Abstract
In this study, a novel functionalization approach has been addressed by using sodium alginate (Na-Alg) assisted green silver nanoparticles (AgNPs) on traditional “Rajshahi silk” fabric via an exhaustive method. The synthesized nanoparticles and coated silk fabrics were characterized by different techniques, including ultraviolet–visible spectroscopy (UV–vis spectra), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FT-IR), which demonstrated that AgNPs with an average size of 6–10 nm were consistently deposited in the fabric surface under optimized conditions (i.e., pH 4, temperature 40 °C, and time 40 min). The silk fabrics treated with AgNPs showed improved colorimetric values and color fastness properties. Moreover, the UV-protection ability and antibacterial activity, as well as other physical properties—including tensile properties, the crease recovery angle, bending behavior, the yellowness index, and wettability (surface contact angle) of the AgNPs-coated silk were distinctly augmented. Therefore, green AgNPs-coated traditional silk with multifunctional properties has high potential in the textile industry.
Highlights
In recent years, nanoparticles have generated great interest in different fields, including chemistry, physics, materials science, life sciences, and engineering due to their superior properties; for example, optical, magnetic, electronic and catalytic properties [1]
The present paper proposed a novel approach to the functionalization of “Rajshahi silk fabric”
Spectra confirmed the presence of functional groups, while transmission electron microscopy (TEM) image and X-ray diffraction (XRD) data reveal that the synthesized assisted green silver nanoparticles (AgNPs) possess good crystalline structures
Summary
Nanoparticles have generated great interest in different fields, including chemistry, physics, materials science, life sciences, and engineering due to their superior properties; for example, optical, magnetic, electronic and catalytic properties [1]. The better stability of alginates compared to chitosan has been well documented due to their noteworthy properties, such as being water-soluble that covers gel formation in the absence of heating or cooling, and playing a pivotal role in trapping molecules—which remain free to migrate by diffusion, depending on their size—through capillary forces These features make alginates ideal for the stabilization of AgNPs in order to fulfill the demand of the eco-friendly or green synthesis approach. As a natural protein fiber, silk possesses a structure similar to human skin with easy, breathable, tender, non-itchy, and antistatic characteristics The occurrence of these distinct properties makes silk an ideal material for the selective adhering of metal ions [15]. Data from the fabrics treated with this method have been noted in detail in this study
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