Textile Industries Research Division, National Research Centre, 33 El-Buhouth Street, Dokki, Cairo 12622, Egypt; Fraunhofer Institute for Manufacturing Technology and Applied Materials Research (IFAM), Wiener Street 12, D-28359 Bremen, Germany.
Textile Industries Research Division, National Research Centre, 33 El-Buhouth Street, Dokki, Cairo 12622, Egypt.
Carbohydr Polym. 2018 Oct 1;197:227-236. doi: 10.1016/j.carbpol.2018.06.010. Epub 2018 Jun 4.
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.
在粘胶纤维上原位合成 Ag/AgX 纳米颗粒（NPs）为其赋予了新的功能，并拓宽了其应用范围。本研究将 Ag/AgX（X=Cl、I）纳米颗粒原位合成到粘胶纤维上，赋予其绚丽的色彩、抗紫外线、抗菌、自清洁和光催化性能。AgX NPs 通过超声辐照沉积在纤维上，而 Ag-NPs 则通过 UV 辐照下过量 Ag 离子的光还原形成。负载在粘胶纤维上的 Ag/AgX NPs 使 Ag/AgI 呈淡黄色，Ag/AgCl 呈淡紫色/紫红色。有色粘胶纤维对大肠杆菌（革兰氏阴性菌）、金黄色葡萄球菌（革兰氏阳性菌）和白色念珠菌具有优异的抗菌活性。Ag/AgX/粘胶纤维对亚甲基蓝的降解也表现出优异的光催化和自清洁活性。
