Synthesizing and stabilizing silver nanoparticles on polyamide fabric using silver-ammonia/PVP/UVC |
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| Authors: | Majid Montazer Ali Shamei Farbod Alimohammadi |
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| Affiliation: | 1. Textile Department, Center of Excellence in Textile, Amirkabir University of Technology, Tehran, Iran;2. Young Researchers Club, Islamic Azad University-South Tehran Branch, Tehran, Iran |
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| Abstract: | A colloidal dispersion of silver nanoparticles were prepared with Tollens’ reagent Ag(NH3)2]+ and polyvinyl pyrrolidone (PVP) as a reducing/stabilizing agent trough UVC irradiation and then applied on the nylon fabric by using a simple pad method. The ultraviolet irradiation was assisted to reduce Ag+ to Ag0. The presence of nanosilver in the solution and on the fabric was confirmed by UV–vis, EDX, SEM and XRD. In addition, the role of PVP as a stabilizing agent on the nylon surface was investigated. Further, an antibacterial test was carried out on the fabrics in the presence of two bacteria namely Staphylococcus aureus and Escherichia coli. The treated fabric with 200 ppm of the above mentioned solution was reduced the bacteria up to 99.2% after 20 washes. Some other properties of the fabric such as color variations, dimensional stability, water droplet adsorption and reflectance spectrum were also carried out and the results thoroughly discussed. |
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| Keywords: | Silver nanoparticles Tollens&rsquo reagent Polyvinylpyrrolidone (PVP) Ultraviolet irradiation (UV) Nylon fibers Antibacterial |
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