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Development of Ag/AgX (X = Cl, I) nanoparticles toward antimicrobial, UV-protected and self-cleanable viscose fibers
- Rehan, Mohamed, Khattab, Tawfik A., Barohum, Ahmed, Gätjen, Linda, Wilken, Ralph
- Carbohydrate polymers 2018 v.197 pp. 227-236
- Candida albicans, Escherichia coli, Staphylococcus aureus, antimicrobial properties, chlorine, color, iodine, ions, irradiation, methylene blue, nanoparticles, photocatalysis, silver, silver chloride, ultrasonics, ultraviolet radiation, viscose
- In situ synthesis of Ag/AgX nanoparticles (NPs) onto viscose fibers adds new functionalities and broadens their applications. In this study, Ag/AgX (X = Cl, I) NPs were in situ synthesized onto viscose fibers to impart brilliant colors, UV-protection, antimicrobial, self-cleaning, and photocatalytic properties. The AgX NPs were deposited on the fibers by ultrasonic irradiation, while Ag-NPs were formed by photoreduction of excess Ag+ ions under UV irradiation. The Ag/AgX NPs-loaded onto viscose fibers endowed with pale yellow for Ag/AgI and pale purple/violet for Ag/AgCl. The colored viscose fibers showed excellent antimicrobial activity against Escherichia coli (gram-negative), Staphylococcus aureus (Gram positive), and Candida Albican. The Ag/AgX/viscose fiber also showed excellent photocatalytic and self-cleaning activity toward degradation of methylene blue.