fiber at wet state were used as a microreactor to synthesize Ag nanopariticles. The cellulose/Ag nanocomposite fibers exhibited good mechanical properties and thermal stability. Antibacterial experiment revealed excellent antibacterial activity of the cellulose nanocomposite fibers against Staphylococcus aureus. The cellulose/silver nanocomposite fibers would have great potential in antibacterial textile and wound handling due to easy industrialization.
ISSN:0144-8617
1879-1344
DOI:10.1016/j.carbpol.2014.08.046