Abstract
This paper reports a novel route for the coloration of polyester fabric with green synthesized silver nanoparticles (G-AgNPs@PET) using chitosan as a natural eco-friendly reductant. The formation of AgNPs was confirmed by UV-visible spectroscopy. The morphologies and average particles size of G-AgNPs was investigated by transmission electron microscope (TEM) analysis. The uniform deposition of G-AgNPs on the PET fabric surface was confirmed with scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) spectroscopy. The thermal properties were investigated using a thermogravimetric analyzer (TGA). The coloration and fastness properties of fabric were found to be significantly improved, a result related to the surface plasmon resonance of G-AgNPs. The antibacterial properties of fabric were also found to be excellent as more than 80% bacterial reduction was noticed even after 10 washing cycles. Overall, the proposed coating process using green nanoparticles can contribute to low-cost production of sustainable textiles.
Highlights
Textile coloration can be summarized as the relatively simple application of colorant(s) to a substrate in a solution medium
Many efforts are ongoing regarding the establishment of green textile coloration in terms of cost effectiveness and producing harmless non-contaminant materials associated with the subsequent process [4,5,6]
As indicated by the literature, there are three methodologies available for fabric coloration using nanoparticles: fabrics impregnated with a colloidal nanoparticles solution, formation of fabric/nanoparticle nanocomposites during the spinning process, and in situ synthesis of nanoparticles on fabric [17]
Summary
Textile coloration can be summarized as the relatively simple application of colorant(s) to a substrate in a solution medium. Radetic et al [20] employed corona treatment (electrical discharge at atmospheric pressure) on polyester and polyamide textile materials to improve their bind interaction prior to application of silver nanoparticles They found that both corona-pretreated fabrics had high laundering durability and significant antibacterial activity after modification of AgNPs. Gorensek et al [21] further reported that AgNPs on Ar/N2 (50%:50%) plasma-pretreated polyester fabric demonstrated high dyeability and acceptable antibacterial properties against P. aeruginosa, E. coli and S. faecalis. The present study focused on developing chitosan-mediated green silver nanoparticles for polyester fabric coloration (G-AgNPs@PET) and, to the best of authors’ knowledge, presents such a focus for the first time in the literature. We developed a simple, green and feasible route to produce green coloration of polyester-based fabric for multifunctional applications
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